not everytime but sometimes theres a little hesitation when i accel. it makes driving a manual trans a guessing game.
Does it do this when it is cold? Hot? both? Possibly a carb issue, but hard to say for sure without details. You can look inside your carb and make sure gas is spraying with the smallest movement of the accelerator cable. If not, try adjusting it.
hey brian, its hard to rember what your set up is with out checking your other posts. put your set up in you signiture or post it for each question to get the best help possible. it could be the accelrator pump it could be a power valve it could be a squirter size it could be the vac advance on the distrbutor it could be the timing we need to know what type of motor, carb, and ignition system you have. then we can tell you what to adjust or test fix your car.
ooh well its a stock 302 with points someone helped me rebuild the carb a few months ago and i guess it happens more when its cold
if the points are worn that could cause a heistation. if the choke is sticking that can cause a hesitation. what is the dewell of the points right now. need a dewell meter to know that. i would replace the points with an eletronic conversion like a pertronics or dura spark II before anything else.
yeah im working on that. i think it is the vacuum advance the diaphragm might be bad because it doesn't hold suction or is it supposed to? like it has a small leak also it notice there is a certain spot that it runs very wired. if i rev it really low its sounds good.. a little higher and it sounds like its running out of gas and about to die. and if i rev it more it seems fine again. if i hold it in the certain spot it doesn't get any betteruntill i rev it higher or lower it still runs like its gonna die
You can check the vacuum diaphram by disconnecting the hose at the carb and sucking on it while the distributor cap is off and watching the breaker plate for movement. I recently (last two years) bought a new vacuum pod at the local Advance Auto Parts for a distributor I had that went bad.
yeah i did test it like that but if i stuck it to my tounge it would leak and go back. is that normal?
It should hold a vacuum. New pods are cheap, change it. I think I paid no more than about $15 for a new one.
sounds like one of the transition ports in the carb is plugged up. check this out. http://members.tccoa.com/392bird/tuning.htm
There are dozens of vacuum cans for SBF distributors. There is one for a 68 Fairlane 302 that has a single port and is adjustable. Costs the same as all the others, and adjusts tiny hex wrench. Very nifty upgrade IMO...
