Quote:
Originally Posted by Hoop
"Could be rotor on backwards."
Even I cannot install the rotor backwards on this distributor. PLUS, Mac Van Pelt rebuilt it. Unless "nemw" took it apart and really screwed with things ... which it doesn't sound like he did.
The best that we know is that the spark is occurring when the piston is NOT at the proper place in the stroke. There is a weak attempt to fire on partial compression.
This is the result of either a spark timing problem or a timing gear issue.
Some of us have experienced both ... others are guessing.
The guessing confuses "nemw" ... not to mention true experts like Dick having a complete brain cramp and telling us that the exhaust valve opens right after TDC of the compression stroke. (We all have busy days. I can't find my other sock this morning.)
I posted the quickest, easiest way to check for a timing gear problem. You may only have to check one cylinder. If the valves are not opening/closing correctly at the top of the exhaust/intake stroke, you've found the problem.
The other possible source of the problem is what "nemw" did with the distributor AFTER he got it from Mac. Wiring, caps, etc have been suggested.
You have to clear up one suspect area then focus on the other.
It's going to turn out to be a simple problem made complicated by "nemw's" being unfamiliar with flatheads and a plethora (my wife likes that word) of forum advice.
Now, I'm going to find my other sock.
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NO a rotor cannot be installed backwards.It wont go all the way down so you couldn't reinstall back in the outer housing.Its impossible. ken ct.