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More pump gas trouble !
#1475966
07/29/13 03:45 PM
07/29/13 03:45 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
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Balt. Md
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I was cruising down the road today at about 55 mph on my way home from my brothers house which is in Elkton Md and I live in Parkville which is about a 45 mile drive. Temp was about 85 and all the sudden the car died. Fuel pump got real quiet and I could not hardly hear it with the key on eng off. This has happened before when the fuel boiled in the carb so I wait about 3 or 4 minutes and then the pump starts making its normal noise so I hold it on the floor and the car starts and runs fine. I drive about 5 miles with the electric fan off so it wont throw more heat at the carb as it was running good at 185 on just the normal eng mechanical stock type fan. I go to 7-11 and fill the cool can with ice and drove the next 30 some miles home with no problems. It fooled me as the eng was only running about 185 but yet the carb got hot enough to boil the cheap pump fuel.  Its the first time this year I have had any trouble. I built this to run on pump so I could pull in any gas station and get gas. I have a few of these gel ice packs so my plan is to keep a few of them in my small cooler on ice in my trunk so if I get stuck on a hot day I will just open my trunk and put one of the ice packs in my cool can. It seem to be like going back to the 70's with a cool can but it helps keep the fuel cooler which is important if you run this cheap pump gas with to much ethanal in it. As long as I keep the fuel cool with the cool can it is fine. Cant think of much else to do other then ice in the cool can as I already have a heat shield and I use a 1" phenolic spacer. The worst thing is the eng is not running to hot when this happenes as it just seems to be holding alot of heat under the hood making the carb bowls to hot to touch. I really dont want to have a cool can on my car as I stopped using them in the 70's at the race track but the cool can seems to be one fix that does work if you run pump gas. I hate to pay over $10. dollars a gallon just to run race fuel in my street car. Oh and I had some kid in a Suburo WRX try to race me from a 60 mph roll cruising down the road. I only had room for a quick burst just to show him that by just nailing the gas and leaving the car in high gear the old muscle will pull away from his turbo car. Course we never went over about 75 mph as I am sure that turbo car has a bit more top end then I do with my gearing.  Ron
Last edited by 383man; 07/29/13 03:47 PM.
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Re: More pump gas trouble !
[Re: 383man]
#1475967
07/29/13 03:54 PM
07/29/13 03:54 PM
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Joined: Feb 2005
Posts: 20,151
PA.
pittsburghracer
"Little"John
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"Little"John
Joined: Feb 2005
Posts: 20,151
PA.
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In my many years of driving and living in Pa I got BAD gas 3 times in my life. Once was at my local Amico gas dealer and 2 times it happened between the Bay Bridge and Ocean City in Md. Do they check their gas very often in that state?
1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27
Livin and lovin life one day at a time
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Re: More pump gas trouble !
[Re: pittsburghracer]
#1475969
07/29/13 04:01 PM
07/29/13 04:01 PM
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Joined: Jun 2006
Posts: 5,159
CT
GTX MATT
master
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master
Joined: Jun 2006
Posts: 5,159
CT
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Hey Ron, What about running a 160 stat and/or wrapping your headers to keep temps down? It sucks, they keep changing things more and more because their research shows stuff to be backwards compatible, but it isn't. 
Now I need to pin those needles, got to feel that heat
Hear my motor screamin while I'm tearin up the street
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Re: More pump gas trouble !
[Re: tubtar]
#1475972
07/29/13 04:47 PM
07/29/13 04:47 PM
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Joined: Feb 2011
Posts: 4,302
Nebraska
72Swinger
master
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master
Joined: Feb 2011
Posts: 4,302
Nebraska
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Have you tried or do you use a wood/phenolic carb spacer? I've always ran a 1/2" wood laminate spacer and it does help alot.
Mopar to the bone!!!
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Re: More pump gas trouble !
