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Montesa 248

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I have a Montesa 248

Currently in the process of changing the crankshaft seals.

I have been able to access the seals on the Magneto side but having problems with the clutch side.

I am aware of the possible issues in removing the primary gear but at the moment I am unable to remove the nut on the crankshaft. I know the Magneto end is left hand thread but what thread left or right is the clutch side.

I've tried moving it won't move at all 

Any ideas thank you

 

 

Im sure its a normal r/h thread, im going by my 348 which im sure was r/h, as i needed to take the crank weight off when dismantling. ?

  • Author

Morning

Many thanks for your email.

Will give it a go.

Thank you

Pneumatic or good electric nut runner usually works. This puts less load on the shaft. Use it to undo only, tighten with torque wrench. 

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