Home » Public Forums » GMCnet » Vapor Lock
| Vapor Lock [message #102794] |
Wed, 13 October 2010 11:44  |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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Senior Member |
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I've been pondering my recent vapor lock experience. I do have an one of JK's electric fuel pump/filter setups installed. Based on the success of in-tank fuel pumps and the impressive work of Emory Stora, I'm guessing that the problem in my case occurs due to fuel vaporization in the fuel hose between the tank and my JK fuel pump and that if I could deliver liquid gas to my JK fuel pump, I'd not have a problem. That got me to thinking about the ECS vent system between the tank and the canister which prevents pressure buildup in the gas tank. This system didn't exist in the old days. Gas caps formerly had a vent to allow air only to flow into the tank to prevent collapsing the tank. The result was that on hot days (when vapor lock occurs), there was pressure in the gas tank which raised the boiling point of the gasoline which means less possibility of vapor lock between the tank and the fuel pump. So, it seems that blocking off the vent from the tank to the canister might return us to the old days, allow pressure to build in the tank, and possibly reduce the vapor lock problem. Although this could increase emissions, I can only see this happening when the cap is removed from the tank so the increase would be slight. Capturing emissions from the carb would still occur which is probably the major culprit. Am I way off base here?
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: Vapor Lock [message #102798 is a reply to message #102794] |
Wed, 13 October 2010 11:57  |
fred v
Messages: 999
Registered: April 2006
Location: pensacola, fl.
Karma: 0
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Senior Member |
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the elec. pump is usually located forward of the tanks i think. so if you have vapor lock would it help to switch to the forward aux. tank and thus reduce the length of hose between the tank and pump?
Fred V
'77 Royale RB 455
P'cola, Fl
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| Re: [GMCnet] Vapor Lock [message #102809 is a reply to message #102794] |
Wed, 13 October 2010 13:47 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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I learned after this last 4,400 mile trip, that it is wiser to stop
for fuel more frequently to avoid the boiling problem in the tank.
I normallly drive till I have but few gallon of fuel. This tacktic
caused me to spend 10-20 minutes of trickeling in the fuel till the
tank cooled down to where I could let the pump shove fuel in on its
own.
We try to keep the hose from the tank as short as possible and pull it
over the frame then remount theselector valve on the outside of the
frame then to the large filter and the aux. pump.
This seems to do well 95% of the time.
On Wed, Oct 13, 2010 at 9:44 AM, Jack Christensen <captjack@sonic.net> wrote:
>
>
> I've been pondering my recent vapor lock experience. I do have an one of JK's electric fuel pump/filter setups installed. Based on the success of in-tank fuel pumps and the impressive work of Emory Stora, I'm guessing that the problem in my case occurs due to fuel vaporization in the fuel hose between the tank and my JK fuel pump and that if I could deliver liquid gas to my JK fuel pump, I'd not have a problem. That got me to thinking about the ECS vent system between the tank and the canister which prevents pressure buildup in the gas tank. This system didn't exist in the old days. Gas caps formerly had a vent to allow air only to flow into the tank to prevent collapsing the tank. The result was that on hot days (when vapor lock occurs), there was pressure in the gas tank which raised the boiling point of the gasoline which means less possibility of vapor lock between the tank and the fuel pump. So, it seems that blocking off the vent from the tank to the canister m
> ight return us to the old days, allow pressure to build in the tank, and possibly reduce the vapor lock problem. Although this could increase emissions, I can only see this happening when the cap is removed from the tank so the increase would be slight. Capturing emissions from the carb would still occur which is probably the major culprit. Am I way off base here?
> --
> Jack Christensen - K6ROW
> '76 Glenbrook/Clasco
> Sebastopol, CA
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Vapor Lock [message #102810 is a reply to message #102809] |
Wed, 13 October 2010 13:57 |
kelvin
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
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Senior Member |
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Almost to Redding on our way back to Eugene. It was hot enough that
we cranked up the roof air. The new Blazer overhead console said it was
95° but I don't know that I believe that. Maybe 90°
Guessing between 10-13 gallons left in the tanks. Hadn't switched to
AUX yet.
Hot enough for AC and the engine was running about 200°.
