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[gak]

Trying to remove my 62 Interceptor magneto for repair. Best way to remove the mag drive cog to facilitate its removal?

[Lou E]

Remove timing cover/ undo the nut in the center of the mag sprocket/keep unscrewing as this acts as a jackscrew against the end of the maneto armature shaft, and pulls the sprocket off the taper.....

[gak]

Thanks Lou
The nut is off the shaft, the mag sprocket has not come off the shaft with the nut.

[vince]

Hi, the self extractor are on A/R sprockets. If you have a manual advance ,the sprocket should have a internal thread for an extractor. Alternatively give the sprocket a light tap with a hammer it may come off depending how tight the tapered fit is! Vince

[gak]

Thanks Vince

Yes that is what the sprocket looks like. By any chance do you know what the sprocket's internal thread is as I've tapped and used a puller without effect. Geoff

[Lou E]

good point my mag is a K2F with auto adxance

[vince]

Hi, I think the extractor is the same as that for a bullet, if I can find my spare sprocket I'll check. Vince. Ps did you give the puller a thwack to shock the taper?

[Lou E]

If gently smacking the puller while it is under pressure does'nt do it try heating up the sprocket with a propane torch then smack the sprocket

[gak]

Thanks Lou E
Plan for tonight - will let you know. Puller, tapping and heat. Geoff

[gak]

Eventually had to make a tool to release the sprocket. Internal thread of the sprocket is 5/8 BSC if anybody is interested. Mag away for repair.
Thanks for those who replied. Geoff