Broken down in Nova Scotia

[kommando]

The sprocket can be hard to get off as its on a taper and its a shallow grippy one, heat and a copper mallet can work when the puller is not stiff enough. If you move the gearbox forward then you may get enough room to fit the chain with the rotor on. Its going to need moving anyway with fitting a new chain in order to tension it properly. Make sure the rear chain has enough slack to allow the gearbox to move all the way forward.

When you do the final chain retension follow the correct sequence or the rear chain will pull the gearbox backwards and give you a tight primary chain.

Mixed rotor up with sprocket, corrected.

 

[Supercat]

Have rotor finally off. Now the front sprocket struggle…

 

[Supercat]

Have proper puller on front sprocket, but it is also being exceedingly difficult. Have tried heat and penetrating lube. Any suggestions?

 

[Supercat]

And proper sequence would be to properly tighten the top and bottom bolts after correct adjustment right?

 

[Supercat]

But still do now have front sprocket off…

 

[Supercat]

Do not have front sprocket off I mean.

 

[kommando]

And proper sequence would be to properly tighten the top and bottom bolts after correct adjustment right?

No, its the last action in the tension sequence is to pull the gearbox forward enough so its against the front of the top and bottom bolt in the gearbox mounting holes so the stronger pull of the rear chain is pulling the box back against an immovable object. So start with a tight primary chain and pull the gearbox forward with the adjuster to achieve the right slack. If you go too far then go back too far before coming forward again.

Get the puller as tight as it will go, then apply heat and large hammer, it will let go with a bang but should not go far.

 

[L.A.B.]

It mentions in the manual about shocking the sprocket with a soft metal drift but all I've ever done is to tighten the central bolt and then hit it with a hammer, if necessary retighten the bolt after a few hammer blows.

 

[Supercat]

Thanks Kim Mandi. Will keep trying

 

[L.A.B.]

According to the late Mick Hemmings he used to tighten the two sprocket bolts rather than the central bolt to pull the sprocket off.

 

[Supercat]

It mentions in the manual about shocking the sprocket with a soft metal drift but all I've ever done is to tighten the central bolt and then hit it with a hammer, if necessary retighten the bolt after a few hammer blows.

Thanks!

 

[Supercat]

Trying heat, hammer, with puller super tight and still on there… and I’m running out of time

 

[hhh]

Not sure if it's been mentioned yet, but make sure the puller's threads are all lubed with something like moly grease.

 

[Supercat]

Not sure if it's been mentioned yet, but make sure the puller's threads are all lubed with something like moly grease.

Do you mean the threads on the centre bolt?

 

[Supercat]

Mark did put oil on the puller threads, but not grease. Have been applying heat and tapping it but still no luck…

 

[concours]

Mark did put oil on the puller threads, but not grease. Have been applying heat and tapping it but still no luck…

Black moly grease on the threads of a quality puller.

Crank the puller up. Heat it more. A lot.

 

[concours]

 

[hhh]

Do you mean the threads on the centre bolt?

Whichever ones you're turning.

 

[Supercat]

Still no luck…. Breaking to have a quick bite to eat and then going back to it

 

[Tornado]

Still no luck…. Breaking to have a quick bite to eat and then going back to it

Try what LAB posted as per Mick Hemmings...torque on the two bolts of puller into sprocket to work sprocket off. Needs good hard whacks with a decent sized hammer to setup enough vibration to help bounce the joint apart.