Stihl MS270 crankshaft repair??

[ReggieT]

Hey Studs,

Bought this MS 270 on the cheap. Previous owner said he over torqued and sheared the crankshaft on the pull assembly side.
Said it could possibly be tapped out and metal piece could be welded or just replace the whole crankshaft.
As usual I'm out of my skill set/experience on this, hence this thread and cry 4 help!
I do have a best bud who runs a Stihl Shop...and gives me excellent deals.
Just wondering if I could do this myself, besides I see good OEM parts pretty cheap for it.
**Update!!**
I now have another 270 with a good crankshaft...MUST I SPLIT THE CASE?

 

[BuckthornBonnie]

I'd replace the crankshaft. Did he say how he busted that fw nut? Impact driver? Impressive lol.

Yes, "case" split. They're not true mag cases like most pro saws. Instead, they are similar to clam shells but without the distinctive separate pan. Ms280s may share the same crank. I've never rebuilt one.

 

[BuckthornBonnie]

Does the other 270 run?

 

[ReggieT]

Does the other 270 run?

Nope...non runner 4 sure.

 

[ReggieT]

I'd replace the crankshaft. Did he say how he busted that fw nut? Impact driver? Impressive lol.

Yes, "case" split. They're not true mag cases like most pro saws. Instead, they are similar to clam shells but without the distinctive separate pan. Ms280s may share the same crank. I've never rebuilt one.

Just said he was trying to "tighten" it and forgot how burly he was!

 

[BuckthornBonnie]

Salvage that crank from the other saw and build a runner. Use the better top end, maybe new bearings, maybe new rings.

 

[Gamedic287]

Did you ever get one of them running?


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[ReggieT]

Did you ever get one of them running?


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Ain't done ****...except drop it off @ supposedly the best Stihl Shop about 5 weeks ago...and still ain't done.
I'm ok though, between school full time, wife's illness, battling my homeowners insurance over a storm claim, and new meds...I'm stretched out!!

 

[Gamedic287]

Gotcha and good luck with all the above man


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