Stator cover leaking oil - Page 2
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  1. #11
    Senior Member 76TWIN's Avatar
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    It also helps to spray a bit of solvent on the surface as well to soften any old gasket still stuck on. It will make the scraping a lot easier.

    Just take your time and do it carefully not to nick or cut the flat mating surface.
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  2. #12
    Junior Member turnermoto's Avatar
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    Thanks guys. I’ll make some passes on it and report back.

  3. #13
    Senior Member the-chauffeur's Avatar
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    Can I also suggest checking that either the locating dowels are the right length and/or that they're seated properly. I think there are a couple that help locate the cover to the engine face, and it's possible that they're holding the faces apart. Once you've reattached the lager side cover, grab a thin feeler gauge and try to fit it between the surfaces all the way around. That might help you narrow down your search.

    Took me a long time - and quite a bit of oil - to realise I had the longer dowel problem on my CB750, and I've since found that although they didn't help, they weren't the big issue. In my case, the problem is something inside the case pushing against it and holding it away from the engine mating faces.

    . . . make sure everything inside the case is correctly mounted . . .
    Last edited by the-chauffeur; 06-18-2019 at 05:12 PM. Reason: additional info
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  5. #14
    Junior Member turnermoto's Avatar
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    Finally got a chance to get back to the bike tonight and I’m still at a loss here. I cleaned all of the gasket surfaces very thoroughly, replaced the left side crankcase cover gasket and stator cover gasket. Tightened everything down to spec and the stator cover is STILL dripping oil. And it’s a steady drip too. Any suggestions? I’m getting a bit frustrated. I’m the attached pic you can see the drip.
    Attached Thumbnails Attached Thumbnails Stator cover leaking oil-a659c902-07c3-465b-9b54-8fcb12431839_1562030873375.jpg  

  6. #15
    Sensei 66Sprint's Avatar
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    One or both of the gasket surfaces are damaged (scratched across, gasket residue still on it, or warped/not flat) or the gasket is damaged/scratched/torn......
    An enlargeable pic would be helpful....




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  7. #16
    Supporting Member Yendor's Avatar
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    UUMMMM....
    If the Stator COVER was NOT installed it is going to leak.
    As Steve said there is supposed to be oil in there to splash around and provide libe to the starter chain.

    That is why when you do things like TIME the bike and have to remove the stator cover we say to put a 1" block under the left side leg of the center stand to make it lean slightly and REDUCE the amount of oil loss.
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  8. #17
    Senior Member 76TWIN's Avatar
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    Quote Originally Posted by Yendor View Post
    UUMMMM....
    If the Stator COVER was NOT installed it is going to leak.
    As Steve said there is supposed to be oil in there to splash around and provide libe to the starter chain.

    That is why when you do things like TIME the bike and have to remove the stator cover we say to put a 1" block under the left side leg of the center stand to make it lean slightly and REDUCE the amount of oil loss.

    Agreed. But it should not be leaking oil with the stator cover installed like in the pic.
    Something about that pic doesn't look right to me. Either the stator cover gasket looks a bit too thick or the cover itself is not completely seated and sealed.

    I have enlarged the pic so everyone can see

    Stator cover leaking oil-stator.jpg



    Take some close up pics of the mating surface of the left crank case cover when you take the stator cover off as well as the stator cover itself.
    Last edited by 76TWIN; 07-02-2019 at 09:28 AM.
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  9. #18
    Senior Member mike in idaho's Avatar
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    It shouldn't puke oil like that, even with scratches on both gasket surfaces. Pull it off and re-install it without the gasket, snug down the screws and see if you can get a feeler gauge in the crack anywhere around the outside. Those appear to be aftermarket screws on the cover, are they tightening against the cover or are they bottoming out in the holes?
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  10. #19
    Junior Member turnermoto's Avatar
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    I'll take some close up pics this evening.

    The allen bolts are aftermarket, but they are no bottoming out. Everything is torqued to spec. The little rubber seals around the 3 bolt holes are also brand new.

  11. #20
    Senior Member 76TWIN's Avatar
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    O.P

    I had another thought on this. Did you remove the rotor previously? And if so are you sure you re-installed it back correctly with the woodruff key?
    When aligned correctly with the woodruff key, the rotor should just push back on to the crank shaft all the way without using any force. If not, it is possible that the rotor is sticking out further than it should be and not allowing the stator cover to be fully seated.
    Last edited by 76TWIN; 07-02-2019 at 09:39 AM.
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