064 stihl cylinder fixable?

[421SD]

Thanks for the info! I have new crank seals for it. Going to make a flywheel puller on the lathe at work tomorrow. I needed to get a new vaccum tester anyway. Thanks again.

 

[421SD]

Here are a few more pics. of the pump I modified.

 

[421SD]

Ok got another question the new seal I have looks nothing like the one that's in the saw. Am I just looking at it wrong?

 

[BuckthornBonnie]

Seals have some variations. The one that's marked "wrong" looks like most AM seals I use.

 

[BuckthornBonnie]

Ummm... is that the pto side?

 

[BuckthornBonnie]

Bearing in backwards?

 

[BuckthornBonnie]

 

[BuckthornBonnie]

First pic above shows Stihl's proprietary pto (clutch) bearing for 1122s. Granted it's an AM knockoff but same design. See the recess in the second pic? That's where a seal should go.

The third pic could very well be what we're looking at. Meaning, the bearing is in backwards.

 

[421SD]

Nice hope I don't have a leak there. Or I'll have to find out who put it in backwards and smack him around! lol.

 

[BuckthornBonnie]

I can't believe it ran. There's no practical way to seal that bearing up. Who knows what else is wrong...

I'd split it and start fresh. They're good saws (I have 3... all complete rebuilds).

 

[421SD]

Didn't know the bearing would go in backwards. Wonder if they put a seal on the other side? Or if the seal would even work because it would be backwards as well, that is if they put a seal in it.

 

[BuckthornBonnie]

The OD is the same either way. I'm sure the inner race is, too... so the crank must have gone in ok.

Where abouts are you located?

 

[421SD]

It ran great. Fired on 3rd or 4th pull, first pull when warmed up. If it wasn't for the idling down when on it's side or bar down warm I wouldn't have tore it down.

 

[421SD]

Upstate NY

 

[BuckthornBonnie]

Good thing ya did...

 

[BuckthornBonnie]

K. I'm in Penn Yan if ya need anything.

 

[421SD]

My buddy ran the hell out of it till the clutch blew up in it. Had 36" bar on it.

 

[421SD]

Thanks again for all the advice/help. I appreciate it! Got to put a bunch more parts on the list. It's getting longer by the day.

 

[BuckthornBonnie]

No prob, man. Nice buck btw.

 

[BuckthornBonnie]

Thinking about this today. I personally have never seen that so I was wondering if the greater AS community ever has... a quick search came up with 0 hits.

Honestly I get everything oriented correctly when doing bearings and I still talk myself through it.

I just can't believe that ran.