064 stihl cylinder fixable?

[421SD]

I took the piston off and looked down in the case to see if there's a seal on the inside of the bearing. NOPE not that I can see. I'll try and take a pic. after work. If it wasn't for the idling down when tipped you would never know. And even that wasn't consistent. I used it to cut up a good size tree that got blown down a couple of weeks ago. Ran good wasn't doing the idle down thing. But the tree was already on the ground for the most part.

 

[421SD]

Think I'm gonna stick the cylinder and the piston back on it and do a leak down/ pressure test just to see.

 

[jmssaws]

No point in a vac test,it will fail.

The bearing is flush so where is the extra that should be sticking out?
Crank all the way to the flywheel side?

I've not seen that before.

Does it have a flywheel side bearing on the pto side?

 

[BuckthornBonnie]

Think I'm gonna stick the cylinder and the piston back on it and do a leak down/ pressure test just to see.

Split that case, man. New oem bearings (they're reasonable now).

 

[BuckthornBonnie]

No point in a vac test,it will fail.

The bearing is flush so where is the extra that should be sticking out?
Crank all the way to the flywheel side?

I've not seen that before.

Does it have a flywheel side bearing on the pto side?

The bearing is either in backwards or a 6203? regular bearing is installed making a seal impossible.

 

[421SD]

Got some more pics. That's the clutch side from the inside. Can't get a real good one not enough room. There is a plastic cage on the bearing but no seal.

 

[Mattyo]

That is a 385xp husky oem bearing in a stihl chainsaw. There is an integral seal on the clutch side.

 

[jmssaws]

Looks like a flywheel side bearing to me

 

[Mattyo]

That's not a stihl bearing....

The seal you have is likely the pto side seal for the oem stihl bearing....which is configured differently than the husky.

 

[jmssaws]

That is a 385xp husky oem bearing in a stihl chainsaw. There is an integral seal on the clutch side.

There the same dimensionally?

 

[Mattyo]

Apparently. ....I've wondered this myself. They are all 6203s....sorta

 

[Mattyo]

Yep....husky oem for sure. ..and I see a small rip. But that explains why it did run....it is sealed....mostly

 

[Mattyo]

https://www.google.com/search?q=390..._AUICSgB&biw=360&bih=559#imgrc=dT2YQIM9KgpFSM:

 

[Mattyo]

 

[421SD]

Another pic. from the outside. It's the clutch side haven't pulled the flywheel. Don't have a puller yet.

 

[JonCraig]

What's the history of the saw. Your friend rebuilt it?

 

[421SD]

Husky bearing on a Stihl. Got my self a hybrid! lol

 

[421SD]

Not sure the whole history he had it for a long time. He is not mechanicaly inclined, if it did get rebuilt he had a saw shop do it. I'll try and find out some more history on it.

 

[Mattyo]

Yep it's a husky

 

[Mattyo]

Supposedly that seal is replaceable but it is proprietary from Husqvarna