Topic: Castellated clutch nut removal

[buxtonmick]

Righto, now I'm getting stuck into my project and, like someone said somewhere "an old motorbike is like a box of chocolates..."  Apart from two scored cylinders from broken rings and two snapped exhaust studs (any tips and/or ideas welcome), I've now got to the clutch removal bit.  I've got the tool to fit the nut but will it move?  Nowt.  So before I try anything of my own invention does anyone have the knack to this, namely, how to hold the centre from turning? 

Cheers, Mick.

[HondaMan]

If the engine is still in the bike, you can stick a broomstick through the rear spokes and put it in gear to hold things still. If not, you can hold the crankshaft still with a wrench on the alternator nut on the other side.

[buxtonmick]

Thanks for that. The problem is that the recessed centre plate that the nut is in spins as I turn the nut, not the entire clutch assembly.  i've just thought - should I put back the four bolts?

Cheers, mick.

[HondaMan]

Thanks for that. The problem is that the recessed centre plate that the nut is in spins as I turn the nut, not the entire clutch assembly.  i've just thought - should I put back the four bolts?

Cheers, mick.

Oh, gotcha: yep, the bolts and springs must be reinstalled, and the plates. Add some washers where the top plate is missing. Be sure to tighten them evenly, not lopsided: it can break out the post on the clutch hub if you tighten just one side down at a time.

[camelman]

REgarding your broken exhaust studs, try taking it to a qualified welder to weld a bolt onto whatever is left of the studs.  The heat from welding should break loose any corrosion that is holding them fixed, and will allow you to unscrew them.

Camelman

[buxtonmick]

Thanks for the help folks - I knew there was something not quite right!  The thing still won't move though, the clutch slips.  i've left penetrating oil on it and I'll have another go at weekend.  Aaargh!!!!