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37 Posts
Hi there,
It has been ages since I posted here, but I'm pretty stumped on something. I have oil leaks from the oil cover (major ones), crankcase cover, kickstart lever, and the cam box.
I pulled the old rubber gasket from the oil cover* and replaced it with a fiber one I bought online. I was told that this is wrong, this requires an o-ring and NO gasket. I pulled the gasket and put the correct o-ring in (I had plenty of them from the search when I had to replace the one on the inside of the crankcase cover, I believe 63.5mm or something) and cinched everything back down. That cover will NOT go down snug on the crankcase cover. It doesn't even come close, it just stops, evenly, with a gap that you can see light through.
I'm curious as to what I could be seeing, if I'm wrong about any of this, and why this might be happening. Alternately, is this just something I should ignore, dump oil in the bike and move on? Please shed some light if you can.
I'm attaching a side view so you can see the gap.
*I'm talking about the cover that houses the oil centrifuge and is round, about 3.5" diameter, and has 3 screws with 2 oil jets.
Notes: 1968 CB350, Rotella T4
Also: How do you get all this tarry gunk off of your exhaust pipes from oil leaks?
It has been ages since I posted here, but I'm pretty stumped on something. I have oil leaks from the oil cover (major ones), crankcase cover, kickstart lever, and the cam box.
I pulled the old rubber gasket from the oil cover* and replaced it with a fiber one I bought online. I was told that this is wrong, this requires an o-ring and NO gasket. I pulled the gasket and put the correct o-ring in (I had plenty of them from the search when I had to replace the one on the inside of the crankcase cover, I believe 63.5mm or something) and cinched everything back down. That cover will NOT go down snug on the crankcase cover. It doesn't even come close, it just stops, evenly, with a gap that you can see light through.
I'm curious as to what I could be seeing, if I'm wrong about any of this, and why this might be happening. Alternately, is this just something I should ignore, dump oil in the bike and move on? Please shed some light if you can.
I'm attaching a side view so you can see the gap.

*I'm talking about the cover that houses the oil centrifuge and is round, about 3.5" diameter, and has 3 screws with 2 oil jets.
Notes: 1968 CB350, Rotella T4
Also: How do you get all this tarry gunk off of your exhaust pipes from oil leaks?