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Buell Forum » Old School Buell » Archive through February 14, 2009 » 99 s3-t rear exhaust lifter came apart at 12300 miles « Previous Next »

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Thunderhead
Posted on Sunday, February 08, 2009 - 06:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

reading the post below i thought i would share some news. my 99s3-t rear exhaust lifter came apart at 12300 miles. destroyed the oil pump drive gear. destroyed 3 of the cams and spun out 2 cam lifter bushing holes in the block. all back together now just waiting on a rear tire.
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Hippyjoe
Posted on Sunday, February 08, 2009 - 08:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Any idea how the lifter failed? Pre-00 are supposed to have the bigger lifters....
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Thunderhead
Posted on Sunday, February 08, 2009 - 08:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

my guy at the machine shop seemed to think they were supplied from the lowest bidder to harley .i replaced them with fueling lifters and andrews n-4 cams.not to mention $1000 in machine work. the same thing happened on my FXR at 30000 miles.
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Buell78758
Posted on Monday, February 09, 2009 - 01:19 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What was the machine work you had done?
CN
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Thunderhead
Posted on Monday, February 09, 2009 - 02:55 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i had to repair the bosses that the cam bushings go in(reweld them and hone to size)rebore 2 lifter bosses and split the case to inspect the rotating assembly, cut down the cam cover for easy access to oil pump and modified the internal oiling to get oil to the cams sooner. the oil now gets to the cams before waiting for the oil to fall down through the push rod tubes
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