Re: RD-17 crank defects—-

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June 9, 2016 at 3:20 pm #37989
fisherman6
Participant

    US Member

    I’m not an expert on motor rebuilding either, nor am I a toolmaker but I have a little background in machining and I share the same concern as Richard here. Definitely mic the journals to ensure they are still within spec. I’d be pretty concerned with using anything coarser than 1500 grit, 2000 would be better. You can take a couple thou off a crank journal with 320 with a lathe turning the crank before you know it.
    -Ben

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