KZ1000 | Good News and Bad News
BAD NEWS: It’s pissing A LOT of oil from the top end.
GOOD NEWS: My motor is bigger than Ed’s and we all know BIGGER = FASTER
I had to disassemble the top end to find where the oil was coming from. Turns out the previous owner had it bored to 1075 with a Wiseco 10.25:1 piston kit. Not what I was expected to find but pretty pumped.
Earlier when I fixed the cam timing I found that the cam bearing was installed incorrectly causing it to partially block an oil port. That lack of oil looks like it damaged my exhaust cam journals. They’re measuring .961″ (24.41 mm) to .963″ (24.43 mm) which is at the service limit according to the FSM. I wish the previous owner didn’t fuck this shit up. Oh well, now I need a new cam.
There’s been a lot of suspect things in the top end but these are most likely the biggest culprits for the oil leak. Broken cylinder o-rings and a pinched/broken center o-ring.
These photos are just for reference.
Now off to the machine shop to get everything cleaned and checked out.
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Published - Mar 1, 2015
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