Clutch fan was working as expected. Just a little bit of belt squeal
when it was running.
Hadn't really started climbing the Siskyous yet but we were going up a bit.
Not even a hint of vapor lock.
Considering how much I hear about this I feel really lucky to have
avoided it so far.
Kelvin
> I learned after this last 4,400 mile trip, that it is wiser to stop
> for fuel more frequently to avoid the boiling problem in the tank.
> I normallly drive till I have but few gallon of fuel. This tacktic
> caused me to spend 10-20 minutes of trickeling in the fuel till the
> tank cooled down to where I could let the pump shove fuel in on its
> own.
> We try to keep the hose from the tank as short as possible and pull it
> over the frame then remount theselector valve on the outside of the
> frame then to the large filter and the aux. pump.
> This seems to do well 95% of the time.
>
> On Wed, Oct 13, 2010 at 9:44 AM, Jack Christensen<captjack@sonic.net> wrote:
>>
>> I've been pondering my recent vapor lock experience. I do have an one of JK's electric fuel pump/filter setups installed. Based on the success of in-tank fuel pumps and the impressive work of Emory Stora, I'm guessing that the problem in my case occurs due to fuel vaporization in the fuel hose between the tank and my JK fuel pump and that if I could deliver liquid gas to my JK fuel pump, I'd not have a problem. That got me to thinking about the ECS vent system between the tank and the canister which prevents pressure buildup in the gas tank. This system didn't exist in the old days. Gas caps formerly had a vent to allow air only to flow into the tank to prevent collapsing the tank. The result was that on hot days (when vapor lock occurs), there was pressure in the gas tank which raised the boiling point of the gasoline which means less possibility of vapor lock between the tank and the fuel pump. So, it seems that blocking off the vent from the tank to the canister m
>> ight return us to the old days, allow pressure to build in the tank, and possibly reduce the vapor lock problem. Although this could increase emissions, I can only see this happening when the cap is removed from the tank so the increase would be slight. Capturing emissions from the carb would still occur which is probably the major culprit. Am I way off base here?
>> --
>> Jack Christensen - K6ROW
>> '76 Glenbrook/Clasco
>> Sebastopol, CA
>> _______________________________________________
>> GMCnet mailing list
>> List Information and Subscription Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>
>
>
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| Re: Vapor Lock [message #102818 is a reply to message #102794] |
Wed, 13 October 2010 15:08 |
captjack
Messages: 271
Registered: February 2010
Location: Sebastopol, California
Karma: 1
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Senior Member |
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Reponding to Fred, I tried switching between tanks when I was having problems which really didn't do much to halt the vaporlock.
And to JimK. I had only driven about 125 miles on a full tank, so I certainly wasn't in the fumes area. I didn't mount my pump and filter outside the frame, however. I wasn't too happy with the idea of drilling holes in the frame. Perhaps a change in thinking is needed. Although, I've still not heard any comments on plugging the hose to the canister.
Jack Christensen - K6ROW,
'76 Glenbrook/Clasco - "The Silver Bullet",
Sebastopol, CA
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| Re: [GMCnet] Vapor Lock [message #102820 is a reply to message #102810] |
Wed, 13 October 2010 15:21 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Kevin, moment of truth is when you pull of the road and drive in town,
then you'll know.
On Wed, Oct 13, 2010 at 11:57 AM, Kelvin Dietz <kelvin@datsuns.com> wrote:
> Almost to Redding on our way back to Eugene. It was hot enough that
> we cranked up the roof air. The new Blazer overhead console said it was
> 95° but I don't know that I believe that. Maybe 90°
>
> Guessing between 10-13 gallons left in the tanks. Hadn't switched to
> AUX yet.
> Hot enough for AC and the engine was running about 200°.
> Clutch fan was working as expected. Just a little bit of belt squeal
> when it was running.
> Hadn't really started climbing the Siskyous yet but we were going up a bit.
> Not even a hint of vapor lock.
>
> Considering how much I hear about this I feel really lucky to have
> avoided it so far.
>
> Kelvin
>
>> I learned after this last 4,400 mile trip, that it is wiser to stop
>> for fuel more frequently to avoid the boiling problem in the tank.
