Quote:
Originally Posted by maytag
You didn't answer the why, or how. Do you not know?
While doing leakdown tests, I had zero problem turning the crank either direction to get each piston where I wanted it.
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With no oil pressure, all the hydraulic tensioners go dead, the chains go slack and there is enough slop to make the cam drive the equivalent of a couple of teeth out, which leads to contact. Some people seem to get away with it, probably because their hydraulic tensioners did not completely bleed down, or they were doing it on a five chain engine. It is worse on three chain engines than on five chain, probably because of the short chain between the cams holding everything more in time.
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