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Crank pulley Harmonic balancer question
Posted: Thu Jan 16, 2025 1:49 pm
by nismou20
So how are U20 crank pulley timing marks restored to the base in relation to keyway? Mine was slipping slowly toward the engine timing pointer. Going to take it to a machine shop but just curious as I don’t see alignment marks.
Re: Crank pulley Harmonic balancer question
Posted: Thu Jan 16, 2025 4:16 pm
by david premo
You need to have it rebuilt. The rubber vulcanization has deteriorated.
Re: Crank pulley Harmonic balancer question
Posted: Thu Jan 16, 2025 6:25 pm
by Gregs672000
That's a good question. I had mine rebuilt by a place in CA and they seemed to know. Discuss with the rebuilder. I suspected this had happened to you on your previous post... better than a crank thrust issue, that's for sure!