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Never Coming Off! Montesa 247 Primary Gear

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This primary gear is never going to come off.

I started with a small puller, broke it trying, got the gear very hot and used freeze spray. Not a chance.

Then I had a steel cup made so I could use a bigger puller, tried with a 10tonne hydraulic puller, nothing.

This morning I was determined, I've borrow a monster puller, an impact gun, using heat and brute force, still nothing. I give up, the only way this nis ever going to come off is with a cutting disc!

Its a shame, because unless I can change the crank seal, the engine is scrap. :(

puller1.jpg

  • Author

Well you should never say never!

It came off, hoorah!

Thought I would give it one last go, used a fully charged battery on the impact gun, just held it on there for ages, then whack! with the hammer on the end and pop :)

Very pleased :)

If anyone would like to borrow the special cup I've had made,which allows a bigger puller to be used, just let me know..

  • 2 months later...

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