[Re: 72Swinger]
#1475973
07/29/13 04:56 PM
07/29/13 04:56 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
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Joined: Jan 2003
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Balt. Md
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I actually use a phenolic spacer but I have heard the wooden one could be better. So I might try and go to a wooden one. I have also thought about going with a return line. I mean I have run Holley pumps and deadhead systems since 1974 and never had a problem. But we had much better pump gas until now also. I was thinking about taking my filler neck out and drilling a hole in it and then braze a nipple on it so I can make a return line setup as I have the regulator for a return line. I use the stock gas tank and thats why I was thinking of removing my filler neck so I could wash it down with water and then drill and braze it for a return line nipple as I surely wont drill on the tank as I would have to remove the stock tank to put a return line nipple in it. It should work fine if I put it in the filler neck down low where the filler neck goes into the stock tank. But until then I will be putting ice packs and ice cubes in the cool can on hot days. Its funny as I have been out on hotter more humid days this year with no trouble but I had not gone 40 some miles as most were cruises within 10 miles. Ron
Last edited by 383man; 07/29/13 04:57 PM.
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Re: More pump gas trouble !
[Re: 72Swinger]
#1475974
07/29/13 04:58 PM
07/29/13 04:58 PM
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Joined: Jun 2003
Posts: 9,225
Charleston
sixpackgut
Drag Week Mod Champion
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Drag Week Mod Champion
Joined: Jun 2003
Posts: 9,225
Charleston
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a return style fuel system is the only sure fire way to cure it. I have tried everything many years ago and what spawned my obsession with tunnel rams
Gen 3 power 6.22@110, 9.85@135
Follow @g3hemiswap on instagram
performance only racing, CRT, ultimate converter, superior design concepts, ThumperCarbs
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Re: More pump gas trouble !
[Re: 383man]
#1475976
07/29/13 05:11 PM
07/29/13 05:11 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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At 55 mph you are moving enough fuel so it shouldnt be boiling... you might want to look at the fuel line routing and see if its in contact with the block or any other heat source.. when I worked on the fuel boiling issue on production Chrysler cars, we would see it boil out the bowls and dump raw fuel down the intake while in a hot soak(engine off) and as soon as the engine fire up and the driver would try a hard acceleration it would stumble and/or die...and after about 20 to 30 seconds it got enough fuel passing into the bowls to cool them off so it wouldnt boil it.. then it drove fine... so driving at 55 it shouldnt have been the boiling issue BUT you could have a pump issue... do you run a return line with a vapor separator near the carb 
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Re: More pump gas trouble !
[Re: 383man]
#1475977
07/29/13 05:18 PM
07/29/13 05:18 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
Its definetly the fuel boiling as it has happened to a number of cars around here and I saw the fuel boiling out the vents. When it happens you have to hold the pedal on the floor to start it just like starting a flooded vehicle. Never had this problem until last year. Its the pump gas fuel they have around here. It would be cool if I can figure out how to keep the under hood temps down. I really did not want to rap my headers but it may help as suggested. Ron
If you run a electric fan you can set it up to run
after you shut down the engine.. we had to do this
on the production cars... fan is on a timer that ran
about 8 minutes to blow the under hood heat out during
the highest temp times after the engine is shut off..
OR you can put louvers in the hood to let heat out
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Re: More pump gas trouble !
[Re: 383man]
#1475978
07/29/13 05:30 PM
07/29/13 05:30 PM
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Joined: Jan 2003
Posts: 8,018
Tulsa OK
Bad340fish
master
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master
Joined: Jan 2003
Posts: 8,018
Tulsa OK
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It doesn't take much airflow to help out with vapor lock. My radiator sits back from the core support about 1" because its a crappy universal deal. I sealed that gap up last year before drag week and it helped a small cooling problem I had but caused a vapor lock. By opening just the top gap up it allowed enough air to the carb to keep the vapor lock out and fix my highway cooling problem. Its funny how much air moves through that small gap, my air filter had bugs and crap on the front after drag week last year, my car doesn't have a scoop.
68 Barracuda Formula S 340
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Re: More pump gas trouble !
[Re: MR_P_BODY]
#1475983
07/29/13 06:42 PM
07/29/13 06:42 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
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Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Quote:
Its definetly the fuel boiling as it has happened to a number of cars around here and I saw the fuel boiling out the vents. When it happens you have to hold the pedal on the floor to start it just like starting a flooded vehicle. Never had this problem until last year. Its the pump gas fuel they have around here. It would be cool if I can figure out how to keep the under hood temps down. I really did not want to rap my headers but it may help as suggested. Ron
If you run a electric fan you can set it up to run
after you shut down the engine.. we had to do this
on the production cars... fan is on a timer that ran
about 8 minutes to blow the under hood heat out during
the highest temp times after the engine is shut off..