>> I normallly drive till I have but few gallon of fuel. This tacktic
>> caused me to spend 10-20 minutes of trickeling in the fuel till the
>> tank cooled down to where I could let the pump shove fuel in on its
>> own.
>> We try to keep the hose from the tank as short as possible and pull it
>> over the frame then remount theselector valve on the outside of the
>> frame then to the large filter and the aux. pump.
>> This seems to do well 95% of the time.
>>
>> On Wed, Oct 13, 2010 at 9:44 AM, Jack Christensen<captjack@sonic.net> wrote:
>>>
>>> I've been pondering my recent vapor lock experience. I do have an one of JK's electric fuel pump/filter setups installed. Based on the success of in-tank fuel pumps and the impressive work of Emory Stora, I'm guessing that the problem in my case occurs due to fuel vaporization in the fuel hose between the tank and my JK fuel pump and that if I could deliver liquid gas to my JK fuel pump, I'd not have a problem. That got me to thinking about the ECS vent system between the tank and the canister which prevents pressure buildup in the gas tank. This system didn't exist in the old days. Gas caps formerly had a vent to allow air only to flow into the tank to prevent collapsing the tank. The result was that on hot days (when vapor lock occurs), there was pressure in the gas tank which raised the boiling point of the gasoline which means less possibility of vapor lock between the tank and the fuel pump. So, it seems that blocking off the vent from the tank to the canister m
>>> ight return us to the old days, allow pressure to build in the tank, and possibly reduce the vapor lock problem. Although this could increase emissions, I can only see this happening when the cap is removed from the tank so the increase would be slight. Capturing emissions from the carb would still occur which is probably the major culprit. Am I way off base here?
>>> --
>>> Jack Christensen - K6ROW
>>> '76 Glenbrook/Clasco
>>> Sebastopol, CA
>>> _______________________________________________
>>> GMCnet mailing list
>>> List Information and Subscription Options:
>>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>>>
>>
>>
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Vapor Lock [message #102821 is a reply to message #102820] |
Wed, 13 October 2010 15:28 |
kelvin
Messages: 608
Registered: February 2004
Location: Eugene, OR
Karma: 0
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Senior Member |
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> KeLvin, moment of truth is when you pull of the road and drive in
> town, then you'll know.
We went into Redding about 1.5 miles off of I-5 to a "Gas for Less".
Stupid GPS directions...
There was a good 7-8 blocks of surface streets and we sat at one stop
light for what seemed like forever. I was worried about it because that
is the only time when I do get a little stumble from the motor. Not
even a hiccup this time.
Again... I must be living right. Can't think of any reason I don't have
issues. E10 is pretty universal in Oregon and California. I'm sure I'd
have problems on fuel with higher ethanol content or driving in +100°
temps.
Kelvin
> > Almost to Redding on our way back to Eugene. It was hot enough
> > thatwe cranked up the roof air. The new Blazer overhead console
> > said it was 95° but I don't know that I believe that. Maybe 90°
> >
> > Guessing between 10-13 gallons left in the tanks. Hadn't switched
> > to AUX yet. Hot enough for AC and the engine was running about
> > 200°. Clutch fan was working as expected. Just a little bit of
> > belt squeal when it was running. Hadn't really started climbing the
> > Siskyous yet but we were going up a bit. Not even a hint of vapor
> > lock.
> >
> > Considering how much I hear about this I feel really lucky to have
> > avoided it so far.
> >
> > Kelvin
> >
> >> I learned after this last 4,400 mile trip, that it is wiser to
> >> stop for fuel more frequently to avoid the boiling problem in the
> >> tank. I normallly drive till I have but few gallon of fuel. This
> >> tacktic caused me to spend 10-20 minutes of trickeling in the
> >> fuel till the tank cooled down to where I could let the pump
> >> shove fuel in on its own. We try to keep the hose from the tank
> >> as short as possible and pull it over the frame then remount
> >> theselector valve on the outside of the frame then to the large
> >> filter and the aux. pump. This seems to do well 95% of the time.
> >>
> >> On Wed, Oct 13, 2010 at 9:44 AM, Jack
> >> Christensen<captjack@sonic.net> wrote:
> >>>
> >>> I've been pondering my recent vapor lock experience. I do have
> >>> an one of JK's electric fuel pump/filter setups installed.
