Chainsaw Repair

Husqvarna - Stihl - Poulan - Jonsered - Dolmar chainsaws and more => Stihl => Topic started by: stihls066 on March 13, 2014, 10:11:49 pm

Title: Stihl 090
Post by: stihls066 on March 13, 2014, 10:11:49 pm

Fixing for a customer. Oem cylinder looks good has only a minor gouge near intake port. However rings go corroded tight to piston so no compression. Anyone have a suggestion as to a good aftermarket piston that will cooperate with oem cylinder?

Title: Re: Stihl 090
Post by: 660magnum on March 13, 2014, 10:47:07 pm

http://www.ebay.com/itm/STIHL-Chainsaw-OEM-58mm-Piston-Rings-Possibly-For-070-090-G-O70-090G-O90-G-/230444793773?pt=LH_DefaultDomain_0&hash=item35a7947fad

http://www.ebay.com/itm/NEW-OEM-STIHL-58MM-PISTON-RINGS-PIN-CIRCLIPS-KIT-070-090G-MS720-CHAINSAW-/130736611976?pt=LH_DefaultDomain_0&hash=item1e70826288

http://www.ebay.com/itm/NEW-OEM-STIHL-Chainsaw-58mm-Bore-Piston-Rings-Kit-090-G-090G-1106-030-2003-/230751907742?pt=LH_DefaultDomain_0&hash=item35b9e2af9e

I didn't see any 66mm except W/Cyl $$$

Title: Re: Stihl 090
Post by: aclarke on March 13, 2014, 11:14:23 pm

Have a few new aftermarket pistons and rings if you're interested pm me

Title: Re: Stihl 090
Post by: bustedknuckles on March 23, 2014, 10:39:07 pm

Tried soaking the piston to see if you can free the rings? Maybe the piston and rings are both ok. Sometimes they'll get stuck from sitting a long time.

Title: Re: Stihl 090
Post by: jmester on April 11, 2014, 09:58:02 pm

Sea foam works well to free up stuck rings. http://seafoamsales.com/sea-foam-spray/