SOHC.co.uk Forums > CB350/400

Final drive seal

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McCabe-Thiele (Ted):
I would suspect that the seal has failed due to corrosion on the shaft creeping from the chain wheel end.
In that case the shaft has to be sorted so cases need splitting.

Oddjob:

--- Quote from: McCabe-Thiele (Ted) on July 27, 2023, 11:14:17 AM ---I would suspect that the seal has failed due to corrosion on the shaft creeping from the chain wheel end.
In that case the shaft has to be sorted so cases need splitting.

--- End quote ---

You'd think wouldn't you but in actual fact the spacer that the seal runs on isn't part of the shaft, I always thought it was machined in place but it's just knocked on. Sometimes you can get away with it by reversing the spacer OR even better having a new one made, maybe Max could do one in stainless?

McCabe-Thiele (Ted):
I thought the 750 might be like the 400 or is the 400 a fitted on part as well?

Does not sound any easy job to remove the part from the shaft in situ.

Oddjob:
I think they are all built the same way Ted, could be wrong, all I can say 100% is that the 500/550 one is as I removed one earlier this year, up to that point I didn't think they were removable.

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