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Husqvarna 357


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Is that crank an OEM one? Seen this type of carnage on a "Boomerang" MS660 where the owner didn't want an OEM crank in his machine due to cost. Big end detonated in one, the crank sheared in two on the other. Fitted an OEM crank in it, fine for a year and then the pikeys came and pinched it along with most of his other kit. He purchased new kit and not seen him for a year9_9

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Yes they are press fit, when it comes to the final balancing you maybe need the possibility to move it, I have seen this process in the factory, you can sometimes still see a copper mark on one of the Bob weights where the final balance is done.

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Put it back together with some Loctite, it'll be fine ?     (...or not).

 

I tried separating a knackered crank once (MS180) just for interest, tried all sorts of abuse, mostly involving hammers,  couldn't shift it at all. You've been unlucky there. 

Vaguely remember some story about tuned 2 stroke bike engines being assembled and then welded to stop the crank becoming misaligned with use. Don't suppose you need too many degrees of rotation before the crank would seize on a multi cylinder.

 

 

 

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