Posted by Steve@Advance on September 20, 2016 at 18:24:59 from (107.203.134.67):
In Reply to: F134 Jeep Engine posted by Doug - Iowa on September 20, 2016 at 16:45:19:
Might want to go back and recheck the valve clearance. Always a good idea to reset them after initial start up. Be a good time to retorque the head bolts (before setting the lifters).
Could the clacking and popping be an exhaust manifold leak? They can make some strange noises!
When you were working on the distributor, did you check the function of the centrifugal advance, and the vacuum advance (if equipped)?
Is the popping you mention coming from the carb, as in a cough or backfire on acceleration? That can be a sign of too lean or a problem with the accelerator pump. Also check for vacuum leaks.
I wouldn't be too concerned with finding timing marks. Pretty easy to get the timing "close enough" just by trial and error, make small adjustments, take it for a drive. Spark knock, kicking back when trying to start are signs of too much advance. Carb backfire, sluggish performance are evidence of slow timing.
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