Clip scored 266 jug - use or not?

[Tor R]

Cylinder has an old clip scoring, upper-lower transfer.
Cant see anything wrong on the piston, perhaps he exchanged it.

Question is, can this jug be used?

Also, there is double cylinder gasket, was that normal?

 

[nmurph]

That cylinder will be fine. I would make sure there is no metal standing proud of the wall bf assembly.

I've never seen two gaskets. Some P/C kits came with a thicker base gasket to reduce compression so the saw would run on the lesser quality fuel often found in the third world countries. I would measure the squish bf I put it back together, and eliminate as much of the clearance as I could get by with.

 

[redoakman]

Lucky he didn't blow that tab off I've seen a lot with that broke off . 2 gasket that's a first.do what nmurph said above and then run her till the cows come home

 

[Tor R]

Thanks alot for the fast reply nmurph and redoakman.
It was what I hoped for.
I totally agree with both of you to check the squish, clueless why they put 2 gaskets. I will get it done today.

My guess is that he clip scored it, delivered to the shop for ages ago for a repair.
Eventually the saw stop due a carb screw who broke and somehow its not scored by that either. Seems to be a lucky saw lol

 

[LegDeLimber]

just a half flippant thought....
Random opportunity for a "Bridge Port" experiment ?

 

[Tor R]

just a half flippant thought....
Random opportunity for a "Bridge Port" experiment ?

I've never done a bridge port before, would be a first.
Any guide for a 266?

 

[LegDeLimber]

Best I've got would be some mooching from some of MasterMinds threads.
Search is only getting me this one thread as for having any pics.

iknow i've seen some others, But no luck in my search fumblings this morn.
http://www.arboristsite.com/community/threads/ms660r-vs-ms661r.271820/

 

[Tor R]

Looks like the bridge port is more against the intake side

 

[Tor R]

Squish is about 0,35mm, should be 0,014".
With gasket it will be around 0,75mm (0,030")
Sounds very weird that they used 2 gaskets

 

[nmurph]

I would add a gasket made from an aluminum can. I don't know how thick they are in Norway, but in the US they are about .004-.005". That would put you right in the sweet spot.

 

[redfin]

My local Still dealer told me he once doubled up two gaskets for an older fella that was having trouble starting his saw.

 

[stihl041avhog]

My local Still dealer told me he once doubled up two gaskets for an older fella that was having trouble starting his saw.

lowers compression

 

[burnses]

its a mini finger port.....might have been double gasketed for lower octane fuel or just a mistake...

 

[Tor R]

I appreciate all the input people provide.

I have been s bit away for a few days, have a couple dachs dogs where the old one have got a disc issue.

I think they put two gaskets when they exchanged the piston for some reasons, dont know if it was start issues, octane problem, or just by a mistake.

Will try to put her together this weekend, check spark and those things before I put money in her.
266SG/XPG is rare here in Norway.

nmurph, I never thought about that one, great idea, will buy a coke tommorow, should bring her up in a nice compression.