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Buell Forum » Old School Buell » Archive through March 12, 2014 » 2000 S3, Oil Leak « Previous Next »

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Austexs3
Posted on Sunday, March 09, 2014 - 04:00 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
I was out riding my S3, got a huge oil leak coming from under the motor, looks like it was near the oil pump/lines. Oil everywhere, rear tire/rim/fender/swingarm. Lost about 1qt in 60 miles. Got it home, too much oil to find the leak, degreased it and washed it off. Dryed everything off, let it sit overnight. Topped oil tank off.

Next morning,no oil on the ground? Started it, idled for 10 minutes, no oil leak??

Any ideas?? Guss I need to road test it??

Any help is appreciated.
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Essmjay
Posted on Sunday, March 09, 2014 - 04:31 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Check your primary. Follow the overflow line back up under the seat and make sure it isn't what overflowed. If your crank seal went out the engine oil will overfill the primary case and burp out through the overflow. The oil then goes everywhere.
It could easily look like it came from under the motor.
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Buellistic
Posted on Sunday, March 09, 2014 - 04:39 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
For "SAFETY" TRANSMISSION BREATHER HOSES should be run to a CATCH CONTAINER !!!

If you want a copy of OIL SYSTEM Class 101, just PM me ...
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Austexs3
Posted on Tuesday, March 11, 2014 - 11:47 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Finally got some time to chase down the leak.
Essmjay, you were dead on, Oil leak was happening at the overflow on the oil tank. I'll take off the primary & clutch and I'm sure that I will find a bad crank seal.

I'm going to change it myself.
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Hootowl
Posted on Wednesday, March 12, 2014 - 11:15 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
Remember that the clutch nut is left handed.
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Essmjay
Posted on Wednesday, March 12, 2014 - 11:39 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)
You can stop by the hardly dealer and pick up an updated crank seal for a 2000 sportster. There are some good threads here on the procedure for changing it out.
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