 Carter fuel pump question......, pressure issues |
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| degreeoff |
 Mar 17 2008, 06:33 PM
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#1
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I like big butts and I can not lie!  Group: Members Posts: 1,622 Joined: 9-February 03 From: Booowieeee MD (near DC) Member No.: 275 Region Association: MidAtlantic Region  |
is mine mounted too high? as it sits I am 3" or so above the tank and my pressure started to die on me 30 min into tuning my carbs. Does anyone have experience with a setup like this? Do I NEED to mount this pump lower than the tank or at least lower than it is or do I have a POS pump!
Thanks guys... Josh the fire breathing monster man!!  |
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| Elliot Cannon |
Mar 17 2008, 06:37 PM
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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I think you would want it below the tank or as close to the bottom as possible, to unsure positive gravity forced head pressure to the pump. Nice tank, where did you get it and how much does it hold?
Cheers, Elliot |
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| akellym |
Mar 17 2008, 06:39 PM
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Eyes Of The Deep Battle Group: Members Posts: 597 Joined: 25-July 04 From: Annandale, MN Member No.: 2,395 Region Association: Northstar Region |
I have mine level or about level with the bottom of the tank. I think it will work better for you lower.
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| sww914 |
Mar 17 2008, 07:21 PM
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#4
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Advanced Member Group: Members Posts: 2,439 Joined: 4-June 06 Member No.: 6,146 Region Association: None |
I have 2 Carter diaphragm pumps mounted 3-4" above the fuel cell without any issues.
I had one fuel pump with one pickup on one side of the tank and if it was less than 1/2 full I'd run out of gas on the long R sweepers. The cheapest solution was an additional pickup and an additional pump. I used to have an expensive rotary pump, but it was always a problem, so I tried a less expensive silly sounding diaphragm pump and I'm happier. |
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| degreeoff |
Mar 17 2008, 07:47 PM
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#5
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I like big butts and I can not lie! Group: Members Posts: 1,622 Joined: 9-February 03 From: Booowieeee MD (near DC) Member No.: 275 Region Association: MidAtlantic Region |
I will try a couple of things in the am....one will be to check my fuel filter for tank debris and second (for peace of mind) is to mount the bastard lower in the bay...... I would think that the siphon effect will keep the line fuel once primed...?
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| jcd914 |
Mar 17 2008, 09:53 PM
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#6
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
It has been great watching this come together! (IMG:style_emoticons/default/biggrin.gif)
It would seem to me. if it worked at start up it should still work 30 minutes latter unless you burned a LOT of fuel in 30 minutes or you have a restriction in the system. I have known several people that have had problems with the foam bits from a fuel cell plugging filters or pumps. Is your fuel tank vented? Good Luck. Jim |
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