redunshee
Addicted to ArboristSite
Well, let me tell you a tale of not doing proper prep. Have an old 3400 I thought I'd port. Installing the piston I broke loose a couple needle bearings . Thought I found them all. Installed a new piston , started saw and after 6 seconds it locked up. Ruined the cylinder trying to get it off and the piston is shot. Found two needle bearings in the crankcase. Somehow they were intact. Lesson learned.