Not knowing the engine, but with a formerly useful idea! If the passage from the hole in the rocker shaft support in the head is a straight drilling to the cam bearing (probable), the use of a thin brazing rod to probe down the hole,while very slowly turning the engine by hand, will allow you to feel the cam journal aligning with the hole. If it will not "find" the hole, expect a spun, or improperly installed cam bearing. You could also blow air down the hole and listen for a change in flow when the holes line up. Jim
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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