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DanielHowden

Changing Crank Seals - Cota 247 - 1971

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I have been looking for information about changing the crank seals on the above bike but not found anything so far.

I wonder if anyone could advise if these can be changed without splitting the cases or not.

Thanks, Daniel.

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Yes they can be changed without splitting the cases. You will need a magneto flywheel puller for the magneto flywheel, and a good stout puller to pull the primary gear on the clutch side. There are seal housings that unbolt from the main engine cases making seal replacement very simple.

Sam

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Really straightforward job... save for removing the primary gear from the crank shaft - brace yourself! There's many a helpful guide on how to, here on TC.

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