why me? 372 blown...again

[Mattyo]

Hey....live and learn right?

Problem is...it's so easy to blame the material and just say it's junk....harder to blame the mechanic. I think case....I'm blaming the mechanic.

Cylinder cleaned up nice. Just needs a wash now and new piston.

....

 

[tree monkey]

did you put a new o-ring behind the sleeve?

 

[Mattyo]

See...it buffed out!












I'm kidding. ....kidding!

 

[Mattyo]

Yes....brand new o ring in there. Might could swap it too....but again...one the clutch was cinched down....it held pressure and vac fine

 

[Wolverine]

All the more reason to properly test a saw before you sell it.

 

[blsnelling]

I think the line was causing the stalling in the cuts. ...

In other words, it ran lean in the cut. That's exactly what causes a lean seize. Even a bad tank vent can seize a piston.

 

[Mattyo]

saw is cleaned up... gonna cut a new popup as soon as the meteor piston comes out of USPS limbo. will pressure test and double check the tank vent.

 

[Stump Shot]

Hey....live and learn right?

Problem is...it's so easy to blame the material and just say it's junk....harder to blame the mechanic. I think case....I'm blaming the mechanic.

Cylinder cleaned up nice. Just needs a wash now and new piston.

....

Sounds like two wrongs couldn't make a right.
Is a good example of how quickly things can turn sour, even with our best efforts put forth.
Some times the difference between success and failure is checking it again even though you just did before.
If it were up to me, I put a non hardening sealer on the bushing to hedge my bets.
Good luck Matt, they say third time is a charm!

 

[Mattyo]

funny thing is the 044 doesn't have an o ring! same idea, no o ring. just relies on the pressure from the clutch. obviously I hadn't cinched down the clutch and/or the clutch wasn't capable of tightening properly against the bushing.

I know a lotta guys would put sealer in there, I dunno. seems like ya gotta get it out one day though lol. who knows.

gotta triple check my fuel lines and vent. I've modded the tank vent to vent into the airbox, so i'm gonna triple check that ...especially after brad mentioned it

 

[tree monkey]

I use grease on stihls, won't hurt to add it to husky

 

[Mattyo]

i like that idea... I can use a blob on it... tx

 

[angelo c]

I use grease on stihls, won't hurt to add it to husky

Grease on the case to bearing contact or the bearing to crank (inner lip)point ? SM says to use "sealant" but the factory never does ?
Weird.

 

[Mattyo]

Grease between the crank and pto bushing.

 

[Mattyo]

It really seals at 3 points of contact. ..the o ring sits between the inner race of the bearing....the crank and the bushing

 

[Stump Shot]

This stuff doesn't harden and parts can be taken apart cleaned with solvent, fuel and oil resistant. Works great in the right applications.

 

[blsnelling]

I would definitely not use a sealant. Grease only.

 

[Mattyo]

thanks Brad...

we'll see where I end up with this.

 

[Derf]

I like hylomar blue

 

[huskihl]

I don't think it was the line. I think it was the vac leak. But...I think the line was causing the stalling in the cuts. ...

Only one way to find out. Kink the line off again but run a 372 clutch. Then we'll all know

Better order another piston

 

[Mattyo]

I'll just keep ordering meteors until I get it right