> >>> Based on the success of in-tank fuel pumps and the impressive
> >>> work of Emory Stora, I'm guessing that the problem in my case
> >>> occurs due to fuel vaporization in the fuel hose between the
> >>> tank and my JK fuel pump and that if I could deliver liquid
> >>> gas to my JK fuel pump, I'd not have a problem. That got me to
> >>> thinking about the ECS vent system between the tank and the
> >>> canister which prevents pressure buildup in the gas tank.
> >>> This system didn't exist in the old days. Gas caps formerly
> >>> had a vent to allow air only to flow into the tank to prevent
> >>> collapsing the tank. The result was that on hot days (when
> >>> vapor lock occurs), there was pressure in the gas tank which
> >>> raised the boiling point of the gasoline which means less
> >>> possibility of vapor lock between the tank and the fuel pump.
> >>> So, it seems that blocking off the vent from the tank to the
> >>> canister m ight return us to the old days, allow pressure to
> >>> build in the tank, and possibly reduce the vapor lock problem.
> >>> Although this could increase emissions, I can only see this
> >>> happening when the cap is removed from the tank so the increase
> >>> would be slight. Capturing emissions from the carb would still
> >>> occur which is probably the major culprit. Am I way off base
> >>> here? -- Jack Christensen - K6ROW '76 Glenbrook/Clasco
> >>> Sebastopol, CA _______________________________________________
> >>> GMCnet mailing list List Information and Subscription Options:
> >>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >>>
> >>
> >>
> >
> >
> > _______________________________________________ GMCnet mailing
> > list List Information and Subscription Options:
> > http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> >
>
>
>
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| Re: Vapor Lock [message #102850 is a reply to message #102818] |
Wed, 13 October 2010 18:11 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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Jack;
I wouldn't plug that tank vent line ,not only would you have to worry about too much pressure in the tank you would also have a problem causing the tank to go into a vacuum as fuel was drawn out of it.
Roy
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: [GMCnet] Vapor Lock [message #102874 is a reply to message #102794] |
Wed, 13 October 2010 20:32 |
 |
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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G'day,
Well we're parked at the Lake Houston Marina in Humble, Texas. It's across
the street from where I store Double Trouble. Tomorrow I'll go get Helen's
suitcases from our garage so she can start packing.
I'm going to the local AutoZone to see if I can get a Timken 8794S rear
bearing seals made in Indonesia; those are the good ones. I must have
stopped in half a dozen AutoZones between DuQuoin and here and was only able
to find one. They all had the ones from Taiwan with the orange coating that
are bad. I need two more; one to install and one for my spare set of
bearings.
Now to the subject at hand; before we left the Coop this year Jim B's
mechanic, Jason, installed a 5-7 psi Facet electric fuel pump between the
outlet of the AUX tank and the selector valve. He ran one wire to the frame
and the second to the selector valve. On our trip whenever vapor lock reared
it's ugly head I would switch to Aux and voila, problem solved.
As far as I'm concerned, I'm done.
It should be noted that the following was done to the fuel system on Double
Trouble:
1) Both tanks dropped and cleaned by Ken Frey in 2008.
2) All fuel lines replaced with ethanol compatible lines by Ken Frey in
2008.
3) Small metal housed filter installed between the line that is attached to
the front cross member and the mechanical fuel pump inlet by Ken Frey in
2008.
4) Both tanks dropped at the Coop in 2009 and inspected by myself and Jason
- IMMACULATE inside; not a spot of rust anywhere!
5) In tank fuel inlet screens replaced at the Coop in 2009.
6) Fuel filter upstream of mechanical pump removed and blown through in 2009
- clean.
7) Insulated braided SS line installed when Holley Carb replaced with
QuadraJet at the Coop in 2009.
8) Facet pump installed as noted above - 2010.
9) Fuel filter upstream of mechanical pump removed and blown through in 2010
- clean.
I have made three tours so far in Double Trouble and have NEVER had any
problems with the fuel system.
Regards,
Rob M.
USAussie
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Vapor Lock [message #102881 is a reply to message #102874] |
Wed, 13 October 2010 20:37 |
k2gkk
Messages: 4452
Registered: November 2009
Karma: -8
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Senior Member |
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But from the sound of things, you may
be about to be having trouble with Helen
since she apparently hasn't gotten to do
much, if any touring in Double Trouble!
