Air Filter Alert!

[teacherman]

I had quite an experience a few weeks ago. Bought a new air filter for my 026 (13 yrs. old, compression like new) as part of a tuneup, and it ran great for 30 seconds, then this loud rattling in the engine. I took it all apart, and found several thin strips of Brass in the bore! The only damage was to the rear piston skirt. Dealer thought it might be the manifold flange, but that was intact, and it's not brass. I am absolutely convinced that one of those little brass cotter pins that holds the choke assembly on the filter just dropped in accidentally during assembly, and escaped the inspector's watchful glance. (Not that I could prove anything) I cleaned up the piston, used the same rings (the bottom one still had mill marks) and it runs great. However, it took many hours of work, and when I thought the saw was toast, I discovered Stihls on eBay, and this amazing new "disease." I went from a 2 saw guy to a 7 saw guy in a few short weeks. :jawdrop: Yikes. INSPECT YOUR NEW AIR FILTERS PRIOR TO INSTALLATION!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
(It was a genuine Stihl part)
Disease symptoms: Now I watch Predator and Log Hog video clips, email them to others, read up on saw modifications, surf eBay, joined 3 saw forums, etc. Wow.

Once I recover financially, I will enjoy this a lot more. Am itching to get out in the timber. Maybe tomorrow!

They'll know I'd been there.

009, 026, TS 360 AV,+
026, 026, ms 192T, ms 200T, ms 460

 

[blsnelling]

Welcome. Sounds like you're progressing well with your CAD disease.

 

[Erick]

Ahhh yes welcome brother teacherman welcome to the fold.

 

[huskydave]

Welcome and thanks for posting. You might save someone else from having the same thing happen.

 

[bcorradi]

Are you sure the intake sleeve didn't get accidentally pushed into the intake? I'm not sure if it is brass, but they sure look brass looking to me.

 

[teacherman]

Are you sure the intake sleeve didn't get accidentally pushed into the intake? I'm not sure if it is brass, but they sure look brass looking to me.

The intake sleeve was still intact, and apparently made of steel. That's what the dealer thought, though I apparently misnamed it the first time. Thanks.

 

[bcorradi]

Ok...here are pics of the intake sleeve along with the intake. However in order to get a non distorted intake sleeve down the intake you would really have to try lol.

 

[teacherman]

Ok...here are pics of the intake sleeve along with the intake. However in order to get a non distorted intake sleeve down the intake you would really have to try lol.

That piece was intact and in its proper location. It was several flattened pieces of brass, the same size as the wire in the cotter pin an the outside of the filter. I may try to put up a picture of them tomorrow.

 

[Lakeside53]

You should have your dealer talk to Stihl. If that filter did have a loose part, they might help you out.