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4T flywheel removal


thall1
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Is the flywheel securing nut Lh tbread?

also, what about the threads on the flywheel itself where you screw in the puller… M32x1.5 I think?.. left or Rh thread?

(cant see why it should be Lh but you never know?!)

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6 hours ago, thall1 said:

Yes probably should have done it whilst still in the frame!. 
so just to confirm, you think the crank nut is RH thread?

That would be the correct way for the nut to tighten as a result of the engine firing, if the engine had to spin in the opposite direction it would need a reverse thread.  If it had a reverse thread it would need something to positively stop (locking washer) the nut from loosening off in operation.

Nobody puts a left hand thread on anything that does not absolutely require it, too expensive.

 

Edited by lemur
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Thanks guys… I’ll have a go later

i can confirm it’s rh thread.. 

one person holding the engine and me on a  breaker bar and it came free… just waiting for a flywheel puller now 

Edited by thall1
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You don't have an air impact or electric. Is the clutch side still togethet that you could hold the crank from turning by the rear sprocket. All tbis should have been done before engine tear down.

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1 hour ago, lemur said:

Bring the puller up tight as you can and the give the puller a blow with a weighty hammer, let inertia do the work.

Someone else said too me… but taking a lump hammer to a precision shaft sat in bearings in an Ali casing just goes against the grain!… if all else fails I’ll give it a go!… thanks! 

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9 hours ago, thall1 said:

I do have both but haven't tried them yet. 
Yes I agree , probably should have come off whilst still in the bike…hindsight is a wonderful thing!.. 

How to go about doing things is all available on the internet , do your research first before attempting any jobs that you know nothing about , it is so much easier and there will be less chance of damage occurring.

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