Who's running scored pistons in their saws?

[ZeroJunk]

Yeah, the last thing I am going to do is pull a muffler off one of my own saws and look at the piston.

When it quits pulling I'll worry about it.

But, for $40 or whatever a decent piston costs I'm not going to put a scored one back in.

 

[Bob Hedgecutter]

Yeah, the last thing I am going to do is pull a muffler off one of my own saws and look at the piston.

When it quits pulling I'll worry about it.

But, for $40 or whatever a decent piston costs I'm not going to put a scored one back in.

Thats fine if you want to run modern stuff you can still get $40 pistons for and you live somewhere quality parts are that cheap.
But a few scores on an obsolete piston cleaned up with new ring/rings isnt going to revert an old saw into a display item.

 

[huskihl]

In some of my own personal not for sale saws- yes certainly some are running pistons with scoring-

Better question: How many folk are running a scored piston and have know idea it is?

If the World was full of folk like us that like to pull things apart and fix them- all the saw service shops would be closed!

I figure if all those horizontal lines are good (even required by some users) that a couple vertical ones can’t be a bad thing either. The saw wouldn’t have hurt feelings if it knew its piston had some streaks on it

 

[ZeroJunk]

Thats fine if you want to run modern stuff you can still get $40 pistons for and you live somewhere quality parts are that cheap.
But a few scores on an obsolete piston cleaned up with new ring/rings isnt going to revert an old saw into a display item.

That is true. I can put an OEM Stihl piston in my pocket and walk out the door with it and they will say thank you for keeping our shop going. So, there's that.

 

[telecasterfool]

I once bought an Echo cs-4500 for parts. I had a CS-4600 I was repairing. The 4500 was the most beat to hell saw I've seen. Parts of the case were cracked off, and it had been welded at least once. Compression felt okay so I squirted some mix in the carb and it fired up and ran. Tuned it - ran better. Added bar and chain and cut like a banshee. There is scoring - but it runs well. So I put it to work. I've never even rebuilt the carb, it just keeps running year after year. It's one of my favorites, maybe because it defies all logic and runs great!