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Oil Filter Blowout 16 May 2022 08:45 #867153

  • CobraTwo
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I changed the oil and filter in my 1978 KZ650.  I also changed the O-ring on the filter cover.  Took the bike to work (about 4 miles) and was on my way home (about 1/2 mile from home) when the filter cover popped out a little bit.  Needless to say, it was pushing the oil out.  I made it home and found oil pouring from the filter cover.  I tried tightening the cover bolt, only to have it pop out.  Ordered a new bolt, and this one seems worse.  Any ideas on a repair?  I greatly appreciate it.

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Oil Filter Blowout 16 May 2022 08:50 #867155

  • martin_csr
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Stripped threads?  I'd say you'll have to drop the oil pan to get a look at the oil pump.

edit: ps: after doing the repair, be sure to use a torque wrench. If you do a helicoil type repair, you may have to modify the torque setting. ???  If the oil filter bolt threads are damaged, you may need to replace it. 
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Last edit: by martin_csr.

Oil Filter Blowout 16 May 2022 09:26 #867156

  • zed1015
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Sounds like you have possibly stripped the threads in the crankcase.
Helicoil type repair would be the way to go without pulling the engine apart.

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Last edit: by zed1015.
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