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Joined: Jun 2012
Posts: 43
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jun 2012
Posts: 43 |
I have a 53 3100 pickup. Rebuilt Rochester type B carb. New fuel tank, fuel lines, fuel pump and fuel filter. When cranking, the carb is overflowing fuel. Tried disconnecting fuel line from inlet side of fuel pump. Started engine, no overflowing. Ran it like this til it died to push " blockage?" thru. Then reconnected the fuel line to fuel pump. Cranked it, it did it again. Took carb apart. No debris in needle valve. Blew thru with my mouth. Flows good. Put it back together. still does it. Tried this twice :( HELP!! Thanks, Chris
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Joined: Nov 2001
Posts: 29,863
Tech Advisor ChatMaster - 25,000
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Tech Advisor ChatMaster - 25,000
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The Mangy Old Mutt
"If It's Not Junk.....It's Not Treasure!"
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Joined: Feb 2002
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ChatMaster - 1,000
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Not to worry the new fuel pump made by our friends in China is good for about 60/70 miles before failing. 
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
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I would still bet the problem is with the needle and seat, float or dirt or a string of brass from a fitting or teflon.
Gene Schneider
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Joined: Jun 2012
Posts: 43
Shade Tree Mechanic
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OP
Shade Tree Mechanic
Joined: Jun 2012
Posts: 43 |
Thanks guys. Could someone tell me where could I get a new fuel pump NOT made overseas? Or is there some type of inline fuel pressure regulator? (I'm a plumber and that's what I would do for a water line) Thanks again.
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
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To rule out the fuel pump pressure thought you can rig up an IV feed. Get a bottle or can, afix a line and hose to conect to the carb. and let it gravity feed. No need to even start the engine....see if the needle and seat hold the gas back with just gravity for pressure....or buy a vacuum/fuel pressure gauge for much less than you think and actually check the pressure. Would be intresting to find out if and how high it is.
Gene Schneider
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Joined: Oct 2009
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Dont rule out that the float could be a sinker!
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Joined: Jun 2012
Posts: 43
Shade Tree Mechanic
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OP
Shade Tree Mechanic
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Well the answer was: the float WAS a sinker! Thanks, Chris
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Joined: Nov 2004
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I agree with Gene. I had the same problem. Changed needle and seat repeatedly. My problem--Crapanol gas!! Cleaned everything and switched to non ethanol gas. Problem went away. Check out www.pure-gas.org for a listing of non ethanol stations in your state.
Rick
"Never time to do it right the first time, but always time to do it over."
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Joined: Feb 2002
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Not to worry the new fuel pump made by our friends in China is good for about 60/70 miles before failing.  Need to add to my comment by saying that often times when opening up a fuel line to change a pump or a filter we get dirt in the line which gets to the carb and causes problems. 
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