44Owner

Good afternoon, took the muffler off the saw this morning and I can clearly see scores on the piston, I’ve attached an image below. Would anyone happen to know the diameter of the piston so I can order one before I strip it all down? I’ll order some new seals at the same time so I can do all the work in one hit. (I’ve got no experience in stripping down and rebuilding things so I’m reluctant to go any further without taking photos at each stage or doing the whole job in one day so I can remember how to put it back together)

Thank you for the advice, I noticed the pull chord has far less resistance than when I first inherited it, so assumed 90psi was low, but couldn’t find any figures for what to expect when I had a quick browse. I’ll get the exhaust muffler off in the morning and have a good look at the piston for signs of scoring then report back. Not sure why it’s having issues, but the saw was my granda’s and is probably as old as me. It started getting very hot the last 2-3 times it was used before it packed up. To my knowledge it’s only ever had general maintenance like new spark plugs, chains and the carb cleaned out so it’s probably just age/use.

Hello, new member and domestic chainsaw user here… I have an old Husqvarna 44 which has recently stopped working. Compression testing shows approx. 90psi - is this considered low or ok? Been advised it may have a scored barrel but I haven’t stripped it down to confirm yet. Can’t seem to find any piston & cylinder kits for this model so wondering if any other models could be used for a straight transplant if the cylinder is jiggered. This is the first mechanical project I’ve looked at so hopeful I can repair it… any advice/guidance would be appreciated!