OR you can put louvers in the hood to let heat out
I worked at a Dodge dealer when we had the front drive Chargers and Omni's with the fans that ran after the eng was shut down. Boy did we replace alot of batteries back then and fan relay temp sensors when they would stick and the fan would run until the battery went dead. So many custumers would complain that something was wrong with their fan as they did not know the fan was supossed to run after the key was turned off at certain temps. Ron
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Re: More pump gas trouble !
[Re: 383man]
#1475986
07/29/13 06:54 PM
07/29/13 06:54 PM
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Joined: Apr 2012
Posts: 18,880
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RSNOMO
Moparts Torchbearer
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Moparts Torchbearer
Joined: Apr 2012
Posts: 18,880
-
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Quote:
I have heard the pump fuel will be getting even worse for our carbureted muscle cars.
In these parts, ONE of the problems lies in the fact that you can't trust what the pump says...
Random testing has shown ethanol concentrations to be as high as 35%...
Sta-Bil, and a good shot of 110 has worked well...
So far...
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Re: More pump gas trouble !
[Re: CHAPPER]
#1475991
07/29/13 07:51 PM
07/29/13 07:51 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
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Joined: Jan 2003
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Balt. Md
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The fuel line is not near the header as right below where you see the fuel line on the pass side fenderwell is where it comes thru the inner fenderwell as it runs up by the rocker panel and I drilled a hole for it to come thru the inner fenderwell. It does not run up along side the header tubes. I put it like that to keep it away from the headers. My buddies 65 does the same thing but his fuel line is closer to his headers I believe. It did it last year without the heat shield but I had the phenolic spacer on it then. So basically the shield made no difference. Ron
Last edited by 383man; 07/29/13 07:52 PM.
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Re: More pump gas trouble !
[Re: ademon]
#1475995
07/29/13 10:49 PM
07/29/13 10:49 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
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Balt. Md
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I kept the line outside by the rocker until it comes thru the fenderwell. I really did not want to run the fuel line lower along the frame by the control arms as thats why I bring it in the eng bay thru the pass inner fenderwell. I had to add line of course when I put a coolcan in it. I think what I will do is insulate (cover) the fuel line under the hood to the coolcan and try to keep that part of the line under the hood cooler. Then cruise around on the smaller air cleaner to let alot of the heat rise away from the carb and maybe even raise the back of the hood a tad to let some heat out. That might help enough and I think I will add a few gallons of race gas every other tank or two. I really dont take alot of long trips to often but it is 45 miles to drive to the track and I like driving it to the track. And most of the time I go racing its a bit cooler out as I hate racing when its real hot out. But I also like to drive it the 90 miles to Carlisle in July and its usually very hot in July like today. I will insulate the fuel line under the hood real well and then throw a gel ice pack in the coolcan and try another 45 mile or more trip. I will have a cooler with plenty of ice and ice packs. And maybe adding some race fuel every other tank will help some also. Thanks for the replies. Ron
Last edited by 383man; 07/29/13 10:59 PM.
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Re: More pump gas trouble !
[Re: ademon]
#1475996
07/29/13 10:54 PM
07/29/13 10:54 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
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Quote:
Maybe I'm seeing it wrong ( on my phone) but one pic showed the fuel filter on the inner fender with a lot of line, The second pic shows the filter next to the distributor. At any rate that's a lot of line up high in the engine bay, my RR and demon run low along the front frame rail then up to the pump to the front of the engine. I would route it the same way even with the electric pump
Well I felt that low along the frame rail would have the line closer to the headers ?? At least thats why I thought I would do it the way I did to try and keep the line away from the header tubes. Then I though about the fuel line on the outside of the frame rail but I was concerned about the being that close to the control arms on the outer side of the frame rail. Thats why I did it like I did and it has worked good from 2006 until last year when the pump around here got worse. So I will take all the advise hear and decide what I think will be best.  Ron
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Re: More pump gas trouble !