Maybe you ought to rename it TRIPLE Trouble???
(;<p)
* * * * * * * * * * * *
* D C "Mac" Macdonald *
* Amateur Radio K2GKK *
* USAF & FAA, Retired *
** Oklahoma City, OK **
* * * "Money Pit" * * *
* * ex-Palm Beach, 76 *
* * * * * * * * * * * *
----------------------------------------
> From: robmueller@iinet.net.au
> To: gmclist@temp.gmcnet.org
> Date: Wed, 13 Oct 2010 20:32:19 -0500
> Subject: Re: [GMCnet] Vapor Lock
>
> G'day,
>
> Well we're parked at the Lake Houston Marina in Humble, Texas. It's across
> the street from where I store Double Trouble. Tomorrow I'll go get Helen's
> suitcases from our garage so she can start packing.
>
> I'm going to the local AutoZone to see if I can get a Timken 8794S rear
> bearing seals made in Indonesia; those are the good ones. I must have
> stopped in half a dozen AutoZones between DuQuoin and here and was only able
> to find one. They all had the ones from Taiwan with the orange coating that
> are bad. I need two more; one to install and one for my spare set of
> bearings.
>
> Now to the subject at hand; before we left the Coop this year Jim B's
> mechanic, Jason, installed a 5-7 psi Facet electric fuel pump between the
> outlet of the AUX tank and the selector valve. He ran one wire to the frame
> and the second to the selector valve. On our trip whenever vapor lock reared
> it's ugly head I would switch to Aux and voila, problem solved.
>
> As far as I'm concerned, I'm done.
>
> It should be noted that the following was done to the fuel system on Double
> Trouble:
>
> 1) Both tanks dropped and cleaned by Ken Frey in 2008.
> 2) All fuel lines replaced with ethanol compatible lines by Ken Frey in
> 2008.
> 3) Small metal housed filter installed between the line that is attached to
> the front cross member and the mechanical fuel pump inlet by Ken Frey in
> 2008.
> 4) Both tanks dropped at the Coop in 2009 and inspected by myself and Jason
> - IMMACULATE inside; not a spot of rust anywhere!
> 5) In tank fuel inlet screens replaced at the Coop in 2009.
> 6) Fuel filter upstream of mechanical pump removed and blown through in 2009
> - clean.
> 7) Insulated braided SS line installed when Holley Carb replaced with
> QuadraJet at the Coop in 2009.
> 8) Facet pump installed as noted above - 2010.
> 9) Fuel filter upstream of mechanical pump removed and blown through in 2010
> - clean.
>
> I have made three tours so far in Double Trouble and have NEVER had any
> problems with the fuel system.
>
> Regards,
> Rob M.
> USAussie
>
>
>
>
> _______________________________________________
> GMCnet mailing list
> List Information and Subscription Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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| Re: [GMCnet] Vapor Lock [message #102889 is a reply to message #102881] |
Wed, 13 October 2010 21:03 |
|
USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Mac,
I have been kowtowing ever since we left the Coop in Orlando - FIVE WEEKS
LATE! Hopefully that has made up for making Helen wait around in a motel
room for FIVE WEEKS! :-O Get my drift!
She did enjoy herself and next year will be better. Basically we've got
Double Trouble configured the way we want interior wise and I've now gone
through all the mechanicals and know he condition of everything. The only
major project left is to take out the dash panel and see if I can't clean up
a lot of the wiring that the PO's have done over the past thirty odd years.
Hopefully John Sharpe will feel sorry for me and give me a hand as I am well
and truly "Electrically Challenged!"
Regards,
Rob M.
USAussie
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of D C *Mac* Macdonald
Sent: Wednesday, October 13, 2010 8:37 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Vapor Lock
But from the sound of things, you may
be about to be having trouble with Helen
since she apparently hasn't gotten to do
much, if any touring in Double Trouble!
Maybe you ought to rename it TRIPLE Trouble???
