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Sucking Air - Printable Version

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+--- Thread: Sucking Air (/showthread.php?tid=6401)



Sucking Air - Leroy A. Eckert - 02-27-2008 08:34

I changed the filter on my Webasto, new seals etc. The thing fired
fine after starting the main engine to purge the lines. If it sits for
a couple of hours without firing it loses prime. No leaks, no air in
the site bowl and the check valve is good. I have taken the filter
housing apart 3 times and cannot find how this is happening.
Everything a ok before the filter change. Anyone with a Aquahot ot
Webasto had this problem?

Leroy Eckert
1990 WB-40 Smoke N Mirrors
Dahlonega, GA
Royale Conversion


Sucking Air - Gregory OConnor - 02-27-2008 15:20

I wipe all the seals and surfaces with red grease befor fitting
together (oilfilters too). There is a Hydronic Heat forum on yahoo
maybe they know of a issue
GregoryO'Connor
94ptRomolandCa

--- In WanderlodgeForum@yahoogroups.com, "Leroy A. Eckert"
wrote:
>
> I changed the filter on my Webasto, new seals etc. The thing fired
> fine after starting the main engine to purge the lines. If it sits
for
> a couple of hours without firing it loses prime. No leaks, no air
in
> the site bowl and the check valve is good. I have taken the filter
> housing apart 3 times and cannot find how this is happening.
> Everything a ok before the filter change. Anyone with a Aquahot ot
> Webasto had this problem?
>
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>


Sucking Air - Leroy Eckert - 02-28-2008 13:41

Thanks Greg.
This is the something else. I started the coach yesterday about 3pm, purged the line and the heater functioned properly all night long and finally did its final cycle for the day at about 10am. Temps in the low twenty's. The sun came out and kept the coach at about 70 all day. It tried to cycle about 6pm and no dice. It lost its prime again. The only common link is the filter change. I have removed the check valve in the intake line and tested it. I guess I will replace it and see what happens. The fuel is going somewhere and it isn't on the ground.

Leroy Eckert
1990 WB-40 Smoke N Mirrors
Dahlonega, GA
Royale Conversion

Gregory OConnor wrote:
I wipe all the seals and surfaces with red grease befor fitting
together (oilfilters too). There is a Hydronic Heat forum on yahoo
maybe they know of a issue
GregoryO'Connor
94ptRomolandCa

--- In "WanderlodgeForum%40yahoogroups.com", "Leroy A. Eckert"
...> wrote:
>
> I changed the filter on my Webasto, new seals etc. The thing fired
> fine after starting the main engine to purge the lines. If it sits
for
> a couple of hours without firing it loses prime. No leaks, no air
in
> the site bowl and the check valve is good. I have taken the filter
> housing apart 3 times and cannot find how this is happening.
> Everything a ok before the filter change. Anyone with a
Aquahot ot
> Webasto had this problem?
>
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>





Never miss a thing. Make Yahoo your homepage.


Sucking Air - Gregory OConnor - 02-28-2008 14:02

I dont know where the check valve is but could it be air getting in
the line between the check valve and the Tank? that will let the
fuel go back to the tank and air into the line??????

GregoryO'Connor
94ptRomolandCa

--- In WanderlodgeForum@yahoogroups.com, Leroy Eckert
wrote:
>
> Thanks Greg.
> This is the something else. I started the coach yesterday about
3pm, purged the line and the heater functioned properly all night
long and finally did its final cycle for the day at about 10am.
Temps in the low twenty's. The sun came out and kept the coach at
about 70 all day. It tried to cycle about 6pm and no dice. It lost
its prime again. The only common link is the filter change. I have
removed the check valve in the intake line and tested it. I guess I
will replace it and see what happens. The fuel is going somewhere
and it isn't on the ground.
>
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>
> Gregory OConnor
wrote: I wipe all the seals and
surfaces with red grease befor fitting
> together (oilfilters too). There is a Hydronic Heat forum on
yahoo
> maybe they know of a issue
> GregoryO'Connor
> 94ptRomolandCa
>
> --- In WanderlodgeForum@yahoogroups.com, "Leroy A. Eckert"
> wrote:
> >
> > I changed the filter on my Webasto, new seals etc. The thing
fired
> > fine after starting the main engine to purge the lines. If it
sits
> for
> > a couple of hours without firing it loses prime. No leaks, no
air
> in
> > the site bowl and the check valve is good. I have taken the
filter
> > housing apart 3 times and cannot find how this is happening.
> > Everything a ok before the filter change. Anyone with a Aquahot
ot
> > Webasto had this problem?
> >
> > Leroy Eckert
> > 1990 WB-40 Smoke N Mirrors
> > Dahlonega, GA
> > Royale Conversion
> >
>
>
>
>
>
>
> ---------------------------------
> Never miss a thing. Make Yahoo your homepage.
>


Sucking Air - pattypape - 02-29-2008 08:16

Leroy,

I would check that filter again, It could suck air , and still not
leak fuel.

