Slobber tube - cheap fix for blowby
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04-20-2007, 03:05
Post: #1
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Slobber tube - cheap fix for blowby
On my 94 Bluebird BMC I have one engine vent "slobber tube". The
blowby was ending up on the tow car. On our trip we just returend from, I used a empty 1 gallon distilled water jug (like a 1 gal milk jug), stuffed some steel wool down into it, cut some vent holes at the top, and wired/duct taped it to the slobber tube. End of blowby. A 2 liter soda bottle should work also. Just returned home yesterday, and haven't checked the jug yet to see what it collected, but the tow car is clean. Should work for radiator contamination prevention of blowby. Dan 94 BB BMC NM --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > A part of the crankcase ventilation system. I my case one each tube attached to the left and right cylinder heads near the valve covers which drop to road level and one large crankcase breather tube which hangs well below the engine pan. In my set up any oil slobber hits the road. Hence, the buzz word "slobber tubes" > > Leroy Eckert > 1990 WB-40"Smoke N Mirrors" > Niceville, FL > > ----- Original Message ----- > From: Scott Forman > To: WanderlodgeForum@yahoogroups.com > Sent: Wednesday, April 18, 2007 7:01 PM > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > What is a "slobber tube"? Never heard that one.... > > Scott > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > wrote: > > > > PTs have a tendency for the radiator to become clogged with dirt. > > It's difficult to examine as shrouds and other appliances get in > the > > way. The area swept by the fan usually is clear, but the > surrounding > > area can be clogged with oily-dirt. (The "slobber tubes" feed hot > oil > > vapor that mixes with dirt kicked up by the fan to clog the > > radiator.) This is a maintenance item (wash out with sudsy, warm > > water from time to time) but can become a serious issue if it > causes > > the engine to overheat. > > > > Most of the rest is standard 'bird stuff... Of course the engine > can > > have some considerable differences -- cat 3208 vs DD 6v92 or 8v92 > > (depending on year). > > > > You won't need a 'swing away' radiator! > > > > Pete Masterson > > '95 Blue Bird Wanderlodge WBDA 42 > > aeonix1@ > > On the road at Johnson City Texas > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > Are there are common problems on PT's I should look out for? I > > > have an > > > FC and know a lot about them, but have zero hands-on experience > with a > > > PT. Anything I should pay special attention to outside of the > > > "normal" > > > things would be helpful. > > > > > > > > [Non-text portions of this message have been removed] > |
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04-20-2007, 07:10
Post: #2
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Slobber tube - cheap fix for blowby
On my 85PT40, I routed the slobber tubes to a horizontally hung 30"
long piece of 4" PVC with end caps and a drain in the bottom. There is a breather on the top to allow ventilation. It is usually 1/3 full at each oil change- No more drips! Shane Fedeli Hershey, PA --- In WanderlodgeForum@yahoogroups.com, "ac7880" > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > blowby was ending up on the tow car. On our trip we just returend > from, I used a empty 1 gallon distilled water jug (like a 1 gal milk > jug), stuffed some steel wool down into it, cut some vent holes at > the top, and wired/duct taped it to the slobber tube. End of blowby. > A 2 liter soda bottle should work also. > > Just returned home yesterday, and haven't checked the jug yet to see > what it collected, but the tow car is clean. Should work for > radiator contamination prevention of blowby. > Dan > 94 BB BMC NM > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > A part of the crankcase ventilation system. I my case one each > tube attached to the left and right cylinder heads near the valve > covers which drop to road level and one large crankcase breather tube > which hangs well below the engine pan. In my set up any oil slobber > hits the road. Hence, the buzz word "slobber tubes" > > > > Leroy Eckert > > 1990 WB-40"Smoke N Mirrors" > > Niceville, FL > > > > ----- Original Message ----- > > From: Scott Forman > > To: WanderlodgeForum@yahoogroups.com > > Sent: Wednesday, April 18, 2007 7:01 PM > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > What is a "slobber tube"? Never heard that one.... > > > > Scott > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > wrote: > > > > > > PTs have a tendency for the radiator to become clogged with > dirt. > > > It's difficult to examine as shrouds and other appliances get > in > > the > > > way. The area swept by the fan usually is clear, but the > > surrounding > > > area can be clogged with oily-dirt. (The "slobber tubes" feed > hot > > oil > > > vapor that mixes with dirt kicked up by the fan to clog the > > > radiator.) This is a maintenance item (wash out with sudsy, > warm > > > water from time to time) but can become a serious issue if it > > causes > > > the engine to overheat. > > > > > > Most of the rest is standard 'bird stuff... Of course the > engine > > can > > > have some considerable differences -- cat 3208 vs DD 6v92 or > 8v92 > > > (depending on year). > > > > > > You won't need a 'swing away' radiator! > > > > > > Pete Masterson > > > '95 Blue Bird Wanderlodge WBDA 42 > > > aeonix1@ > > > On the road at Johnson City Texas > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > Are there are common problems on PT's I should look out for? > I > > > > have an > > > > FC and know a lot about them, but have zero hands-on > experience > > with a > > > > PT. Anything I should pay special attention to outside of the > > > > "normal" > > > > things would be helpful. > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > |
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04-20-2007, 09:25
Post: #3
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Slobber tube - cheap fix for blowby
Shane it sounds like a good plan. BUT, I fear that reengineering the
vertical path of the tubes with a horizontal turn will add the grave possibility that crud will buildup and block the process. MikH posted a link to an article which describes the Scavanging process on the 2 cycle DDV92's. The Scavanging is blown out the Slobbertubes. http://www.yachtsurvey.com/comparing_die...es.htm#TOP The engineers design engines to operate optimal at a given temp. That temp is controlled by a specified thermostat and fan cycle. WHen the engine is cold or run cold the tolerances are out of planned specs and the crankcase gets internal pressures. If you hold the crankcase pressure in it will come out the weakest spot which is around the tin pan and weaker gaskets. The other paths will weep oil dynamically even when op temp is reached I correct the drops of oil on my toad with windex and detail spray GregoryO'Connor 94ptRomolandCa --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...> wrote: > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > long piece of 4" PVC with end caps and a drain in the bottom. There is > a breather on the top to allow ventilation. It is usually 1/3 full at > each oil change- No more drips! > > Shane Fedeli > Hershey, PA > > --- In WanderlodgeForum@yahoogroups.com, "ac7880" wrote: > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > blowby was ending up on the tow car. On our trip we just returend > > from, I used a empty 1 gallon distilled water jug (like a 1 gal milk > > jug), stuffed some steel wool down into it, cut some vent holes at > > the top, and wired/duct taped it to the slobber tube. End of blowby. > > A 2 liter soda bottle should work also. > > > > Just returned home yesterday, and haven't checked the jug yet to see > > what it collected, but the tow car is clean. Should work for > > radiator contamination prevention of blowby. > > Dan > > 94 BB BMC NM > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > > > > A part of the crankcase ventilation system. I my case one each > > tube attached to the left and right cylinder heads near the valve > > covers which drop to road level and one large crankcase breather tube > > which hangs well below the engine pan. In my set up any oil slobber > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > Leroy Eckert > > > 1990 WB-40"Smoke N Mirrors" > > > Niceville, FL > > > > > > ----- Original Message ----- > > > From: Scott Forman > > > To: WanderlodgeForum@yahoogroups.com > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > Scott > > > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > > > wrote: > > > > > > > > PTs have a tendency for the radiator to become clogged with > > dirt. > > > > It's difficult to examine as shrouds and other appliances get > > in > > > the > > > > way. The area swept by the fan usually is clear, but the > > > surrounding > > > > area can be clogged with oily-dirt. (The "slobber tubes" feed > > hot > > > oil > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > radiator.) This is a maintenance item (wash out with sudsy, > > warm > > > > water from time to time) but can become a serious issue if it > > > causes > > > > the engine to overheat. > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > engine > > > can > > > > have some considerable differences -- cat 3208 vs DD 6v92 or > > 8v92 > > > > (depending on year). > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > Pete Masterson > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > aeonix1@ > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > Are there are common problems on PT's I should look out for? > > I > > > > > have an > > > > > FC and know a lot about them, but have zero hands-on > > experience > > > with a > > > > > PT. Anything I should pay special attention to outside of the > > > > > "normal" > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > |
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04-20-2007, 09:37
Post: #4
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Slobber tube - cheap fix for blowby
Greg, IMO Shane's plan is a good one. I had the exact same home-built
