| Other electric fuel pumps? [message #227998] |
Thu, 31 October 2013 20:41  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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I am seriously considering changing to two electric pumps and removing the engine driven pump.
Has anybody done a successful installation with something other than Carter 4070?
I am looking at both Facet and Airtex. They are about half the price and most of all would be easier to mount on the underside of the floor.
Matt
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Other electric fuel pumps? [message #228002 is a reply to message #227998] |
Thu, 31 October 2013 20:59  |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Nice thing about the carter pump it is a vane pump rather then a diaphragm pump.so the ethanol won 't hurt it.
Roy Keen
Minden,NV
76 X Glenbrook
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| Re: Other electric fuel pumps? [message #228006 is a reply to message #227998] |
Thu, 31 October 2013 21:14 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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Matt,
I use an Airtex pump as a booster pump but I retained the mechanical pump as well. I have used the same Airtex pump on several trucks with good results, but always as a booster to combat vapor lock, never as a stand alone application.
http://www.gmcmhphotos.com/photos/gas-tank-fuel-line-project-6-10/p34773-gas-tank-clean-up-fuel.html
Carl Stouffer
'75 ex Palm Beach
Tucson, AZ.
Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member
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| Re: Other electric fuel pumps? [message #228010 is a reply to message #227998] |
Thu, 31 October 2013 21:41 |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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I also have the Airtex mounted as a backup pump on the aux tank. It is, as far as I can tell, identical to the carter.
I have decided to go with two electric pumps and no mechanical. I have not yet decided if I will do in tank or external electric pumps. I have to drop my tanks to check/replace the rubber lines anyway.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: Other electric fuel pumps? [message #228011 is a reply to message #227998] |
Thu, 31 October 2013 21:48 |
lqqkatjon
Messages: 2324
Registered: October 2010
Location: St. Cloud, MN
Karma: 5
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Senior Member |
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Matt,
I run a faucet cube on my GMC for quite a few years now on the aux side. Jim Bounds install method. It seems to work since I installed it. I switch it on everytime I start the gmc, then switch it off once I start the gmc, and have used it a couple times for vapor lock situation. if I listen, I can hear it run, if the engine is not running. can't hear it if the engine is running. you probably understand where that is placed.
I have a mr. gasket one on my onan now. probably 1.5 years on that one. it still makes the onan run. can't hear it run over the onan.
I installed a carter 4070 on my jeep grand wagoneer. I isolated the bracket from the frame with both some hpde plastic, and a chunk of mouse pad. it is located in off the frame in the rear. I can hear it run, unless I am moving. not a thumper, but a whine. but it has not failed me for 2 years now. I put that one, because I was having constant obvious vapor lock with my Jeep when I first got it. I have aftermarket dual tank on my wagoneer, and the fuel line routing to the engine pump was too much. the electric pump solved all vapor locking on that vehicle.
now for another story... my vw dune buggy. obviously gets used a bit differently.
I ran a pump similar to the carter for a number of years, with no problems. it was a used pump when I installed it. It finally died last summer. so this summer was the summer of burning out electric fuel pumps.
so after that one died, I installed a facet cube. Loud and very thumpy. You knew it was there, working. but that lasted only two trips out, it did not die completely, but just was intermittent working. Keith V was with me when it died. a smack of the hammer brought it back, but it could not keep the carb full after that. I could tell it was failing by it's sound changing from when it was new.
I then installed the airtex one, because a VW mechanic in town said he had better luck with those then the cubes. and had installed one on another buggy we had. it was about 20 or 30 bucks more then the cube, and cheaper, smaller and easier to install then the carter. well, I got two trips with that one. It died completely, not on the trail, but in my garage. went to put the buggy on the trailer, and got 1/2 way over to the trailer when the carb bowl was empty, and the fuel pump was dead. checked voltage, ground, and smacked it with a hammer. Nothing.
I pulled another airtex one off that other buggy. and I got one weekend out of that. and that one died... this time on the trail. I pulled it off, and just used gravity to limp back home. but after it bounced around in my toolbox on the buggy, it came back alive when I had it home to do some testing. I did not reinstall it. so on my bench, is one airtex, that seems to work, but was dead at one time.(I had done plenty of voltage checks, ect.. before I pulled it), but when I hook it to my jump pack now it seems to work. and a faucet cube that does not pump very well.
so I went and installed a good mechanical pump on my VW engine. seems to be running good now.
so my personal opinion, is the carter is loud, but you can tell it is built much better. also costs more.
I think the cubes or airtex are fine, but I would want a backup, and not rely on them.
that is my opinion on fuel pumps from me, who is sick and tired of changing fuel pumps.
amazon has good prices on fuel pumps, if you can get the right part number.
Jon Roche
75 palm beach
EBL EFI, manny headers, Micro Level, rebuilt most of coach now.
St. Cloud, MN
http://lqqkatjon.blogspot.com/
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| Re: Other electric fuel pumps? [message #228016 is a reply to message #227998] |
Thu, 31 October 2013 23:15 |
jim kanomata
Messages: 257
Registered: March 2007
Location: fremont,ca
Karma: 12
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Senior Member |
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Matt,
If your running the low pressure system, you can use just one pump and utilize the tank slector valve.
I suggest that you replace the selector valve s thy are deteriated.
Those that are using high pressure pump in the tank will not be able to us the selector valve as it cannot withstand pressure greater than 9psi.
I accidently read the instruction last month.
Amazing what you learn by reading.
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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| Re: Other electric fuel pumps? [message #228017 is a reply to message #227998] |
Thu, 31 October 2013 23:20 |
roy1
Messages: 2126
Registered: July 2004
Location: Minden nevada
Karma: 6
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Senior Member |
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Since you you will be using the pumps as the primary rather then back up I'd try to get pumps that will last a long time. I recently removed my mechanical pump and selector valve and installed 2 carter pumps I was lucky to acquire them over time for cheap which doesn't hurt. I had a red Mallory pump around 15 years ago that didn't last long. My wife's Chevy powered 32 Ford had a carter pump in it for 30 years it was still working ok when we sold it last year. The Bendix pump like on the Onan is pretty good but it doesn't move enough fuel. I had 2 of them in parallel in my 455 olds jet boat cause 1 didn't move enough gas.
Roy Keen
Minden,NV
76 X Glenbrook
[Updated on: Thu, 31 October 2013 23:21] Report message to a moderator |
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