Bill 88 FC Michigan

--- In WanderlodgeForum@yahoogroups.com, Leroy Eckert
wrote:
>
> Thanks Greg.
> This is the something else. I started the coach yesterday about
3pm, purged the line and the heater functioned properly all night
long and finally did its final cycle for the day at about 10am. Temps
in the low twenty's. The sun came out and kept the coach at about 70
all day. It tried to cycle about 6pm and no dice. It lost its prime
again. The only common link is the filter change. I have removed the
check valve in the intake line and tested it. I guess I will replace
it and see what happens. The fuel is going somewhere and it isn't on
the ground.
>
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>
> Gregory OConnor
wrote: I wipe all the seals and
surfaces with red grease befor fitting
> together (oilfilters too). There is a Hydronic Heat forum on
yahoo
> maybe they know of a issue
> GregoryO'Connor
> 94ptRomolandCa
>
> --- In WanderlodgeForum@yahoogroups.com, "Leroy A. Eckert"
> wrote:
> >
> > I changed the filter on my Webasto, new seals etc. The thing
fired
> > fine after starting the main engine to purge the lines. If it
sits
> for
> > a couple of hours without firing it loses prime. No leaks, no
air
> in
> > the site bowl and the check valve is good. I have taken the
filter
> > housing apart 3 times and cannot find how this is happening.
> > Everything a ok before the filter change. Anyone with a Aquahot
ot
> > Webasto had this problem?
> >
> > Leroy Eckert
> > 1990 WB-40 Smoke N Mirrors
> > Dahlonega, GA
> > Royale Conversion
> >
>
>
>
>
>
>
> ---------------------------------
> Never miss a thing. Make Yahoo your homepage.
>


Sucking Air - erniecarpet@... - 03-08-2008 05:58



Leroy, that is a pretty inexpensive piece of equipment to run. Wish my propane was as efficient.
Ernie Ekberg
83PT40
Livingston, Montana
watching the snow melt!!






Sucking Air - Leroy A. Eckert - 03-08-2008 10:53

This is a follow up to the problem, sucking air. Thanks to all who
posted their ideas. Your are welcome to comment on this post also.
I changed the Webasto fuel filter last month and concluded that it was
sucking air at the filter or the check valve was bad because after the
change it would lose prime. I took it apart several times with out
success.
I started this winter with about one third tank of fuel.(100gal) I
should have filled it but did not. Anyway, the low fuel light came on
so I put 120 gallons of fuel in on Friday. That got me to one half
tank, or 150 gal. My gauge is fairly accurate. That means over a 3.5
month period the Webasto used about 70 gallons of fuel or about .66
gallons per day. About $65.00 per month in terms of dollars.
Now to the point. After adding the fuel the Webasto does not lose
prime any longer. The intake line for the Webasto T's off the intake
line for the main Racor filter with appropriate check valves. The
Wabasto filter is higher than the main Racor and the intake line from
the main fuel tank. Either the filter fixed itself or the pressure
created by more fuel in the main tank fixed the problem.
Comments.
Leroy Eckert
1990 WB-40 Smoke N Mirrors
Dahlonega, GA
Royale Conversion


Sucking Air - Leroy Eckert - 03-08-2008 11:32

I know, I just spoke with a friend who operates an SOB and he is spending almost twice that at similar temps.
Leroy Eckert
1990 WB-40 Smoke N Mirrors
Dahlonega, GA
Royale Conversion


erniecarpet@... wrote:
Leroy, that is a pretty inexpensive piece of equipment to run. Wish my propane was as efficient.
Ernie Ekberg
83PT40
Livingston, Montana
watching the snow
melt!!







Never miss a thing. Make Yahoo your homepage.


Sucking Air - Gregory OConnor - 03-09-2008 14:20

Maybe the pickup in the tank has a pin hole above the low fuel level
and the new full fuel level and both filters get air but the detroit
filter gets filled up quick when started because the injector cooler
path purges that filter from being air locked??????

an elevation issue with the filters should not matter. the only
pressure thing would be the static 1 psi per foot floating the check
valve open on the Wabasto path???????? If that check valve is spring
loaded it should not matter if the check valve is a heavy ball only,
it should stand up vertical.

