Hey guys. This is my first post here, I actually stumbled on this forum by accident.
My dad gave me his last falling saw about ten years ago, a 2100CD. He used to fall for P&G up here in northern Alberta in the late 70s and early 80s. He said that he wore out 3 2100s in that time. It was fully operational but the engine was very weak. I've lightly used it since for fetching firewood etc. The hardest work it's had was cutting larger wood hauled out of the bush by our snowmobile club. I put a 26" bar and 3/8 chain on it as it was just the power head when I got it.
He had given it to his younger brother for him to fall with and his brother had carried it in the airbox cubby of his excavator at work for a long time (probably a few years). It cracked the plastic intake boot during this time and he continued to run it. We got lucky as it only lost a small piece of piston and only picked up 3 deep scratches in the cylinder wall. The head has some detonation marks and the piston crown was damaged as well as the webbing on one port was broken.
A friend of mine and I are really into woodworking. I build gun stocks and he builds tables and cabinets. He's built a custom mill set up utilizing my saw. It uses a steel frame with an integrated drip oiler and additional oil tank. This got me wondering about freshening its engine up. It wasn't starting very good anymore etc. As could be expected given what I found internally.
Yesterday I put it back into service after a few weeks of looking for a cylinder. Basically I gave up on that idea for now. I lightly lapped the inside of the cylinder with lapping compound on the old piston in the same way you would hone it. I smoothed the edges of the ports and any rough damaged spots. I removed the piece of piston from the head. Then I installed a new golf piston and rings. Now it sounds and runs just like it did when I was a kid. I can't wait to get it out and do some cutting with it again, load of tamarack is on the menu one night next week.
I'm thinking of trying to find another cylinder, good or bad. I'm wondering if any of the cylinder repair shops like Adrian Bernard in Quebec can rebuild these? They have done pretty amazing things with mod sled engine cylinders I've had. I had one drop a whole skirt off one time and they repaired it. A few scratches in the NiCasil should be nothing for those guys.
Now I just need the air filter cover for it (mine was split a long time ago and finally fell in half last winter) and to give the saw a good cleaning and it's ready to work again.
Thinking I'd like to find another saw for the mill down the road though as this one is a neat keepsake from a time in my dads life that he was pretty fond of. As he's a retired faller, and so is this saw, maybe it should just occasionally come out to play.
I'll see if he can find any pictures of him at work with it back in the day and I'll scan them and post them here.
Brandon