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Old 02-09-2022, 05:58 PM   #12
nkaminar
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Join Date: Jan 2012
Location: Western North Carolina
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Default Re: Model AA cyclinder compression

Compression is good enough for the engine to run and is in the correct range for a stock engine. Start with the simple things like checking sparks at the plugs. You said you were getting sparks, but where? The end of the spark chain is at the plugs. It sounds like you are getting enough gasoline for the engine to at least try to start.

Did you change the timing or is the point gap off which would change timing? You can check the timing without changing it if it is correct.

The only thing I would do to the head is check the torque on the nuts. They should be 55 foot-pounds. Start at the center nut and work outward in a circle from there. I have always used 20 foot-pound intervals but I recently read to use 10 foot-pound intervals from an expert. He said that if one nut is torqued too much in relation to the rest it can crack the block.
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