Posted by ScottyHOMEy on August 18, 2009 at 13:31:16 from (70.105.238.13):
In Reply to: Re: 140 no compression posted by ScottyHOMEy on August 18, 2009 at 12:47:49:
Valve timing . . .
The only sure way is to open up the timing cover and check for correct alignment of the marks on your gear teeth (crank to cam) and make sure they're right, and check the condition of the gears and teeth. Getting in there is a lot of work. If you do, check the timing and condistion of your governor gear at the same time.
Easier and, for the moment, adequate, is to watch your pistons and valves as you turn the motor by hand. Your valves, from front to back are EI-IE-EI-IE. You should see the intake valve on #1 open and close. As you turn from there you should feel compression at the plug hole. Keep turning through what would then be the combustion stroke, and at just about the time that the exhaust valve starts to open, you should be able to see #2 piston very near the top of it's stroke. This is all eyeball, there's nothing precise about it, but if it's that close, the valves are not so far out of time that you shouldn't be able to get some compression somewhere.
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