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06-20-2017, 06:53 PM | #1 |
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Join Date: May 2012
Location: Hat City (Danbury CT)
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Holley 94 hesitation
On a Holley 94 is there something that comes to mine that could cure hesitation off a Rollin stop . Mounted on a smooth running 8ba , no other issue other then this hesitation .
I've done a search but couldn't fine any good topic on the above . The hesitation isn't bad but noticeable ..... Thanks in advance for and imput ....
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06-20-2017, 07:32 PM | #2 |
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Re: Holley 94 hesitation
Step,
Ball check on the bottom of the acc pump bore not sealing on the down stroke. With the air horn off actuate the throttle arm briskly and see if there is a gush in the bowl when the arm is actuated, that's showing fuel is returning to the bowl stealing some volume from the acc pump. A plug in one of the squirter nozzles. Then a sort of obscure cause, but it happens, beneath the squirter is a brass plunger with a point on the down side. That point seals an orifice blah blah blah......if that point does not seat and seal the orifice you will ,shall I say, get a momentary blank spot. This blank spot is not a real big deal but it is a pita. Remove the squirter and using a small punch and a smaller hammer tap the plunger to establish a seat. After the tap flip the carb over to be sure the plunger hasn't found a permanent home. Charlie ny |
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06-20-2017, 07:44 PM | #3 |
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Re: Holley 94 hesitation
Thanks Charlie
Your right blah blah , I believe we meet at Rhiebeck one year . It sound like I'm pulling Holley off and sending to you this winter ... Thanks
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06-21-2017, 07:28 AM | #4 |
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Re: Holley 94 hesitation
Also check the vacuum advance. I had one with an incorrect advance unit that made the timing come up slow.
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06-21-2017, 07:57 AM | #5 |
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Re: Holley 94 hesitation
Had the same experience as Frank. Finally found distributor advance was the problem.
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06-22-2017, 06:23 AM | #6 |
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Re: Holley 94 hesitation
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06-22-2017, 11:38 AM | #7 | |
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Re: Holley 94 hesitation
Quote:
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