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08-25-2011, 02:58 PM
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#15
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Junior Member
Vintage RV Owners Club
Join Date: Jul 2011
Location: Fisheating Creek - Florida
Posts: 22
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Ours (454) did the same thing - $1300 later we discovered it was a fuel filter under the mh about halfway to the fuel tank. Replaced that (about $3.00) and have never had a problem since then. Well, at least we know that the dist, carb, etc are all rebuilt!!!!
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08-27-2011, 08:53 PM
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#16
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Junior Member
Join Date: May 2011
Posts: 8
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Hear is what we come up with, converters were fine, mufflers fine, we added a second electric pump to the system, and it runs and goes uphill just fine now, evidently one pump did not deliver enough fuel, thanks to everyone who gave advice, George.
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08-30-2011, 09:39 PM
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#17
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Senior Member
Fleetwood Owners Club Solo Rvers Club
Join Date: Oct 2010
Location: Quartz Hill, California
Posts: 445
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Quote:
Originally Posted by George Tucke
Hear is what we come up with, converters were fine, mufflers fine, we added a second electric pump to the system, and it runs and goes uphill just fine now, evidently one pump did not deliver enough fuel, thanks to everyone who gave advice, George.
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been there, done that. with dad's old '72 ford truck & camper with 360ci.
electric after-market pump didn't supply enough fuel to climb hills. 
__________________
'94 Bounder 32h. Chevy V-8 44k miles and like new. Tow 4 down 2007 Saturn Vue w/Honda V6
Retired Memorial Day wknd, 2015, but who's counting 
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09-03-2011, 06:10 AM
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#18
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Senior Member
Join Date: Sep 2011
Location: Crawfordville, FL
Posts: 708
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Mr George, I had my 454 fuel pump replaced two times. The first one was purchased from a Napa parts place. Though listed for a replacement on the P30 chassis, it wasn't made for the 454 P30. It could not hold the required pressure. My mechinic found the right one and solved the problem, although costly.
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09-03-2011, 11:07 PM
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#19
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Senior Member
Join Date: Nov 2009
Posts: 1,152
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Not so much the pressure of the pump as it is the volume. The pumps designed for racing with high flow rates are commonly used as replacement in this situation. Just make sure to get the proper pressure rating if your rig is carburated or injected.
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09-04-2011, 10:49 AM
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#20
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Junior Member
Join Date: May 2011
Posts: 8
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I did not know that about the pump, thank you, George.
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09-04-2011, 11:38 AM
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#21
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Senior Member
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
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Pumps are a strange breed.....I use ONLY the Edelbrock 1722 which delivers 6 PSI and sucks up 110 GPH.
NO return line is available on any pump unless it's STOCK.....Doesn't bother me one bit cuz I simply cap the return line off, If the pump dies on the road you can overnight another from Summitracing.......
You will find that a stock manual fuel pump will work on the flat and level but on hill climbs it cannot deliver e'nuf and starts to lean out, sputter and dies....
Jim
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09-04-2011, 11:50 AM
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#22
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Senior Member
Fleetwood Owners Club Solo Rvers Club
Join Date: Oct 2010
Location: Quartz Hill, California
Posts: 445
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If your vehicle has a return to the tank, but the new pump does not have one, you can get a fuel filter for a carbureted 1989 Jeep Grand wagoneer. It has the extra return nipple.
THE reason the pumps, and in the Jeep, have the return feature is to eliminate VAPOR LOCKING the fuel pump when it gets too hot.
They get hotter when underhood temps climb due to extreme hot weather, and climbing hills. The return line keeps fuel flowing thru the pump. thus cooling it, which prevents vapor lock.
Be sure to have that return setup, or your new pump can do the same problem again.  Been there, done that.
__________________
'94 Bounder 32h. Chevy V-8 44k miles and like new. Tow 4 down 2007 Saturn Vue w/Honda V6
Retired Memorial Day wknd, 2015, but who's counting
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09-04-2011, 02:38 PM
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#23
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Senior Member
Workhorse Chassis Owner
Join Date: Dec 2006
Location: La Quinta California
Posts: 523
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Quote:
Originally Posted by mr300ce
If your vehicle has a return to the tank, but the new pump does not have one, you can get a fuel filter for a carbureted 1989 Jeep Grand wagoneer. It has the extra return nipple.
THE reason the pumps, and in the Jeep, have the return feature is to eliminate VAPOR LOCKING the fuel pump when it gets too hot.
They get hotter when underhood temps climb due to extreme hot weather, and climbing hills. The return line keeps fuel flowing thru the pump. thus cooling it, which prevents vapor lock.
Be sure to have that return setup, or your new pump can do the same problem again. Been there, done that. |
None of your described systems over the blazing hot summer with the new Edelbrock fuel pump.....
6 more weeks of the hot stuff (115*+) and those problems will be long gone....
Jim
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09-05-2011, 11:17 AM
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#24
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Junior Member
Join Date: May 2011
Posts: 8
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Thats good information, appreciate it, George.
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