Intake Gasket?
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Senior User
Joined: Jan 2008
Posts: 246
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From: Cincinnati, OH
Intake Gasket?
I started to tune on my carb today (original autolite), and I noticed two things: 1. Turning the either screw in or out did not seem to have any affect at all on how the engine ran.
2. When I gas it, it seems like it stops firing and all I hear is a bunch of air getting sucked into the engine. The engine doesn't die though, after a few seconds it recovers back to the same sh$tty idle.
A buddy told me I might have a leak somewhere in the intake - I just rebuilt the carb and replaced both gaskets between the carb, spacer and intake manifold, but the manifold to block gaskets are original (as far as I know).
I sprayed a little WD-40 around some spots where I thought it might be leaking to see if the engine rpms would go up, but nothing.
Any suggestions?
2. When I gas it, it seems like it stops firing and all I hear is a bunch of air getting sucked into the engine. The engine doesn't die though, after a few seconds it recovers back to the same sh$tty idle.
A buddy told me I might have a leak somewhere in the intake - I just rebuilt the carb and replaced both gaskets between the carb, spacer and intake manifold, but the manifold to block gaskets are original (as far as I know).
I sprayed a little WD-40 around some spots where I thought it might be leaking to see if the engine rpms would go up, but nothing.
Any suggestions?
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Joined: Dec 2007
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Since you've already checked for intake manifold leakage, your next easiest diagnoses are: 1) bad vacuum advance or leaky connection between carb and vaccuum advance; 2) burned or improperly set ignition points; 3) timing problem; 4) fuel pump/fuel filter problem.
Thread Starter
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Senior User
Joined: Jan 2008
Posts: 246
Likes: 0
From: Cincinnati, OH
I just put new points on, set them to .015 like the manual said. Replaced the fuel pump as well, and set the timing at 6 degrees.
I think I'll check the vaccuum advance now. Thanks for the tip. I'll post my results.
I think I'll check the vaccuum advance now. Thanks for the tip. I'll post my results.
