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Thread: Reaming new Harley VL pinion side race to fit pinion shaft

  1. #1

    Default Reaming new Harley VL pinion side race to fit pinion shaft

    Steve Solcombe book says to ream inner flywheel side of bushing to 0.0045" and outer cam side of bushing to 0.002". I know the special reamer is difficult to obtain. I have new pinion shaft and new bushing. Can I ream this pinion bushing straight thru at 0.002" or will this create a problem. If not what dimension should I use. Just curious, what is reason for original much wider clearance at inner side of bushing. Thanks!

  2. #2
    Join Date
    Jan 2003
    Location
    England
    Posts
    1,034

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    Dear Buster, yes that was the original Harley spec using their special tapered reamer. I'm guessing it was something to do with the lubrication system, or to allow for the flywheel assembly flexing slightly in operation. Today we usually have to straight bore it and I've estimated two to three thousandths clearance will do the job. So far so good.

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