MAC Wizards needed
I have read the posts in the “Is this Super 250 too far gone” thread. Does anyone have any fresh tips on how to remove and reinstall a wrist pin without a press on a SP81/PM850?
Also before I crack open the crankcase, does anyone have any thoughts on why the piston rings don’t extend beyond the piston on a PM570 that shows little use and has a piston and cylinder that look good (at least when viewed through the exhaust port)? In my extremely limited experience the piston melts on the exhaust side. I don’t think someone has flipped the piston but they could have as I don’t know the saw’s history. The saw only shows 60 psi (and this is after cranking it with a ½" drill). I have a NOS piston and rings but I would rather just replace the rings if that is all it needs (same wrist pin dilemma). On the other hand if this is an indication that the saw is junk I’ll just use it for parts.
Thanks, Ron
I have read the posts in the “Is this Super 250 too far gone” thread. Does anyone have any fresh tips on how to remove and reinstall a wrist pin without a press on a SP81/PM850?
Also before I crack open the crankcase, does anyone have any thoughts on why the piston rings don’t extend beyond the piston on a PM570 that shows little use and has a piston and cylinder that look good (at least when viewed through the exhaust port)? In my extremely limited experience the piston melts on the exhaust side. I don’t think someone has flipped the piston but they could have as I don’t know the saw’s history. The saw only shows 60 psi (and this is after cranking it with a ½" drill). I have a NOS piston and rings but I would rather just replace the rings if that is all it needs (same wrist pin dilemma). On the other hand if this is an indication that the saw is junk I’ll just use it for parts.
Thanks, Ron