I worked on Pick place for one of your old neighbors yesterday and
today. moved 1,200 yards on a 3/4 acre slope. I was going to look
for your old house on W.spur to see if it was the one I looked at
in '90 but didnt know if I could turn my rig at the deadend?
GregoryO'Connor
94ptRomolandCa


--- In WanderlodgeForum@yahoogroups.com, "Leroy A. Eckert"
wrote:
>
> This is a follow up to the problem, sucking air. Thanks to all who
> posted their ideas. Your are welcome to comment on this post also.
> I changed the Webasto fuel filter last month and concluded that it
was
> sucking air at the filter or the check valve was bad because after
the
> change it would lose prime. I took it apart several times with out
> success.
> I started this winter with about one third tank of fuel.(100gal) I
> should have filled it but did not. Anyway, the low fuel light came
on
> so I put 120 gallons of fuel in on Friday. That got me to one half
> tank, or 150 gal. My gauge is fairly accurate. That means over a
3.5
> month period the Webasto used about 70 gallons of fuel or about .66
> gallons per day. About $65.00 per month in terms of dollars.
> Now to the point. After adding the fuel the Webasto does not lose
> prime any longer. The intake line for the Webasto T's off the
intake
> line for the main Racor filter with appropriate check valves. The
> Wabasto filter is higher than the main Racor and the intake line
from
> the main fuel tank. Either the filter fixed itself or the pressure
> created by more fuel in the main tank fixed the problem.
> Comments.
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>


Sucking Air - Leroy Eckert - 03-09-2008 14:40

Greg; I don't know really. I turned it on two days ago because it was to get cold, worked as advertised. It snowed all day yesterday, down to 21 last night, 55 today to be 27 tonight. It came on and worked fine about one hour ago after sitting dormant all day. My theory is it's like the ocean. The deeper your go the more it hurts you ears until death. Perhaps, the extra fuel provides more static pressure in the inlet line. I did not start the main engine.
My old home on Whispering Spur is the second home on the right. When I was out there in July-August I could hardly find the entry because of the trees. The top of the street used to have a circle turn around. I sold it to the dude that chopped his mommas head off to preserve it for the Cryonic Society. That's no B/S. I did not know it at the time. I became friends with him until I found that out. I high tailed it. I have looked a little closer at friends since then. bbbbbaahlol,lol When you get time I will tell you how
I found out.

Leroy Eckert
1990 WB-40 Smoke N Mirrors
Dahlonega, GA
Royale Conversion

Gregory OConnor wrote:
Maybe the pickup in the tank has a pin hole above the low fuel level
and the new full fuel level and both filters get air but the detroit
filter gets filled up quick when started because the injector cooler
path purges that filter from being air locked??????

an elevation issue with the filters should not matter. the only
pressure thing would be the static 1 psi per foot floating the check

valve open on the Wabasto path???????? If that check valve is spring
loaded it should not matter if the check valve is a heavy ball only,
it should stand up vertical.

I worked on Pick place for one of your old neighbors yesterday and
today. moved 1,200 yards on a 3/4 acre slope. I was going to look
for your old house on W.spur to see if it was the one I looked at
in '90 but didnt know if I could turn my rig at the deadend?
GregoryO'Connor
94ptRomolandCa

--- In "WanderlodgeForum%40yahoogroups.com", "Leroy A. Eckert"
...> wrote:
>
> This is a follow up to the problem, sucking air. Thanks to all who
> posted their ideas. Your are welcome to comment on this post also.
> I changed the Webasto fuel filter last month and concluded that it
was
> sucking air at the filter or the check valve was
bad because after
the
> change it would lose prime. I took it apart several times with out
> success.
> I started this winter with about one third tank of fuel.(100gal) I
> should have filled it but did not. Anyway, the low fuel light came
on
> so I put 120 gallons of fuel in on Friday. That got me to one half
> tank, or 150 gal. My gauge is fairly accurate. That means over a
3.5
> month period the Webasto used about 70 gallons of fuel or about .66
> gallons per day. About $65.00 per month in terms of dollars.
> Now to the point. After adding the fuel the Webasto does not lose
> prime any longer. The intake line for the Webasto T's off the
intake
> line for the main Racor filter with appropriate check valves. The
> Wabasto filter is higher than the main Racor and the intake line
from
> the main fuel tank. Either the filter fixed itself or the pressure

> created by more fuel in the main tank fixed the problem.
> Comments.
> Leroy Eckert
> 1990 WB-40 Smoke N Mirrors
> Dahlonega, GA
> Royale Conversion
>





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