Stihls with the plastic crank bearing cages..

[CobraChevelle]

Is there a special way to install a crank in case bearings with a plastic bearing cage? I was going to freeze the crank and use heat on the bearings/case until I seen the plastic (cases are new with bearings from Stihl btw). I have the Farmertec tool for the clutch side, but don't have a puller for the flywheel side on a 660. I guess my question is, are you guys still using low heat with freezing the crank or pulling the cases together with the screws?

Thank you.

 

[ballisticdoughnut]

Don’t pull the cases together using the case screws. Freeze the crank, heat the bearings (already installed in the case halves) with a heat gun to 200F or so and gently tap case with a rubber or plastic face mallet/hammer. This process has worked well for me when I didn’t have the factory assembly tools available.