NOS Stihl 044 Piston question

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

Esq1997

ArboristSite Operative
AS Supporting Member
Joined
Apr 6, 2020
Messages
145
Reaction score
233
Location
Massachusetts
Good afternoon-

I acquired a NOS Stihl 044 piston for a build I have planned. Unfortunately it has surface corrosion and my tech won’t clean or install it. Is there a way to safely clean surface staining/corrosion or do I need to find a new piston? My guy won’t use aftermarket parts so a meteor piston won’t work. (I know, maybe I need a new tech.)

Thank you for your thoughts.

IMG_4329.jpegIMG_4328.jpeg
 
Honestly that piston doesn’t look that bad. First remove the rings. Next scrub it down with a plastic bristle brush, dish soap and hot water. Could use an old tooth brush to get at the underside. Basically you wanna get the loose/crusty stuff off of it and out of the ring grooves. If your “tech” won’t use it after all that just assemble it yourself.
 
What has happened is the piston got anodized(aluminum oxide)
Even cleaned, the Al2O3 will eat the bore.

cliff
 

Latest posts

Back
Top