The Burning Rom
ArboristSite Operative
I picked up an immaculate 075ave on eBay last week. Other than a mushy sprocket side handle mount, a small crack in the top handle, and some burnt paint on the muffler cover (along with the auto oiler knob I accidentally broke off :censored, the thing looks like it's hardly ever been used in it's 32 year life. The muffler even has 60% of it's original paint!!!!!
The other blemish of course is the seized piston I tore the saw all the way down to the long block. There was some surface corrosion on the piston. When I pulled the plug out, some swampy water came oozing out :censored: I can see that there is some pitting in the top of the cylinder. While it's possible the pitting will not interfere with the rings, it is probably..unfortunately...junk. Problem is, I can't get the thing off to check it out any closer. I've been spraying it down with PB blaster since the teardown. I lightly tapped on it for a while with a plastic punch and plastic mallet through the plug hole. That did nothing. I also removed the check valve from the compression tester gauge extension and hooked it up to the air compressor....ran 140psi into the cylinder for around 6 hours last night. I was in the house for some Christmas celebrations, but I kept listening for a bang in the garage. I pulled the air before heading to bed to let it soak standing up overnight. If I wasn't heading back to Milwaukee today I would let it soak more (and I may have no choice but to let it soak anyway), but I was just wondering if anyone else had any ideas. The P&C may both be junk, and I see there's an aftermarket set on eBay that may suit my needs...given I'm not going to put many hours at all on this saw. And in the end, that's probably what I'll end up putting in here, but I'd like to hold off on pulling that trigger until I know for certain that what I have is no longer usable. Any ideas are welcome! This will be a fine example of the 075/076 series once it's all back together
P.S. - I didn't take any pics of it fully assembled as I was eager to get at the piston, but I have some pics of the cleaned up block and some of the other non-cleaned up pieces that I can post if someone really NEEDS pics
The other blemish of course is the seized piston I tore the saw all the way down to the long block. There was some surface corrosion on the piston. When I pulled the plug out, some swampy water came oozing out :censored: I can see that there is some pitting in the top of the cylinder. While it's possible the pitting will not interfere with the rings, it is probably..unfortunately...junk. Problem is, I can't get the thing off to check it out any closer. I've been spraying it down with PB blaster since the teardown. I lightly tapped on it for a while with a plastic punch and plastic mallet through the plug hole. That did nothing. I also removed the check valve from the compression tester gauge extension and hooked it up to the air compressor....ran 140psi into the cylinder for around 6 hours last night. I was in the house for some Christmas celebrations, but I kept listening for a bang in the garage. I pulled the air before heading to bed to let it soak standing up overnight. If I wasn't heading back to Milwaukee today I would let it soak more (and I may have no choice but to let it soak anyway), but I was just wondering if anyone else had any ideas. The P&C may both be junk, and I see there's an aftermarket set on eBay that may suit my needs...given I'm not going to put many hours at all on this saw. And in the end, that's probably what I'll end up putting in here, but I'd like to hold off on pulling that trigger until I know for certain that what I have is no longer usable. Any ideas are welcome! This will be a fine example of the 075/076 series once it's all back together
P.S. - I didn't take any pics of it fully assembled as I was eager to get at the piston, but I have some pics of the cleaned up block and some of the other non-cleaned up pieces that I can post if someone really NEEDS pics