Slobber tube - cheap fix for blowby

[Terry Neal]

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
> , "Gregory OConnor"
> wrote:
> >
> > 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
> , "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"
> > > > wrote:
> > > > >
> > > > > 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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