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05-30-2020, 02:29 PM | #1 |
Member
Join Date: May 2016
Location: Houston TX
Posts: 79
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1953 Flathead acceleration issue
I just rebuilt my holley teapot carburetor and it runs great at idle but when I give it 1/4 to 1/2 throttle it spits then dies. The float looks level from the top. I replaced the fuel filter and the pump is mechanical but not that old. I also replaced the distributor cap and rotor and the vacuum advance on it to eliminate that from being a possible issue. Any other thoughts?
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05-30-2020, 02:48 PM | #2 |
Senior Member
Join Date: May 2010
Location: Shenandoah Valley Virginia
Posts: 220
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Re: 1953 Flathead acceleration issue
Sounds like the accelerator pump is not working. There should have been a new one in the rebuild kit. Make sure it has a snug fit in the cylinder. Also make sure you put in the check-ball to allow the pump to make pressure.
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05-30-2020, 04:35 PM | #3 |
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Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
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Re: 1953 Flathead acceleration issue
Try moving the pump adjustment to the hole that is farthest from the shaft center line.
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05-30-2020, 04:53 PM | #4 | |
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Join Date: Jul 2010
Location: Conifer, Colorado
Posts: 2,423
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Re: 1953 Flathead acceleration issue
Quote:
Prior posts may give you a few hints, as to correct float and fuel levels: https://www.fordbarn.com/forum/showt...ht=float+level https://www.fordbarn.com/forum/showt...vel+carburetor Last edited by Merc Cruzer; 05-30-2020 at 05:14 PM. |
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05-31-2020, 12:45 PM | #5 |
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Join Date: May 2016
Location: Houston TX
Posts: 79
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Re: 1953 Flathead acceleration issue
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I moved the pump adjustment over to the right from the middle and it helped alittle. But I also found the diaphragm from the kit for the power valve was another shorter then the original so luckly i saved the old one and put it in and now its running like a champ. Thanks for the help guys |
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