Stihl MS 311 engine swap

[Opelman]

Got these two in the other day. One has a good handle and frame but junk engine main bearings. Failure looks to be poor air filtration as the intake was loaded with sawdust. The other one has a broken frame from being dropped or a tree dropped on it. Motor looks good in this one. My job, make a good one. New ring set and crank seals are on the way. New Air filter as well.

 

[Cujet]

Looks like a fun project! Time to mod the saw too!

 

[mk378]

Consider it a frame swap. It sounds like the one with a good frame was set aside due to engine problems so you should not use any of those engine parts unless you have to.