PVC catch system on my 83PT. as Shane pointed out, remember to vent the tube so there's no back pressure on the scavenging effect. With the PVC tube horizontally mounted under the trailer hitch assembly, the slobber tubes still hang down vertically. They are just routed somewhat backwards, just as they swing back in the wind when you are driving down the road. Worked good for me also. It wasn't cleaning the toad windshield as much as it was the burning smell of the oil that got into the toad radiator and then burned off when the radiator heated up. Mike Bulriss 1991 WB40 "Texas Minivan" San Antonio, TX --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor" > > Shane it sounds like a good plan. BUT, I fear that reengineering the > vertical path of the tubes with a horizontal turn will add the grave > possibility that crud will buildup and block the process. MikH posted > a link to an article which describes the Scavanging process on the 2 > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > > The engineers design engines to operate optimal at a given temp. > That temp is controlled by a specified thermostat and fan cycle. > WHen the engine is cold or run cold the tolerances are out of planned > specs and the crankcase gets internal pressures. If you hold the > crankcase pressure in it will come out the weakest spot which is > around the tin pan and weaker gaskets. The other paths will weep oil > dynamically even when op temp is reached > > I correct the drops of oil on my toad with windex and detail spray > > GregoryO'Connor > 94ptRomolandCa > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@> > wrote: > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > long piece of 4" PVC with end caps and a drain in the bottom. There > is > > a breather on the top to allow ventilation. It is usually 1/3 full > at > > each oil change- No more drips! > > > > Shane Fedeli > > Hershey, PA > > > > --- In WanderlodgeForum@yahoogroups.com, "ac7880" > wrote: > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > blowby was ending up on the tow car. On our trip we just > returend > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > milk > > > jug), stuffed some steel wool down into it, cut some vent holes > at > > > the top, and wired/duct taped it to the slobber tube. End of > blowby. > > > A 2 liter soda bottle should work also. > > > > > > Just returned home yesterday, and haven't checked the jug yet to > see > > > what it collected, but the tow car is clean. Should work for > > > radiator contamination prevention of blowby. > > > Dan > > > 94 BB BMC NM > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > tube attached to the left and right cylinder heads near the valve > > > covers which drop to road level and one large crankcase breather > tube > > > which hangs well below the engine pan. In my set up any oil > slobber > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > Leroy Eckert > > > > 1990 WB-40"Smoke N Mirrors" > > > > Niceville, FL > > > > > > > > ----- Original Message ----- > > > > From: Scott Forman > > > > To: WanderlodgeForum@yahoogroups.com > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > Scott > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > > > > > wrote: > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > dirt. > > > > > It's difficult to examine as shrouds and other appliances > get > > > in > > > > the > > > > > way. The area swept by the fan usually is clear, but the > > > > surrounding > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > feed > > > hot > > > > oil > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > warm > > > > > water from time to time) but can become a serious issue if > it > > > > causes > > > > > the engine to overheat. > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > engine > > > > can > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > or > > > 8v92 > > > > > (depending on year). > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > Pete Masterson > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > aeonix1@ > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > Are there are common problems on PT's I should look out > for? > > > I > > > > > > have an > > > > > > FC and know a lot about them, but have zero hands-on > > > experience > > > > with a > > > > > > PT. Anything I should pay special attention to outside of > the > > > > > > "normal" > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > |
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04-20-2007, 09:47
Post: #5
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Slobber tube - cheap fix for blowby
Hi Greg,
I placed the sump directly under the tubes' original placement. I just snipped off the bottom 6" and connected the tubes to barbed nipples that screw into the PVC sump and they seem to dump a good amount (1-2 qts) of sludge into the sump between oil changes. At most, they are 15 degrees off vertical and do not seem to have a problem draining. I did the modification when I bought the coach 3 yrs ago and have run this way for about 30K miles with no leaks elsewhere. The key is to keep the breather element on the sump clean with a shot of brakekleen now and then. Shane Fedeli 85PT40 Hershey, PA --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor" > > Shane it sounds like a good plan. BUT, I fear that reengineering the > vertical path of the tubes with a horizontal turn will add the grave > possibility that crud will buildup and block the process. MikH posted > a link to an article which describes the Scavanging process on the 2 > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > > The engineers design engines to operate optimal at a given temp. > That temp is controlled by a specified thermostat and fan cycle. > WHen the engine is cold or run cold the tolerances are out of planned > specs and the crankcase gets internal pressures. If you hold the > crankcase pressure in it will come out the weakest spot which is > around the tin pan and weaker gaskets. The other paths will weep oil > dynamically even when op temp is reached > > I correct the drops of oil on my toad with windex and detail spray > > GregoryO'Connor > 94ptRomolandCa > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@> > wrote: > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > long piece of 4" PVC with end caps and a drain in the bottom. There > is > > a breather on the top to allow ventilation. It is usually 1/3 full > at > > each oil change- No more drips! > > > > Shane Fedeli > > Hershey, PA > > > > --- In WanderlodgeForum@yahoogroups.com, "ac7880" > wrote: > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > blowby was ending up on the tow car. On our trip we just > returend > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > milk > > > jug), stuffed some steel wool down into it, cut some vent holes > at > > > the top, and wired/duct taped it to the slobber tube. End of > blowby. > > > A 2 liter soda bottle should work also. > > > > > > Just returned home yesterday, and haven't checked the jug yet to > see > > > what it collected, but the tow car is clean. Should work for > > > radiator contamination prevention of blowby. > > > Dan > > > 94 BB BMC NM > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > tube attached to the left and right cylinder heads near the valve > > > covers which drop to road level and one large crankcase breather > tube > > > which hangs well below the engine pan. In my set up any oil > slobber > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > Leroy Eckert > > > > 1990 WB-40"Smoke N Mirrors" > > > > Niceville, FL > > > > > > > > ----- Original Message ----- > > > > From: Scott Forman > > > > To: WanderlodgeForum@yahoogroups.com > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > Scott > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > > > > > wrote: > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > dirt. > > > > > It's difficult to examine as shrouds and other appliances > get > > > in > > > > the > > > > > way. The area swept by the fan usually is clear, but the > > > > surrounding > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > feed > > > hot > > > > oil > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > warm > > > > > water from time to time) but can become a serious issue if > it > > > > causes > > > > > the engine to overheat. > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > engine > > > > can > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > or > > > 8v92 > > > > > (depending on year). > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > Pete Masterson > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > aeonix1@ > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > Are there are common problems on PT's I should look out > for? > > > I > > > > > > have an > > > > > > FC and know a lot about them, but have zero hands-on > > > experience > > > > with a > > > > > > PT. Anything I should pay special attention to outside of > the > > > > > > "normal" > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > |
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04-20-2007, 12:35
Post: #6
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Slobber tube - cheap fix for blowby
Shane, Sounds like a good plan with a 4 inch open container. I wonder
if there is a way to cut a vent on the trailer hitch side of the pipe one inch below the bottom of the cut slobbertube. that would eliminate the chance of the catch basin from filling and blocking the discharge of the vertical slobbertube. Above the barb is where the scum may hook and buildup. If the sump hung independent of the tube???? The now and then service requirement is where I often fail. GregoryO'Connor 94ptRomolandCa --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@...> wrote: > > Hi Greg, > > I placed the sump directly under the tubes' original placement. I > just snipped off the bottom 6" and connected the tubes to barbed > nipples that screw into the PVC sump and they seem to dump a good > amount (1-2 qts) of sludge into the sump between oil changes. At most, > they are 15 degrees off vertical and do not seem to have a problem > draining. I did the modification when I bought the coach 3 yrs ago and > have run this way for about 30K miles with no leaks elsewhere. The key > is to keep the breather element on the sump clean with a shot of > brakekleen now and then. > > Shane Fedeli > 85PT40 > Hershey, PA > > --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor" > > > > > Shane it sounds like a good plan. BUT, I fear that reengineering the > > vertical path of the tubes with a horizontal turn will add the grave > > possibility that crud will buildup and block the process. MikH posted > > a link to an article which describes the Scavanging process on the 2 > > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > > > > The