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Carb and electric fuel pump



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Old 01-15-2011, 11:53 PM   #1
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Carb and electric fuel pump

I am running a Motorcraft 2100 carb on my jeep 304 and using an electric fuel pump that is 5-9 psi and 30 gph fuel flow. I know I need to put a rebuild kit in the carb, however as it sits, the carb will drip fuel into the barrels with the pump on and engine not running. I have no return line installed on this setup either. What do I need to do to keep the carb from getting too much fuel (like it is now)? Regulate the pressure down?? Plumb in return (would have to be through a retunr style fuel filter? Both?? Or is something just blown out on the carb and after a rebuild I will be ok as is?
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Old 01-16-2011, 01:22 AM   #2
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Carb and electric fuel pump

Sounds like something is blown on the carb.
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Old 01-16-2011, 06:27 AM   #3
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Originally Posted by Big4x4ride View Post
is 5-9 psi and 30 gph fuel flow......as it sits, the carb will drip fuel into the barrels with the pump on and engine not running.
Not sure what the pressure should be, but it sounds like the needle valve is leaking.
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Old 01-16-2011, 07:22 AM   #4
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http://street2mud.com/webfiles/MC-21...%20a%20258.pdf

That link gives you just about everything other than the necessary fuel pressure.
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Old 01-16-2011, 10:01 AM   #5
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Thanks, I think I am printing out the 2100 info as I type.
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Old 01-16-2011, 10:11 AM   #6
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I had problems with my carb on the Zombie until I put a return line and a GOOD fuel pressure regulator on it.
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Old 01-16-2011, 10:23 AM   #7
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Mitch, what are you considering a good one?? I was just looking at a $30 holley one.
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Old 01-16-2011, 10:34 AM   #8
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Well, That's what I had, but I had a cheap gauge on it. When I replaced it, I put a Barry Grant regulator and a liguid filled Holley gauge on it. I got it from a local dirt track shop.

http://www.smileysracing.com/

This is the regulator
http://www.smileysracing.com/cat/vie...23bf8&pgID=321

This is the gauge (I couldn't find it on the Smileys website, but I bought it "in store")
http://www.summitracing.com/parts/HLY-26-504/
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Old 01-16-2011, 10:38 AM   #9
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Thats like twice what I have in the Jeep total.... LoL, j/k thanks bud, I'll look into those
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Old 01-16-2011, 10:40 AM   #10
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Not saying you have to use what I did, I'm just giving you the information based on what parts I had available without mail order. I paid for "convienence".
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Old 01-16-2011, 10:42 AM   #11
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ive got one of those carbs if you want a back up, ill give it to you...
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Old 01-16-2011, 10:52 AM   #12
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Quote:
Originally Posted by Mitch View Post
Not saying you have to use what I did, I'm just giving you the information based on what parts I had available without mail order. I paid for "convienence".

This is Corpus Christi, lack of aftermarket support USA here buddy, if its not mail order, its probably stolen!!
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Old 01-16-2011, 10:53 AM   #13
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ive got one of those carbs if you want a back up, ill give it to you...
I'll take it!!
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Old 01-16-2011, 12:16 PM   #14
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