[Re: sixpackgut]
#1475997
07/30/13 09:37 AM
07/30/13 09:37 AM
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Joined: Jul 2006
Posts: 528
N.W. Indiana
DblOJoe
mopar
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mopar
Joined: Jul 2006
Posts: 528
N.W. Indiana
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Quote:
a return style fuel system is the only sure fire way to cure it. I have tried everything many years ago and what spawned my obsession with tunnel rams
 I fought the same problem for a while and went to a return setup and never had any problems again.
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Re: More pump gas trouble !
[Re: 383man]
#1475998
07/30/13 10:14 AM
07/30/13 10:14 AM
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Joined: Jan 2003
Posts: 1,544
CT
mrrandyj
pro stock
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pro stock
Joined: Jan 2003
Posts: 1,544
CT
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Quote:
Fuel pump got real quiet and I could not hardly hear it with the key on eng off. so I wait about 3 or 4 minutes and then the pump starts making its normal noise so I hold it on the floor and the car starts and runs fine.
Are you sure the problem isn't your fuel pump? I have seen this problem on several occasions, especially with Holley Blue and Red fuel pumps. They quit pumping when they get hot, but after a few minutes of cooling off everything is ok.
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Re: More pump gas trouble !
[Re: sixpackgut]
#1475999
07/30/13 10:18 AM
07/30/13 10:18 AM
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Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
roadhazard
master
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master
Joined: Apr 2006
Posts: 3,675
Akron, Ohio U.S.A.
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Quote:
a return style fuel system is the only sure fire way to cure it. I have tried everything many years ago and what spawned my obsession with tunnel rams
You always have a constant supply of cool fuel running through the line. IMO this will also be easier on your fuel pump over a dead headed system.
And yes I would put some insulation sleeve over your fuel line.
Here's my system. I can make a pass, drive back to the pits @ 200* and up. Pull the hood off and park my hand on the carb for however long I want 
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Re: More pump gas trouble !
[Re: 383man]
#1476000
07/30/13 10:30 AM
07/30/13 10:30 AM
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Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
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Quote:
Quote:
Maybe I'm seeing it wrong ( on my phone) but one pic showed the fuel filter on the inner fender with a lot of line, The second pic shows the filter next to the distributor. At any rate that's a lot of line up high in the engine bay, my RR and demon run low along the front frame rail then up to the pump to the front of the engine. I would route it the same way even with the electric pump
Well I felt that low along the frame rail would have the line closer to the headers ?? At least thats why I thought I would do it the way I did to try and keep the line away from the header tubes. Then I though about the fuel line on the outside of the frame rail but I was concerned about the being that close to the control arms on the outer side of the frame rail. Thats why I did it like I did and it has worked good from 2006 until last year when the pump around here got worse. So I will take all the advise hear and decide what I think will be best. Ron
Ron , Heat RISES , so having the line and the filter , mounted the way you do is causing it to get all the heat radiating off the header. I'd put it down low and insulate it , plus put in a return line off your regulator.
where is your cool can mounted ?
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Re: More pump gas trouble !
[Re: fullmetaljacket]
#1476002
07/30/13 11:26 AM
07/30/13 11:26 AM
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Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,351
Marion, South Carolina [><]
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I went to a return style system a few years ago due to issues similar to your's w/ pump gas. Made a huge difference.
Back when I was playing w/ different intake manifolds and spacers, the wooden 1" carb spacer I'd been running is a big help also. Didn't realize how much until I drove around one time w/o it and heard fuel boiling out the vents when I got back home and shut the car off.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: More pump gas trouble !
[Re: mrrandyj]
#1476003
07/30/13 12:52 PM
07/30/13 12:52 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Quote:
Fuel pump got real quiet and I could not hardly hear it with the key on eng off. so I wait about 3 or 4 minutes and then the pump starts making its normal noise so I hold it on the floor and the car starts and runs fine.
Are you sure the problem isn't your fuel pump? I have seen this problem on several occasions, especially with Holley Blue and Red fuel pumps. They quit pumping when they get hot, but after a few minutes of cooling off everything is ok.
No as I have had 3 different fuel pumps on it the last year or so and it did it with all of them. Ron
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Re: More pump gas trouble !
