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  1. #41

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    I have a buddy who owns a machine shop that I could get to measure them. I would bolt them together and have him measure the bore but I can see just by eye they are beat out. I don't want to put a nice new crank in there just to have it flexing and banging around in there. I believe I have found another case from another member, a buddy of yours you referred me to earlier.

  2. #42

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    Sep 2015
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    I had a look at my original case halves. There is a fairly substantial thickness of sealant that looks like clear RTV left on the mating surfaces. Aren't these cases supposed to be assembled with a sealant that compresses out to almost nothing?

  3. #43

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    I bolted my case halves together and took them to the machine shop just to be sure. I was right, the bearing bores are beat out. The case is junk.

  4. #44
    Click avatar for tech links/info K447's Avatar
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    Jul 2007
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    Quote Originally Posted by Mockingee View Post
    I bolted my case halves together and took them to the machine shop just to be sure. I was right, the bearing bores are beat out. The case is junk.
    In the past I have had a machine shop (also an engine rebuilding company) shave the case halves and then line bore the empty crankcase (with the two halves properly bolted together) back to round and straight. Price was not too bad, and I was then sure the crank centerline and bearing supports were correct.

  5. #45
    CliffsidePM's Avatar
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    May 2014
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    My vendor can line bore your cases.

  6. #46

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    Really? Interesting, I didn't think anyone did that anymore. There isn't much clearance in there but I guess it also takes very little material being removed to fix it.

  7. #47

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    Sep 2015
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    I have another mystery. My pistons are part # 010-836-07. As near as I can tell that's a Wiseco platinum piston for an 800 motor. It is 1 mm over, which also matches up to the Wiseco part #. Anybody have any insight?


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