engineers design engines to operate optimal at a given temp. > > That temp is controlled by a specified thermostat and fan cycle. > > WHen the engine is cold or run cold the tolerances are out of planned > > specs and the crankcase gets internal pressures. If you hold the > > crankcase pressure in it will come out the weakest spot which is > > around the tin pan and weaker gaskets. The other paths will weep oil > > dynamically even when op temp is reached > > > > I correct the drops of oil on my toad with windex and detail spray > > > > GregoryO'Connor > > 94ptRomolandCa > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@> > > wrote: > > > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > > long piece of 4" PVC with end caps and a drain in the bottom. There > > is > > > a breather on the top to allow ventilation. It is usually 1/3 full > > at > > > each oil change- No more drips! > > > > > > Shane Fedeli > > > Hershey, PA > > > > > > --- In WanderlodgeForum@yahoogroups.com, "ac7880" > > wrote: > > > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > > blowby was ending up on the tow car. On our trip we just > > returend > > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > > milk > > > > jug), stuffed some steel wool down into it, cut some vent holes > > at > > > > the top, and wired/duct taped it to the slobber tube. End of > > blowby. > > > > A 2 liter soda bottle should work also. > > > > > > > > Just returned home yesterday, and haven't checked the jug yet to > > see > > > > what it collected, but the tow car is clean. Should work for > > > > radiator contamination prevention of blowby. > > > > Dan > > > > 94 BB BMC NM > > > > > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > > tube attached to the left and right cylinder heads near the valve > > > > covers which drop to road level and one large crankcase breather > > tube > > > > which hangs well below the engine pan. In my set up any oil > > slobber > > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > > > Leroy Eckert > > > > > 1990 WB-40"Smoke N Mirrors" > > > > > Niceville, FL > > > > > > > > > > ----- Original Message ----- > > > > > From: Scott Forman > > > > > To: WanderlodgeForum@yahoogroups.com > > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > > > Scott > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > > > > > > > wrote: > > > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > > dirt. > > > > > > It's difficult to examine as shrouds and other appliances > > get > > > > in > > > > > the > > > > > > way. The area swept by the fan usually is clear, but the > > > > > surrounding > > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > > feed > > > > hot > > > > > oil > > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > > warm > > > > > > water from time to time) but can become a serious issue if > > it > > > > > causes > > > > > > the engine to overheat. > > > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > > engine > > > > > can > > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > > or > > > > 8v92 > > > > > > (depending on year). > > > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > > > Pete Masterson > > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > > aeonix1@ > > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > > > Are there are common problems on PT's I should look out > > for? > > > > I > > > > > > > have an > > > > > > > FC and know a lot about them, but have zero hands-on > > > > experience > > > > > with a > > > > > > > PT. Anything I should pay special attention to outside of > > the > > > > > > > "normal" > > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > |
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04-20-2007, 12:37
Post: #7
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Slobber tube - cheap fix for blowby
Shane & Greg,
There used to be a DDA after market kit to catch the oil from the slobber tubes. They show up on eBay once in a while but are no longer available from DDA. Here is a link to a company in CA that makes a similar product. http://www.walkerairsep.com/product_detail.asp?id=565 Same type design as yours Shane. Your PVC tube system is what I am making for my PT40. Terry Neal Bozeman, MT 82PT40 6V92TA 74FC34 6V53T sfedeli3 wrote: > Hi Greg, > > I placed the sump directly under the tubes' original placement. I > just snipped off the bottom 6" and connected the tubes to barbed > nipples that screw into the PVC sump and they seem to dump a good > amount (1-2 qts) of sludge into the sump between oil changes. At most, > they are 15 degrees off vertical and do not seem to have a problem > draining. I did the modification when I bought the coach 3 yrs ago and > have run this way for about 30K miles with no leaks elsewhere. The key > is to keep the breather element on the sump clean with a shot of > brakekleen now and then. > > Shane Fedeli > 85PT40 > Hershey, PA > > --- In WanderlodgeForum@yahoogroups.com > > > > > > Shane it sounds like a good plan. BUT, I fear that reengineering the > > vertical path of the tubes with a horizontal turn will add the grave > > possibility that crud will buildup and block the process. MikH posted > > a link to an article which describes the Scavanging process on the 