Uh......there's more.

The flywheel poles sliding past the coil will create some resistance. I thought if the coil was removed you could eliminate that as a contributor to the notchiness.
If you can discount that, I’d say there’s an issue with the bearings or the crank run out, or both.

 

I'll try removing the flywheel. Are you saying the magnet is that strong that it would create that resistance? If it spins perfectly smooth with the flywheel off then that's it.

And btw you said pull the coil and I misunderstand that as pull the rope. I'll disconnect the coil before I take off the flywheel and try that tomorrow. Thanks.

 

Ok scratch that I ran out to the garage and sure enough you are correct M2theB . The magnet on the flywheel is so strong on that saw it was immediately clear that it was interacting with the coil.

Phew! No bearings needed! Woo hoo! Thanks a lot. I really appreciate it.

 

The latter. Remove the coil and leave the flywheel on to turn the crank. See if there’s a difference. If the notchiness is still there, it’s an issue in the rotating element….bearings or crank.

 

Well it ain't perfect but pretty good. Got most of the aluminum transfer out of the cylinder walls and got most of the carbon buildup on the exhaust port. There was some orange gasket maker on the muffler port which was weird.

As I'm waiting for the parts for this MS660 I'll start rebuilding the Husky 372xp tomorrow.

 

Took the first steps to rebuilding the 372xp x-torq today. Scraped the case gaskets off with a razor, sanded lightly, and then used my harbor freight bearing puller which works absolutely amazing.

Only took a few taps after heating it up the case a little. Woo hoo. Waiting for the parts washer. This thing is gross.

 

Pressure washer will work to clean that stuff easy if you have one. I soak in hot water and purple power first.

 

I have one but it's winter. Although it's super hot today.....I keep my spigot disconnected until it's consistently above 40 or so. I don't need any hoses bursting.

I think a parts washer will be nice. I kind of wish I had pulled the trigger on it earlier.

Just ordered a 20-gallon Jegs and also ordered a submersible pump meant for petroleum based solvents along with the Oriflo washing brush, a remote oil filter mount.

Now I have to figure out where the hell to put it. I have a lot of dirty saws that need to be warshed.

 

Lol, I looked at your pic, and Husky dumpster came to mind. I’m sure you’ll do great getting most of them running.

 

Haha thanks it's getting a bit crazy. And that's the cleaned up version!!

 

Thanks!

Well just to be clear I only scored the opportunity to learn more about a bunch o' different saws and fix 'em up. He didn't give them to me. That said that's still a score in my book. I'm excited to bring these babies back into service and definitely looking forward to the edumacation.

 

Yeah it's super satisfying. I am trying to fill my time with satisfying endeavors and this is certainly right up there.

The only brand new saw I ever purchased was my first one - the Makita 36v 14" cordless back in Oct-2019. I'm currently also overhauling this 028 from ~1983 for my buddy.... Bought it from FBMP and it was missing a whole bunch of stuff......last thing I was waiting for (or so I thought) was a set of new springs for the clutch.....and got them today. After I put them on the chain brake wouldn't engage and I noticed that the one of the 5mm x .7mm e-clips was missing from pivot point below the handle. I'm glad I caught that before giving it to him because I had tested the brake before after replacing the missing spring......and it had worked then.

You can see the missing clip below.

 

Ms660 replacement Meteor piston, rings, wrist pin, circ clips.

Still waiting for the wrist pin bearing.

Will reuse the old cylinder gasket with some 1184 on both side. Weird how the gasket doesn't fit around the piston. You have to install the gasket first and then the piston.

 

If you use the meteor clips, snip the bulk of those big ears off

 

I'm guessing they have a tendency to unclip themselves and cause a catastrophic failure yah? Thanks for the tip will do.

 

The added mass can snap off and also can cause them to come unseated. If oem is the same wire diameter I’d go that route

 

Thanks. Just as an aside the clips that came with the 372xp Meteor piston did not have those big ears......

Another slightly off topic question - is naphtha safe to use as a solvent in a parts washer to clean chainsaws? Specifically I'm worried about all the hoses and especially the seals. Any experience with it? It would be nice to be able to clean a saw that does not require a complete split up a bit but of course I'd hate for the naphtha to swell up any rubber bits. I'm getting a parts washer and planning on using TSC PSC 1000 as a solvent.

 

I use parts washer solvent, but I believe it’s mineral spirits