(;<p)
* * * * * * * * * * * *
* D C "Mac" Macdonald *
* Amateur Radio K2GKK *
* USAF & FAA, Retired *
** Oklahoma City, OK **
* * * "Money Pit" * * *
* * ex-Palm Beach, 76 *
* * * * * * * * * * * *
----------------------------------------
> From: robmueller@iinet.net.au
> To: gmclist@temp.gmcnet.org
> Date: Wed, 13 Oct 2010 20:32:19 -0500
> Subject: Re: [GMCnet] Vapor Lock
>
> G'day,
>
> Well we're parked at the Lake Houston Marina in Humble, Texas. It's across
> the street from where I store Double Trouble. Tomorrow I'll go get Helen's
> suitcases from our garage so she can start packing.
>
> I'm going to the local AutoZone to see if I can get a Timken 8794S rear
> bearing seals made in Indonesia; those are the good ones. I must have
> stopped in half a dozen AutoZones between DuQuoin and here and was only
able
> to find one. They all had the ones from Taiwan with the orange coating
that
> are bad. I need two more; one to install and one for my spare set of
> bearings.
>
> Now to the subject at hand; before we left the Coop this year Jim B's
> mechanic, Jason, installed a 5-7 psi Facet electric fuel pump between the
> outlet of the AUX tank and the selector valve. He ran one wire to the
frame
> and the second to the selector valve. On our trip whenever vapor lock
reared
> it's ugly head I would switch to Aux and voila, problem solved.
>
> As far as I'm concerned, I'm done.
>
> It should be noted that the following was done to the fuel system on
Double
> Trouble:
>
> 1) Both tanks dropped and cleaned by Ken Frey in 2008.
> 2) All fuel lines replaced with ethanol compatible lines by Ken Frey in
> 2008.
> 3) Small metal housed filter installed between the line that is attached
to
> the front cross member and the mechanical fuel pump inlet by Ken Frey in
> 2008.
> 4) Both tanks dropped at the Coop in 2009 and inspected by myself and
Jason
> - IMMACULATE inside; not a spot of rust anywhere!
> 5) In tank fuel inlet screens replaced at the Coop in 2009.
> 6) Fuel filter upstream of mechanical pump removed and blown through in
2009
> - clean.
> 7) Insulated braided SS line installed when Holley Carb replaced with
> QuadraJet at the Coop in 2009.
> 8) Facet pump installed as noted above - 2010.
> 9) Fuel filter upstream of mechanical pump removed and blown through in
2010
> - clean.
>
> I have made three tours so far in Double Trouble and have NEVER had any
> problems with the fuel system.
>
> Regards,
> Rob M.
> USAussie
>
>
>
>
> _______________________________________________
> GMCnet mailing list
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Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Vapor Lock [message #102912 is a reply to message #102909] |
Wed, 13 October 2010 22:55 |
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USAussie
Messages: 15912
Registered: July 2007
Location: Sydney, Australia
Karma: 6
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Senior Member |
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Joe,
Tell him NOPE! But he's got another one in Sydney that someone else did! ;-)
Regards,
Rob M.
USAussie
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of J A Holland
Sent: Wednesday, October 13, 2010 10:48 PM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] Vapor Lock
Rob M;
My Nephew's Grandson Just Made A Statement That I'd Like To Pass Along ~
"He's Not Going To Drive That Thing All Of The Way To Sydney, Is He ? " ~
LOL
~ Joe ~
--
Joe & Lavelle of ALEBAMY
Previously owned a '65 6cyl Cortez, '68 8cyl Cortez, 1973 GMC 26'
Canyonlands & Now a'78 Eleganza II 26' {"The Ole Gospel Ship"}
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GMCnet mailing list
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_______________________________________________
GMCnet mailing list
List Information and Subscription Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Regards,
Rob M. (USAussie)
The Pedantic Mechanic
Sydney, Australia
'75 Avion - AUS - The Blue Streak TZE365V100428
'75 Avion - USA - Double Trouble TZE365V100426
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| Re: [GMCnet] Vapor Lock [message #102918 is a reply to message #102818] |
Thu, 14 October 2010 00:06 |
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ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Jack,
Have you changed all the fuel hoses yet? A pump will pull air just as happily as fuel. Our modern fuel is death for old hoses.
Larry Davick
The Mystery Machine
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GMCnet mailing list
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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