2 > > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > <http://www.yachtsurvey.com/comparing_die...es.htm#TOP> > > > > The engineers design engines to operate optimal at a given temp. > > That temp is controlled by a specified thermostat and fan cycle. > > WHen the engine is cold or run cold the tolerances are out of planned > > specs and the crankcase gets internal pressures. If you hold the > > crankcase pressure in it will come out the weakest spot which is > > around the tin pan and weaker gaskets. The other paths will weep oil > > dynamically even when op temp is reached > > > > I correct the drops of oil on my toad with windex and detail spray > > > > GregoryO'Connor > > 94ptRomolandCa > > --- In WanderlodgeForum@yahoogroups.com > > > wrote: > > > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > > long piece of 4" PVC with end caps and a drain in the bottom. There > > is > > > a breather on the top to allow ventilation. It is usually 1/3 full > > at > > > each oil change- No more drips! > > > > > > Shane Fedeli > > > Hershey, PA > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > wrote: > > > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > > blowby was ending up on the tow car. On our trip we just > > returend > > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > > milk > > > > jug), stuffed some steel wool down into it, cut some vent holes > > at > > > > the top, and wired/duct taped it to the slobber tube. End of > > blowby. > > > > A 2 liter soda bottle should work also. > > > > > > > > Just returned home yesterday, and haven't checked the jug yet to > > see > > > > what it collected, but the tow car is clean. Should work for > > > > radiator contamination prevention of blowby. > > > > Dan > > > > 94 BB BMC NM > > > > > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > > tube attached to the left and right cylinder heads near the valve > > > > covers which drop to road level and one large crankcase breather > > tube > > > > which hangs well below the engine pan. In my set up any oil > > slobber > > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > > > Leroy Eckert > > > > > 1990 WB-40"Smoke N Mirrors" > > > > > Niceville, FL > > > > > > > > > > ----- Original Message ----- > > > > > From: Scott Forman > > > > > To: WanderlodgeForum@yahoogroups.com > > > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > > > Scott > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > > > > > > wrote: > > > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > > dirt. > > > > > > It's difficult to examine as shrouds and other appliances > > get > > > > in > > > > > the > > > > > > way. The area swept by the fan usually is clear, but the > > > > > surrounding > > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > > feed > > > > hot > > > > > oil > > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > > warm > > > > > > water from time to time) but can become a serious issue if > > it > > > > > causes > > > > > > the engine to overheat. > > > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > > engine > > > > > can > > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > > or > > > > 8v92 > > > > > > (depending on year). > > > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > > > Pete Masterson > > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > > aeonix1@ > > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > > > Are there are common problems on PT's I should look out > > for? > > > > I > > > > > > > have an > > > > > > > FC and know a lot about them, but have zero hands-on > > > > experience > > > > > with a > > > > > > > PT. Anything I should pay special attention to outside of > > the > > > > > > > "normal" > > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] |
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04-20-2007, 12:39
Post: #8
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Slobber tube - cheap fix for blowby
Mike, I thought Texans like the smell of oil?
GregoryO'Connor 94ptRomolandCA --- In WanderlodgeForum@yahoogroups.com, "mbulriss" <mbulriss@...> wrote: > > Greg, IMO Shane's plan is a good one. I had the exact same home- built > PVC catch system on my 83PT. as Shane pointed out, remember to vent > the tube so there's no back pressure on the scavenging effect. With > the PVC tube horizontally mounted under the trailer hitch assembly, > the slobber tubes still hang down vertically. They are just routed > somewhat backwards, just as they swing back in the wind when you are > driving down the road. Worked good for me also. It wasn't cleaning > the toad windshield as much as it was the burning smell of the oil > that got into the toad radiator and then burned off when the radiator > heated up. > > Mike Bulriss > 1991 WB40 "Texas Minivan" > San Antonio, TX > > --- In WanderlodgeForum@yahoogroups.com, "Gregory OConnor" > > > > > Shane it sounds like a good plan. BUT, I fear that reengineering the > > vertical path of the tubes with a horizontal turn will add the grave > > possibility that crud will buildup and block the process. MikH posted > > a link to an article which describes the Scavanging process on the 2 > > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > > > > The engineers design engines to operate optimal at