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Buell Forum » 1125R Superbike Board » Archives 001 » Archive through March 01, 2011 » Oil leak from rear head « Previous Next »

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Budgolf
Posted on Wednesday, February 23, 2011 - 12:08 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Anyone had an issue with this? It's not bad, not even a seep. But it's bad enough that I clean it up and see it again all over the back of the cylinder in a couple of days. Wondering if it was just a valve cover. I can't imaging it being a head bolt. The thing runs great. Just getting grimey.
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Ratsmc
Posted on Wednesday, February 23, 2011 - 12:13 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, is it coming from the head cover or the cylinder head?
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Stevek1125r
Posted on Wednesday, February 23, 2011 - 01:09 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i had an issue like this when i first got my bike.
the problem ended up being the rear valve cover gasket.... simple fix for the most part...
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Budgolf
Posted on Wednesday, February 23, 2011 - 06:29 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

It hasn't been bad enough for me to actually go to the trouble of rotating the engine forward to get to it, so I don't know exactly where it's coming from. I'll find out this weekend.
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Jdugger
Posted on Wednesday, February 23, 2011 - 08:50 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Do you just see a film of oil over the back side of the rear cyl?

What about if you take off the seat? Is there some oil spray up in the wires and cables, maybe on the elbow of the swing arm?

Do you ride the bike at upper RPMs?
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Marcodesade
Posted on Wednesday, February 23, 2011 - 09:16 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mine ended up being the head gasket. Bah.
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Budgolf
Posted on Wednesday, February 23, 2011 - 05:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I'll have to really dig into it and find out. I thought maybe it had happened enough to others that remarks might be "yeah, valve cover gaskets were bad in 08" or something along those lines.
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Bueller4ever
Posted on Wednesday, February 23, 2011 - 06:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I could just be the breather puking oil. It's not connected to the airbox worth a damn and could easily come off.
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Jdugger
Posted on Wednesday, February 23, 2011 - 07:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

> I could just be the breather puking oil.

Certain answers to my questions would have resulted in that diagnosis. I often have a thin film of oil back there freshly after an oil change.
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