[Re: JohnRR]
#1476005
07/30/13 01:09 PM
07/30/13 01:09 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Quote:
Quote:
Maybe I'm seeing it wrong ( on my phone) but one pic showed the fuel filter on the inner fender with a lot of line, The second pic shows the filter next to the distributor. At any rate that's a lot of line up high in the engine bay, my RR and demon run low along the front frame rail then up to the pump to the front of the engine. I would route it the same way even with the electric pump
Well I felt that low along the frame rail would have the line closer to the headers ?? At least thats why I thought I would do it the way I did to try and keep the line away from the header tubes. Then I though about the fuel line on the outside of the frame rail but I was concerned about the being that close to the control arms on the outer side of the frame rail. Thats why I did it like I did and it has worked good from 2006 until last year when the pump around here got worse. So I will take all the advise hear and decide what I think will be best. Ron
Ron , Heat RISES , so having the line and the filter , mounted the way you do is causing it to get all the heat radiating off the header. I'd put it down low and insulate it , plus put in a return line off your regulator.
where is your cool can mounted ?
I was concerned that down low would be to close to the headers unless I ran it on the outside of the frame rail but I did not want to run the fuel line outside the framerail up front. I am going to try and insulate the entire fuel line under the hood as my buddy is a comercial AC man and can get me some real good stuff to insulate the line so I plan to try that first before I move the line. The cool can is on the front core support as its about the only place I could mount it. It is close to the rad which I dont care for but I had the problem before I put it on last summer and it does run fine with ice or an ice pack in the cool can. But the ice melts much faster then the ice pack cools off and it is a bit of a pain to keep putting an ice pack in it. Course it does fix the problem. I went to a show last summer thats in PA and is about a 40 mile run so I put an ice pack in the cool can when I left my house and later that night before I left the show I pulled my other ice pack from the small cooler in my trunk and put it in the cool can. It worked good as I had no problems that day but I found a few other times I wanted to do that I found that I forgot to change the ice pack before I left. Luckily it was not to bad a day and it was getting dark as I had no problems then. The cool can works but it can be a pain remembering to put the ice pack in it. Ron
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Re: More pump gas trouble !
[Re: 383man]
#1476007
07/30/13 01:58 PM
07/30/13 01:58 PM
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Joined: Jul 2004
Posts: 19,317
State of confusion
Thumperdart
I Live Here
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I Live Here
Joined: Jul 2004
Posts: 19,317
State of confusion
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What pump r u runnin now............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: More pump gas trouble !
[Re: roadhazard]
#1476011
07/30/13 03:56 PM
07/30/13 03:56 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I prefer to bypass mine as close to the carb as possible. Use short feed lines to the carb so the fuel does not have time to heat up before it gets to the bowls.
I can put my hand in the fuel cell and feel the warm fuel out the return. Sometimes, depending on the conditions the outside of my carb actually sweats from the combination of a hot motor and cool fuel 
I prefer to do the same on the return line(keep it
close to the carb)... when we first started injection
we returned from the front then a few years later
we changed to a return at the pump.. reason was cost..
we cut cost with no return line... but with higher
fuel pressures you dont run into vapor lock
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Re: More pump gas trouble !
[Re: Quicktree]
#1476013
07/30/13 08:24 PM
07/30/13 08:24 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
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OP
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Posts: 27,421
Balt. Md
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I know its not this fuel pump as it did not loose fuel pressure when it happened and the orange box works fine as it did not loose spark either and never has with that orange box. I agree MSD is better but that box has been on our cars since 2000 and never had a problem. I put the plastic filter on early this summer to see what was going on when it did die 3 times and that was a loss of fuel pressure so I ended up replacing that pump early this summer with the Holley red pump I had to see how it worked and it never had a fuel problem again. It was a Firecore pump that cut out early this summer and we are taking care of that. But I wanted to go to the track so I threw a Holley Black pump on with the external reg. Like I said it did not loose fuel pressure yesterday or at all with this pump on it. This is only the first time this has happened this summer. But last summer I had the fuel boiling happen twice. Since then I added the heat shield and a new phenolic spacer which I did at the end of last summer. Thats one of the annoying things is it dont happen all the time as I thought the heat shield helped but yesterday showed me it really did not. Ron
Last edited by 383man; 07/30/13 09:17 PM.