a given temp. > > That temp is controlled by a specified thermostat and fan cycle. > > WHen the engine is cold or run cold the tolerances are out of planned > > specs and the crankcase gets internal pressures. If you hold the > > crankcase pressure in it will come out the weakest spot which is > > around the tin pan and weaker gaskets. The other paths will weep oil > > dynamically even when op temp is reached > > > > I correct the drops of oil on my toad with windex and detail spray > > > > GregoryO'Connor > > 94ptRomolandCa > > --- In WanderlodgeForum@yahoogroups.com, "sfedeli3" <sfedeli3@> > > wrote: > > > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > > long piece of 4" PVC with end caps and a drain in the bottom. There > > is > > > a breather on the top to allow ventilation. It is usually 1/3 full > > at > > > each oil change- No more drips! > > > > > > Shane Fedeli > > > Hershey, PA > > > > > > --- In WanderlodgeForum@yahoogroups.com, "ac7880" > > wrote: > > > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > > blowby was ending up on the tow car. On our trip we just > > returend > > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > > milk > > > > jug), stuffed some steel wool down into it, cut some vent holes > > at > > > > the top, and wired/duct taped it to the slobber tube. End of > > blowby. > > > > A 2 liter soda bottle should work also. > > > > > > > > Just returned home yesterday, and haven't checked the jug yet to > > see > > > > what it collected, but the tow car is clean. Should work for > > > > radiator contamination prevention of blowby. > > > > Dan > > > > 94 BB BMC NM > > > > > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, "Leroy Eckert" > > > > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > > tube attached to the left and right cylinder heads near the valve > > > > covers which drop to road level and one large crankcase breather > > tube > > > > which hangs well below the engine pan. In my set up any oil > > slobber > > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > > > Leroy Eckert > > > > > 1990 WB-40"Smoke N Mirrors" > > > > > Niceville, FL > > > > > > > > > > ----- Original Message ----- > > > > > From: Scott Forman > > > > > To: WanderlodgeForum@yahoogroups.com > > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > > > Scott > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com, Pete Masterson > > > > > > > > > wrote: > > > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > > dirt. > > > > > > It's difficult to examine as shrouds and other appliances > > get > > > > in > > > > > the > > > > > > way. The area swept by the fan usually is clear, but the > > > > > surrounding > > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > > feed > > > > hot > > > > > oil > > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > > warm > > > > > > water from time to time) but can become a serious issue if > > it > > > > > causes > > > > > > the engine to overheat. > > > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > > engine > > > > > can > > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > > or > > > > 8v92 > > > > > > (depending on year). > > > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > > > Pete Masterson > > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > > aeonix1@ > > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > > > Are there are common problems on PT's I should look out > > for? > > > > I > > > > > > > have an > > > > > > > FC and know a lot about them, but have zero hands-on > > > > experience > > > > > with a > > > > > > > PT. Anything I should pay special attention to outside of > > the > > > > > > > "normal" > > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > |
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04-22-2007, 12:41
Post: #9
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Slobber tube - cheap fix for blowby
My 1985 PT40 DD 6V92 has the original DD airbox metal drain oil
catchers. I never have had oil on the jeep that I tow. tom warner 1985 PT 40 At 08:37 PM 4/20/2007, you wrote: >Shane & Greg, > >There used to be a DDA after market kit to catch the oil from the >slobber tubes. They show up on eBay once in a while but are no longer >available from DDA. Here is a link to a company in CA that makes a >similar product. > >http://www.walkerairsep.com/product_detail.asp?id=565 > >Same type design as yours Shane. Your PVC tube system is what I am >making for my PT40. > > >Terry Neal >Bozeman, MT >82PT40 6V92TA >74FC34 6V53T > > > >sfedeli3 wrote: > > > Hi Greg, > > > > I placed the sump directly under the tubes' original placement. I > > just snipped off the bottom 6" and connected the tubes to barbed > > nipples that screw into the PVC sump and they seem to dump a good > > amount (1-2 qts) of sludge into the sump between oil changes. At most, > > they are 15 degrees off vertical and do not seem to have a problem > > draining. I did the modification when I bought the coach 3 yrs ago and > > have run this way for about 30K miles with no leaks elsewhere. The key > > is to keep the breather element on the sump clean with a shot of > > brakekleen now and then. > > > > Shane Fedeli > > 85PT40 > > Hershey, PA > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > > > > > > Shane