I finally went under the car, after some wrestling, was able to test the compress on #7.
Compression is 90 psi.
But here is interesting part:
at first few cranks, the compression is 90, then it shot up to 150, when I press the "release" button to release the air from the compression tester, the gasoline was spewing out from it. so it is flooded with gas.
dump questions: 1. could this be the SOLE cause of the starting problem? 2. what the cause of this flooding issue? (only on this cylinder).
thanks
IF the compression is actually that bad, it's not the only problem. Fuel issue could be a faulty carb/float/needle & seat etc - or you just been pumping the pi$$ out of the gas pedal.
Pull all of the plugs and get the fuel out of it. Disable the ignition so there are NO sparks and bump the engine around, preferably by jumping the starter relay so the ignition is not on. Try to pinch a fuel line or stop the fuel from getting to the carb until you verify that is not where the issue is. Allow it to dry out. Get some oil in the cylinders, either in the plug holes or fog some JB80 or something down the carb. Throw the plugs in the trash, they're done.
Still need to get the valve covers off. Bar or bump the engine around as if you were adjusting valves and look for loose rockers.
Be careful - with all that fuel there is a fire hazard.
