The Ford Barn

46fordnut · 01-10-2012, 06:37 PM

i had my ford running today.. runs very nice just it hesitates when you go from dead stop.. points good carb rebuilt , new fuel pump. vac brake not working maybe? lots of power.

it has a Flathead v8.

flatjack9 · 01-10-2012, 06:42 PM

Vacuum brake should have nothing to do with it. Could be that the accelerator pump is not giving a big enough shot.

46fordnut · 01-10-2012, 06:49 PM

it has always been like this from day one for me . does run at highway speed fine (65). flat spot is worse when engine is cold. forgot one thing ..i don't think the engine was ever rebuilt. at least i did not do that she is pretty rusty.

ken ct · 01-10-2012, 07:13 PM

Check the small link that connects the throttle arm to the accel pump rod. The center hole in the throttle lever must not be a sloppy fit. Thats where you might get a hesitation when you give it gas from idle as depressing the gas pedal the first 1/4" does not start pushing the accel pump down till the slop is taken up. Where the bottom of the 2 pins go into the throttle lever.I have new ones if you need.If the hole is really worn bad like egg shapped you could braze it up and redrill it to the pin diam. must be a good fit. Not sloppy. ken ct.

46fordnut · 01-10-2012, 07:45 PM

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ok..could tell me how much one of those are if i cant fix mine? forgot to tell you it is a holly 21-29 . i have the excel pump set on the middle hole. witch one for more fuel pumped in front or back hole?

01-10-2012, 06:37 PM	#1
46fordnut Senior Member Join Date: Jun 2011 Location: new jersey Posts: 228	flatspot i had my ford running today.. runs very nice just it hesitates when you go from dead stop.. points good carb rebuilt , new fuel pump. vac brake not working maybe? lots of power. it has a Flathead v8. __________________ if rust were money i would be a billionaire!!

01-10-2012, 06:42 PM	#2
flatjack9 Senior Member Join Date: May 2010 Location: Oshkosh, Wi Posts: 4,608	Re: flatspot Vacuum brake should have nothing to do with it. Could be that the accelerator pump is not giving a big enough shot.

01-10-2012, 06:49 PM	#3
46fordnut Senior Member Join Date: Jun 2011 Location: new jersey Posts: 228	Re: flatspot it has always been like this from day one for me . does run at highway speed fine (65). flat spot is worse when engine is cold. forgot one thing ..i don't think the engine was ever rebuilt. at least i did not do that she is pretty rusty. __________________ if rust were money i would be a billionaire!!

01-10-2012, 07:13 PM	#4
ken ct BANNED Join Date: May 2010 Location: stratford,ct Posts: 5,971	Re: flatspot Check the small link that connects the throttle arm to the accel pump rod. The center hole in the throttle lever must not be a sloppy fit. Thats where you might get a hesitation when you give it gas from idle as depressing the gas pedal the first 1/4" does not start pushing the accel pump down till the slop is taken up. Where the bottom of the 2 pins go into the throttle lever.I have new ones if you need.If the hole is really worn bad like egg shapped you could braze it up and redrill it to the pin diam. must be a good fit. Not sloppy. ken ct.

01-10-2012, 07:45 PM	#5
46fordnut Senior Member Join Date: Jun 2011 Location: new jersey Posts: 228	Re: flatspot Sponsored Links (Register now to hide all advertisements) ok..could tell me how much one of those are if i cant fix mine? forgot to tell you it is a holly 21-29 . i have the excel pump set on the middle hole. witch one for more fuel pumped in front or back hole? __________________ if rust were money i would be a billionaire!! Last edited by 46fordnut; 01-10-2012 at 08:54 PM.