SOHC.co.uk Forums > CB350/400

Final drive seal

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Athame57:
Is the final drive seal at the sprocket a seal that can be changed without splitting the crankcases?

philward:
Not familiar with 350/400 but could try putting 4 self tapping screws into the seal and drawing the seal out?
If it doesn't work you are only back with splitting the cases. I have done this on seals but not one clamped by crankcase halfs

Bryanj:
No there is a peg on it that locates in a hole in crankcase

TrickyMicky:
Just a random, unprofessional, stupid thought:-  I assume that the reason for changing the seal is that it is already leaking. If as you say, the engine has to be split, the work involved in just getting the engine out is quite daunting just to access a seal that is readily visible. I think I would be tempted to try to remove the seal, by fair means or foul, have a go at removing the tit on the new seal, and tap it into place. If it does not work and still leaks, then put the Heath Robinson manual away, remove the engine and do it by the book. It has cost you an extra oil seal.

Athame57:

--- Quote from: TrickyMicky on July 27, 2023, 08:59:52 AM ---Just a random, unprofessional, stupid thought:-

--- End quote ---
Mickey I don't agree with that, better people than me have asked this sort of question: http://www.sohc.co.uk/index.php/topic,9150.0.html
As it happens I'm not in immediate need, it is just I suspect some seepage has been going on and wonder if I might get away with a short cut if it gets worse.

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