thought you all might like to see husky 51 piston

[tones of timber]

what do u think of this husky piston scoring?

 

[slowtorque1]

Wow, what caused that to happen?

 

[Stumper]

Piston scoring-I'll give it an 8. I bought a used Jonsered 590 that looks about the same-runs good.

 

[timberturner]

heck that's nothin

you guys shoulda seen my 066 piston after running lean...

i wasn't sure what severe scoring was, but if that picture is severe than mine was extremely severe

i guess that's not something to brag about , however

 

[stihltech]

scoring

Time to get it apart and see how extensive it is. Also check bearings and rings. All you are seeing is the result of a problem

 

[John in MA]

Aw, that's nothing. My XL-98A demo arrived with rings that had shattered and embedded themselves in the piston and cylinder. A couple rings and a little file work and she's back together. Tough saw. Then there's the 026 that had the rings and piston fused into one solid mass...

 

[tones of timber]

cause of piston scoring

found cause of piston scoring due to a plugged or restricted fuel screen in carb. replaced it with new as well as removed cylinder, and replaced ring with and honed out cylinder runs fine

 

[jsikkema1]

Husqvarna 3120 that got a little hot...
Was used for milling and guy never cleaned the saw. The cooling air fins in side cover were packed so full of crap that the poor saw over heated

Jeff

 

[jsikkema1]

another...

 

[John in MA]

...and that's about what my 026 looked like. Anyone else see the need for a Society For The Prevention Of Cruelty To Aluminum?

 

[jsikkema1]

Here is a collection of bad pistons. I keep them around for conversation... Note 3120 in center- several 026's- I have seen several 026's go this way.