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Old 08-28-2011, 07:16 PM
vpd66 vpd66 is offline
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You have to make or buy a positive piston stop. You can make one out of an old spark plug. Gut the center of an old spark plug and weld or blaze a piece of steel rod that fits in place of the center electrode. Make sure it sticks out to touch the top of the piston. Pull all spark plugs. Insert your postive piston stop in #1 cylinder. Turn the motor over by hand clockwise underti the piston touches the stop. Read your timing tape. Now rotate the engine counter clockwise until it hits the piston stop. Read your timing tape. You should have equal number but they will be opposite sides of TDC. Example, 20 degrees before TDC turn it the other way and you should get 20 degrees after TDC. Any differences is the amount you timing tape or timiing mark is off. I hope this helps.
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