Re: rough idle/acceraltion

Posted by doug Linden on May 12, 1997 at 14:05:54

In Reply to: rough idle/acceraltion
posted by Ken Bigham on May 11, 1997 at 20:33:41

: I'm hoping someone out there has a suggestion to help me with a problem i'm having.
: My engine has recently been rebuilt. 30 over all the ususal
: balanced, adjustable tappet, hardened valve seats etc.
: My problem is that I have been unable to get the motor to run
: smoothly. It starts easily, but requires that the fuels mixture
: be turned open 3-4 full turns. At that stage it will run and
: accelerate well. Any less and the engine, bucks and will
: not accelerate.
: The timing is correct as far as I can see. I have tried 2
: Zenith carbs and 1 x aftermarket carb which runs the best of the three. I've checked the fuel flow which is adequate
: and have even blocked off the windshield wiper vacum.
: The engine just seems to be running like it has a vacum leak.
: The manifold was milled and there were no apparent cracks.
: I've also retightened the manifold...all to no avail.
: I really think it is carb or intake manifold related.
: On the road the car runs o k,does not overheat etc...
: but just will not run at idle. The air screw on the carb is currently 1/8 open. Opening the screw kills the motor.
: I know that the engine is very tight..spec wise, and maybe this will improve after breakin...
: I appreciate any help or advice.
: Thanks in advance.
: Ken

Follow Ups:
Re: rough idle/acceraltion RBraswell May 12, 1997 at 18:31:10(0)

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