Carburetor issue
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Posting Guru
Joined: Dec 2012
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From: abilene kansas
Carburetor issue
While I was warming up the 223 in My '59 to check the generator I put on, when I would press on the gas,it would bog severely, almost to backfiring.
Saw this on the side of My Holley 1 bbl, I assume this is the power valve? Are ones for a 2bbl/4bbl carb the same?
Saw this on the side of My Holley 1 bbl, I assume this is the power valve? Are ones for a 2bbl/4bbl carb the same?
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Joined: May 2013
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From: Manteca, CA
I ask because it looks like the fuel inlet fitting is wet...maybe from fuel, and that could cause many problems
I do not know if spark control valve is same or if that is your problemo, this site and Mikes videos on the you tube are GREAT info and help
Holley 1904 Carburetor Parts
http://www.carburetor-parts.com/Holley-1904_ep_320.html
I do not know if spark control valve is same or if that is your problemo, this site and Mikes videos on the you tube are GREAT info and help
Holley 1904 Carburetor Parts
http://www.carburetor-parts.com/Holley-1904_ep_320.html
Last edited by Maltman; Aug 8, 2014 at 04:13 PM. Reason: ADDED INFO
Elder User
Joined: Jun 2011
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From: Illinois
Is the accelerator pump working? Hit throttle while looking into carb and see if gas is squirting from that little screw on the edge of the air inlet. Clear as mud right?
If not prolly the accelerator pump diaphragm inside carb.
If not prolly the accelerator pump diaphragm inside carb.
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Posting Guru
Joined: Dec 2012
Posts: 1,242
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From: abilene kansas
I ask because it looks like the fuel inlet fitting is wet...maybe from fuel, and that could cause many problems
I do not know if spark control valve is same or if that is your problemo, this site and Mikes videos on the you tube are GREAT info and help
Holley 1904 Carburetor Parts
Holley 1904
I do not know if spark control valve is same or if that is your problemo, this site and Mikes videos on the you tube are GREAT info and help
Holley 1904 Carburetor Parts
Holley 1904
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Posting Guru
Joined: Dec 2012
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From: abilene kansas
I'll check that out
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Posting Guru
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From: abilene kansas
Didn't see any gas squirt from that screw, so I pulled the accelerator pump diaphragm out, it wasn't stiff,or looked dried out. Maybe there is a passageway plugged, I guess I'll pull the carb and clean it
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From: Illinois
Did you file the back of the economizer valve housing flat before you put it back together? My carb leaked like a sieve until I figured out why. Carbs would leak all the gas from the bowls into the engine over night. I filed the mounting surface flat with a file and that solved the problem.
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Posting Guru
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From: abilene kansas
Did you file the back of the economizer valve housing flat before you put it back together? My carb leaked like a sieve until I figured out why. Carbs would leak all the gas from the bowls into the engine over night. I filed the mounting surface flat with a file and that solved the problem.
I'll check that before I put it back together
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Posting Guru
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From: abilene kansas
I put the new pump in, and the flat spot was still there. Yesterday for gits and shiggles, I took out the #60 jet, and replaced it with a #67. The flat spot went away, revs up smooth as silk with the choke wide open. I will still check the ignition timing (soon as I can find the marks)
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