Stihl 034 av super schematics

[641workmaster]

Anybody have a spare crank they want to part with from a 034 or 036?  The cheapest new crank is about $100.  The crank cracked at the "eyelet" and shredded the connecting rod bearing cage, thus causing the piston to fail.   Otherwise the saw is in good, clean shape.

[Mad Professor]

If it is just a rod bearing why was the flywheel rubbing the case?  Are the bottom bearings/case toast too?

Also check over the cylinder as the loose metal may have scored/gouged that too.

Me thinks it's time to find another saw, either to donate parts too, or from.........

[641workmaster]

If it is just a rod bearing why was the flywheel rubbing the case?  Are the bottom bearings/case toast too?

Also check over the cylinder as the loose metal may have scored/gouged that too.

Me thinks it's time to find another saw, either to donate parts too, or from.........

You could be right about the bearings.  I had cleaned them out and there is no visible debris or damage, yet they seem to not be as smooth as my Chevy truck rear wheel bearings.  My thought on the flywheel rubbing is that the crank eyelet crack expanded when hot throwing alignment off.  Then again I'm not a mechanic. 


As far as I'm concerned, this saw is a parts saw.  Unless I can find a donor saw.  Parts from the Stihl dealer would be well over $300 now.  From Baily's...maybe half that.

[Al_Smith]

 Well,things happen 

I have a good lower end in the shed,complete saw with a screwed up top end .However I can get an after market top end cheaply from Baileys for my soup up project it would be in my best interest to do so rather than take a chance on the unknown .

Save the parts,you never know when a donor might pop up .