Partner K950

[ffchewy17]

I was given a Partner/Husqvarna K950 that was not running. PC in great shape, no scoring. Located a small air leak bellow the intake boot at base of cylinder were the crankcase gasket is. During tear down I realized that the flywheel was missing the relating nut. Upon closer inspection the threads on the crankcase were completely stripped.

What's the consensus on cutting new threads on the crank. It was originally M8x1, I measure the OD of the of the crank case threads and it was 7.67mm. I'm thinking about converting it to a 5/16-18 pitch. Any thoughts or experiences are appreciated. Does the k950 share a common crank with another saw? All the OEM complete replacements were $267.00 including bearings. I'm going to either cut the threads or replace crank when I split the cases.

Thanks

 

[smokey7]

Can you show a picture of the crank end and I can tell you if you will be able to run a die on it. I can tell you that 5/16 is too close to use on a 8mm I'd think. I don't think you would have much thread engaged.

 

[ffchewy17]

The person I received the saw from thought the fly wheel side was reverse threaded and used an impact gun. No leaks from either side at the bearings. I'm thinking a local machine shop might be able to re-thread the crank at an M6x1 or 1/4 size.

 

[srcarr52]

I think that is the same crank as a Husqvarna 395XP chainsaw.

Really you can file the snout down and use a die to put new smaller threads on it. The run out of the threads is not crucial, it just needs to keep pressure on the taper.