it sounds like a good plan. BUT, I fear that reengineering the > > > vertical path of the tubes with a horizontal turn will add the grave > > > possibility that crud will buildup and block the process. MikH posted > > > a link to an article which describes the Scavanging process on the 2 > > > cycle DDV92's. The Scavanging is blown out the Slobbertubes. > > > > > > http://www.yachtsurvey.com/comparing_die...es.htm#TOP > > <http://www.yachtsurvey.com/comparing_die...es.htm#TOP> > > > > > > The engineers design engines to operate optimal at a given temp. > > > That temp is controlled by a specified thermostat and fan cycle. > > > WHen the engine is cold or run cold the tolerances are out of planned > > > specs and the crankcase gets internal pressures. If you hold the > > > crankcase pressure in it will come out the weakest spot which is > > > around the tin pan and weaker gaskets. The other paths will weep oil > > > dynamically even when op temp is reached > > > > > > I correct the drops of oil on my toad with windex and detail spray > > > > > > GregoryO'Connor > > > 94ptRomolandCa > > > --- In WanderlodgeForum@yahoogroups.com > > > > > wrote: > > > > > > > > On my 85PT40, I routed the slobber tubes to a horizontally hung 30" > > > > long piece of 4" PVC with end caps and a drain in the bottom. There > > > is > > > > a breather on the top to allow ventilation. It is usually 1/3 full > > > at > > > > each oil change- No more drips! > > > > > > > > Shane Fedeli > > > > Hershey, PA > > > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > wrote: > > > > > > > > > > On my 94 Bluebird BMC I have one engine vent "slobber tube". The > > > > > blowby was ending up on the tow car. On our trip we just > > > returend > > > > > from, I used a empty 1 gallon distilled water jug (like a 1 gal > > > milk > > > > > jug), stuffed some steel wool down into it, cut some vent holes > > > at > > > > > the top, and wired/duct taped it to the slobber tube. End of > > > blowby. > > > > > A 2 liter soda bottle should work also. > > > > > > > > > > Just returned home yesterday, and haven't checked the jug yet to > > > see > > > > > what it collected, but the tow car is clean. Should work for > > > > > radiator contamination prevention of blowby. > > > > > Dan > > > > > 94 BB BMC NM > > > > > > > > > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > > > > > > > > > > > > > > > A part of the crankcase ventilation system. I my case one each > > > > > tube attached to the left and right cylinder heads near the valve > > > > > covers which drop to road level and one large crankcase breather > > > tube > > > > > which hangs well below the engine pan. In my set up any oil > > > slobber > > > > > hits the road. Hence, the buzz word "slobber tubes" > > > > > > > > > > > > Leroy Eckert > > > > > > 1990 WB-40"Smoke N Mirrors" > > > > > > Niceville, FL > > > > > > > > > > > > ----- Original Message ----- > > > > > > From: Scott Forman > > > > > > To: WanderlodgeForum@yahoogroups.com > > > > > > > > Sent: Wednesday, April 18, 2007 7:01 PM > > > > > > Subject: [WanderlodgeForum] Re: 86 PT38...any pitfalls? > > > > > > > > > > > > > > > > > > What is a "slobber tube"? Never heard that one.... > > > > > > > > > > > > Scott > > > > > > > > > > > > --- In WanderlodgeForum@yahoogroups.com > > > > > > > > > > > > > wrote: > > > > > > > > > > > > > > PTs have a tendency for the radiator to become clogged with > > > > > dirt. > > > > > > > It's difficult to examine as shrouds and other appliances > > > get > > > > > in > > > > > > the > > > > > > > way. The area swept by the fan usually is clear, but the > > > > > > surrounding > > > > > > > area can be clogged with oily-dirt. (The "slobber tubes" > > > feed > > > > > hot > > > > > > oil > > > > > > > vapor that mixes with dirt kicked up by the fan to clog the > > > > > > > radiator.) This is a maintenance item (wash out with sudsy, > > > > > warm > > > > > > > water from time to time) but can become a serious issue if > > > it > > > > > > causes > > > > > > > the engine to overheat. > > > > > > > > > > > > > > Most of the rest is standard 'bird stuff... Of course the > > > > > engine > > > > > > can > > > > > > > have some considerable differences -- cat 3208 vs DD 6v92 > > > or > > > > > 8v92 > > > > > > > (depending on year). > > > > > > > > > > > > > > You won't need a 'swing away' radiator! > > > > > > > > > > > > > > Pete Masterson > > > > > > > '95 Blue Bird Wanderlodge WBDA 42 > > > > > > > aeonix1@ > > > > > > > On the road at Johnson City Texas > > > > > > > > > > > > > > > > > > > > > > > > > > > > On Apr 18, 2007, at 5:38 PM, Scott Forman wrote: > > > > > > > > > > > > > > > Are there are common problems on PT's I should look out > > > for? > > > > > I > > > > > > > > have an > > > > > > > > FC and know a lot about them, but have zero hands-on > > > > > experience > > > > > > with a > > > > > > > > PT. Anything I should pay special attention to outside of > > > the > > > > > > > > "normal" > > > > > > > > things would be helpful. > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > > > > > > > > > > > > > > > > > > > > > > > > > >[Non-text portions of this message have been removed] > > > > >Yahoo! Groups Links > > > |
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