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Re: More pump gas trouble !
[Re: 383man]
#1476014
07/30/13 09:31 PM
07/30/13 09:31 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
I know its not this fuel pump as it did not loose fuel pressure when it happened and the orange box works fine as it did not loose spark either and never has with that orange box. I agree MSD is better but that box has been on our cars since 2000 and never had a problem. I put the plastic filter on early this summer to see what was going on when it did die 3 times and that was a loss of fuel pressure so I ended up replacing that pump early this summer with the Holley red pump I had to see how it worked and it never had a fuel problem again. It was a Firecore pump that cut out early this summer and we are taking care of that. But I wanted to go to the track so I threw a Holley Black pump on with the external reg. Like I said it did not loose fuel pressure yesterday or at all with this pump on it. This is only the first time this has happened this summer. But last summer I had the fuel boiling happen twice. Since then I added the heat shield and a new phenolic spacer which I did at the end of last summer. Thats one of the annoying things is it dont happen all the time as I thought the heat shield helped but yesterday showed me it really did not. Ron
It is hard to imagine it getting that hot that the fuel boils at the carb, but you seem like a very sharp guy that has a handle on it. Hard to believe the top of that inner fender gets that hot as has been suggested. Perhaps try a temp gum to check out your underhood temps in various places underhood ?
Btw, nice sanitary work under the hood, what gears do you run ?
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Re: More pump gas trouble !
[Re: ]
#1476015
07/30/13 09:36 PM
07/30/13 09:36 PM
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Joined: Jan 2003
Posts: 27,421
Balt. Md
383man
OP
Too Many Posts
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OP
Too Many Posts
Joined: Jan 2003
Posts: 27,421
Balt. Md
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Quote:
Quote:
I know its not this fuel pump as it did not loose fuel pressure when it happened and the orange box works fine as it did not loose spark either and never has with that orange box. I agree MSD is better but that box has been on our cars since 2000 and never had a problem. I put the plastic filter on early this summer to see what was going on when it did die 3 times and that was a loss of fuel pressure so I ended up replacing that pump early this summer with the Holley red pump I had to see how it worked and it never had a fuel problem again. It was a Firecore pump that cut out early this summer and we are taking care of that. But I wanted to go to the track so I threw a Holley Black pump on with the external reg. Like I said it did not loose fuel pressure yesterday or at all with this pump on it. This is only the first time this has happened this summer. But last summer I had the fuel boiling happen twice. Since then I added the heat shield and a new phenolic spacer which I did at the end of last summer. Thats one of the annoying things is it dont happen all the time as I thought the heat shield helped but yesterday showed me it really did not. Ron
It is hard to imagine it getting that hot that the fuel boils at the carb, but you seem like a very sharp guy that has a handle on it. Hard to believe the top of that inner fender gets that hot as has been suggested. Perhaps try a temp gum to check out your underhood temps in various places underhood ?
Btw, nice sanitary work under the hood, what gears do you run ?
Thank you. Sometimes I cant believe how hot the carb feels when the eng is only at 180 to 185. I plan to make about a 20 mile one way run to a cruise spot this weekend and I will have everything ready if it acts up to check it out real close. A temp gun is a good idea and I want to get one anyway. Gears are 4.30's with a 30 x 9 rear tire. At 55 to 60 I run about 3200 RPM. Ron
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Re: More pump gas trouble !
[Re: 383man]
#1476016
07/30/13 11:25 PM
07/30/13 11:25 PM
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Joined: Sep 2007
Posts: 145
NJ
cb1289
member
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member
Joined: Sep 2007
Posts: 145
NJ
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Ron,
Had the exact same problem on a 65 Satellite big block. Installed a 3/16 vapor return line with approx.060" orifice restriction from thefuel pressure regulator guage port to the fill tube in the rear.Carter electric pump,no mech pump,dual quads then later a 950 Holley.Never ever had the problem again.This info comes from an article many years ago by Richard Ehrenberg in Mopar Action.
62 Dodge Dart Wagon
65 Plymouth Satellite
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