No pressure or vacuum

[k nystrom]

I have an old 044 that puked a wrist pin clip and seized, and while I had it torn down, the seals looked a little hinky and the bearings felt just a wee bit rough so I decided to go for it and learn how to rebuild it.

I got the case apart, put the bearings in and got the shaft and case back together. I got the seals in correctly I thought, and new meteor piston and cylinder. All proud of myself Now I went to pressure test it and got nothing. NO pressure whatsoever this morning. (like pumping as hard as i can and the needle on the gauge didn't move).

I dunked it in water and it was very obvious the clutch side seal was leaking. So I'm on my third seal... and still no damn pressure.
Does this look right? actually now that I look at the pic, one side looks too far down... damn it. crank still turns fine.

 

[rupedoggy]

Doesn't the 044 use a sleeve to seal the clutch side? Put the sleeve in and try again. Mike

 

[Andyshine77]

That seal looks like it's not riding on the crank at all, so it has zero seal. Many seals need to be set to a specific depth. Others that have more experience with this saw will be along eventually.

 

[Andyshine77]

Doesn't the 044 use a sleeve to seal the clutch side? Put the sleeve in and try again. Mike

That would sure make a lot of sense.

 

[Ozhoo]

Doesn't the 044 use a sleeve to seal the clutch side? Put the sleeve in and try again. Mike

Zackly... she's wide open without it. Even with it they've been know to leak unless you put so grease inside the sleeve.

 

[k nystrom]

OK, now that I'm studying these pics... that rubber part is supposed to go in between the crank and the bearing race, correct? So obviously it's not. I just put the worm gear with that sleeve down in there, and it sits in the rubber part of the seal, but shouldn't it hold pressure without the clutch holding everything down?

 

[Ozhoo]

11286476600 is what you're missing. The fat part rides on the seal.

 

[L34]

I believe the clutch has to be on and tight to make it seal.

 

[k nystrom]

I have the oil pump and worm gear back in. OK, I'm putting the clutch back on now and we'll see what happens... OK! clutch on and much better. Still a very slight pressure leak, even less on the vacuum, but I think I have one more time getting that seal right, and then he'll go back together.... Thank you all!

 

[Ozhoo]

smear grease on the inside of that spacer where the little step is

 

[k nystrom]

OK, so Thanksgiving got in my way... but an update on this thing. I DID IT!!! Damn thing runs and everything! I redid the clutch side seal one last time, and then put him all back together carefully, and damn near peed myself when he fired up. Thanks once again for all your help, as this would not have been accomplished without all your helpful posts