Sure is quiet in here....do I need to start a fight?

[BigDaddyR]

Okay since I can't find the multi quote option on the wife's iPad here's what I may Have figured out.

Went back to basics. Spark checked out okay, wet inside -have fuel, air filter clean. Flywheel good.

Compression test -not so good and no scoring I can see. I think I know what happened. Will need some verification though.



Anyone know the difference in an EPA or non-EPA ring on these?

 

[roncoinc]

Drugs got me Ron ! LOL

Having a late lunch , BBQ Beef samiches ! Good stuff ! Working on muh 3rd one ! LOL

Durn,,all i gots is seefood !

 

[BigDaddyR]

Verified operation on another saw also and it was at 160 PSI

Rick

 

[farrell]

EPA version piston is dished I believe they are same diameter and rings

Wait they had to different sizes I'm pretty sure 44mm and 45 mm?

Old ones were smaller

 

[sachsmo]

Gotta go git me s'snow caster' pinned on.

check in later.

 

[BigDaddyR]

EPA version piston is dished I believe they are same diameter and rings

Wait they had to different sizes I'm pretty sure 44mm and 45 mm?
Old ones were smaller

I know the rings were two different #s but have the same cylinder and didn't think it would matter. Piston and ring seemed to go in very easy and slide very easy. I'm thinking it would have been smart to at least measure ring gap. With no scoring I'm thinking the wrong ring.

 

[farrell]

I know the rings were two different #s but have the same cylinder and didn't think it would matter. Piston and ring seemed to go in very easy and slide very easy. I'm thinking it would have been smart to at least measure ring gap. With no scoring I'm thinking the wrong ring.

Check ring gap then!

 

[Stihl 041S]

Durn,,all i gots is seefood !

MEEEN!!!!
Hey Ron!!
Hey All!!!!

 

[farrell]

MEEEN!!!!
Hey Ron!!
Hey All!!!!

Hey Rob!

 

[BigDaddyR]

Durn,,all i gots is seefood !

You suck! LOL

 

[BigDaddyR]

Check ring gap then!

Yep. Which requires disassembly and clean up of the sealer I used. GRRR. I hate redoing stuff. This saw has been a pain in the ax but I sure have learned a lot.

 

[tbone75]

EPA version piston is dished I believe they are same diameter and rings

Wait they had to different sizes I'm pretty sure 44mm and 45 mm?

Old ones were smaller

44mm are open port unless its a 346 , then its closed. 45mm is closed port with dished piston. 353 has flat top piston with the same jug as the 350 , 45mm. Real stupid thing to do I think ! Must have been in Germany that day ?

 

[farrell]

Yep. Which requires disassembly and clean up of the sealer I used. GRRR. I hate redoing stuff. This saw has been a pain in the ax but I sure have learned a lot.

Valuable learning experience!

 

[tbone75]

Someones here ? BBL

 

[farrell]

44mm are open port unless its a 346 , then its closed. 45mm is closed port with dished piston. 353 has flat top piston with the same jug as the 350 , 45mm. Real stupid thing to do I think ! Must have been in Germany that day ?

Nothing like makin things complicated!

 

[BigDaddyR]

My jug is stamped 45 on the top. I guess by closed port were talking transfer ports. Closed port on mine. Here is the IPL Shows two different part#s for pretty much everything.

 

[Scooterbum]

Verified operation on another saw also and it was at 160 PSI

Rick

Looks like wrong size ring. Or you still have some aluminum buildup.

 

[farrell]

EPA and non EPA numbers

Plus the other saws that use the same chassis

But once again old 350s 44mm new 350s 45mm. Any chance you got a 44mm ring?

How was the squish?

 

[Stihl 041S]

Hey Steve.
Hey Adam.
Hey Rick.
Round turny things today.

 

[Scooterbum]

Hey Steve.
Hey Adam.
Hey Rick.
Round turny things today.

Hey Rob !!
Happy New Year Buddy !