Boogered thread on Husqvarna 2100 crankshaft

[Mark71gtx]

Haven't posted in a while. Been on a shutdown and haven't had much time. I plan on getting back to my 2100 project soon. The main problem I am having with it right now is the crankshaft threads are stripped. Do I need to split the case ( has not long been put together with all new bearings and seals) and replace the crank, or can I reasonably rethread it? If I can rethread it, what size would you all recommend? Thanks!

"Edit" flywheel side... It matters, lol...

 

[Homemade]

When you say stripped... how bad? Sometimes you can "chase" the threads and have it hold with same sized hardware. Especially being flywheel side, there isn't a ton of force like the clutch side. But if there is no threads left, then a new crank is my suggestion. To get new threads on the remaining material, it will have to be lathed true and undersized.


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[dieselfitter]

The crankshaft and threads are hardened, harder than the nut that holds the flywheel on. Good chance they will clean up with a thread file. Check the pitch and buy the correct one.

https://www.walmart.com/ip/General-...30463&wl11=online&wl12=19688499&wl13=&veh=sem

 

[merc_man]

Pics

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[Mark71gtx]

Thanks for the input so far guys. I will try to get some pics soon. Not too much home time lately.

 

[Lone Wolf]

The crankshaft and threads are hardened, harder than the nut that holds the flywheel on. Good chance they will clean up with a thread file. Check the pitch and buy the correct one.

https://www.walmart.com/ip/General-...30463&wl11=online&wl12=19688499&wl13=&veh=sem

The thread file may do it i had luck with that method.

 

[Mark71gtx]

From my recollection there was not much of a thread there to start with and the nut was completely shot to boot...

 

[Homemade]

How did this happen?


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