c2 bvette has acceleration problems
Thread Starter
Heel & Toe
Joined: Sep 2019
Posts: 19
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c2 bvette has acceleration problems
The car ran fine and then periodically it started hesitating on acceleration, then it would run fine. Now it is hesitating more and more but then it will run fine. I did replace the fuel filter. I thought if it was the pump it would hesitate all the time.
Moderator
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From: Parrish FL
St. Jude Donor '06 thru '26
Welcome to Corvette Forum! Your inquiry will be moved to the C1/C2 Forum. A lot of good info there.
https://www.corvetteforum.com/forums...-1953-1967-21/
https://www.corvetteforum.com/forums...-1953-1967-21/
Team Owner
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From: Sitting in his Nowhere land Hanover Pa
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going to need to know more. engine, brand of carb, and modifications. I would first check your timing, if you have points check dwell. if they both check out then start trouble shooting fuel
Melting Slicks
Joined: Dec 2017
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From: Michigan
2023 Restomod of the Year finalist
I have that same problem with my gas grass trimmer...........Dam Carburetor!!!....Think I'll go purchase an electric grass trimmer tomorrow.
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Drifting
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From: Asheville NC
Carb Issue
Hi Rex,
Welcome to the forum,
So if I follow you'r post correctly you have
196? Corvette?
327/350 HP L79? stock engine - so Holley carb?
That occasionally hesitates on acceleration sometimes?
Question - Does it hesitate when cold or only when hot?
- If only when hot then a lean condition or timing issue
- vacuum leak, accelerator pump, Vac Can, other issue.
Can you post a picture of your engine with the air cleaner off?
Phil
Welcome to the forum,
So if I follow you'r post correctly you have
196? Corvette?
327/350 HP L79? stock engine - so Holley carb?
That occasionally hesitates on acceleration sometimes?
Question - Does it hesitate when cold or only when hot?
- If only when hot then a lean condition or timing issue
- vacuum leak, accelerator pump, Vac Can, other issue.
Can you post a picture of your engine with the air cleaner off?
Phil
Team Owner
Joined: Aug 2007
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Army
If you have a vacuum gauge you can quickly measure fuel pressure and then volume using a glass jar (I have the instructions if you need them); then park the car in a dark garage and with the engine running (AND PROPER VENTILATION) look for arcing along the plug wires (shielding off) while revving the engine a bit. Next I would suspect ignition coil, bulkhead connector, or, points condensor if you have one.
Finally sticking centrifugal advance weights can cause what you describe - those are worth a look too.
Finally sticking centrifugal advance weights can cause what you describe - those are worth a look too.
Le Mans Master
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From: Pittsburgh
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Le Mans Master
Joined: Dec 2004
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From: Pittsburgh
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Quote from one of our Forum Experts!!!
"It helps to have the motor on TDC but not necessary; if the engine block rod is pushed all the way up as far as it will go and your temporary bolt holds it - that's all you need. Bolt up the fuel pump, remove the temporary bolt and put the shorter original one back in and you're done....
Its not that tough an install....."