044 clutch side seal

[ents]

Trying to replace clutch side seal on 044. Buggered up 2 seals so far. I don't see how that seal will go over what it's suppose to go over. Is this bearing sitting too high. I can see the seal going over the soft shoulder but it's buried in the bearing. Thoughts??



Thanks and have a great day.

Fred

 

[Totembear]

Did you put the bearing in yourself? Did you put it in with the oil pump installed to use as a bearing stop?

 

[mikerudder]

Did you replace the bearings as well?

when replacing the bearing on that side, use the oil pump as a stop, which will set the bearing in place.

Looks like the bearing needs to be pressed in more to me?

 

[mikerudder]

Did you put the bearing in yourself? Did you put it in with the oil pump installed to use as a bearing stop?

Well great minds think alike hahah

 

[ents]

This saw is an auction find from yrs. ago. I never ran it and this is the first time tearing into it. Failed compression big time. This side seal was the tell, leaked like it wasn't there.

I'm assuming this means I have to break down this saw and replace the bearings??? Nervous on that since never did that. I don't think I can just seat that bearing farther into the crank case??

Anybody have a picture of what a good clutch side bearing/seal should look like?

Hope all is well,


Fred

 

[Mad Professor]

No 044 guru here. I've got 044 and 046 carcasses to play with though so been reading the threads.

There was a thread a while back concerning positioning the bearing. Method was to use a junk oil pump and a drift to seat bearing, then check crank center.

 

[Totembear]

When doung a p&v test, you've got to put in the oul pump sleeve and tighten down with the clutch. I bet thats you're problem.

 

[Totembear]

The oul pump sleeve goes over the crankshaft and sits in the seal.

 

[Totembear]

Oil..thats better, dam keyboard is too small for my fingers

 

[mikerudder]

The oul pump sleeve goes over the crankshaft and sits in the seal.

I was just thinking the same thing. Beat me to it.

 

[Mad Professor]

Here is a question.

If you are replacing the PTO/clutch seal can you do it without the sleeve installed, then sneak the sleeve in without messing up the seal?

Again, I've not wrenched these yet.

 

[arto_wa]

Looks pretty dirty in there!
If it was my saw, I would take it apart and do a proper reassembly after cleaning & inspecting everything, but that's just me.

Easy to find YouTube instructions if you are not familiar how to do it.

 

[mikerudder]

Here is a question.

If you are replacing the PTO/clutch seal can you do it without the sleeve installed, then sneak the sleeve in without messing up the seal?

Again, I've not wrenched these yet.

I have only built a handful of these, but that's exactly how I have done it. Install the sleeve after.

 

[scallywag]

Any help to you?

 

[mikerudder]

Any help to you?
View attachment 792157

Perfect picture.
Always forget about that o ring!

 

[scallywag]

Always forget about that o ring!

As far as I know the O ring is NLA from Stihl, most saw builders use a sealer such as...https://threebond.com/products/sealants/ etc or grease to replace it.

 

[SteveSr]

Here is a question.

If you are replacing the PTO/clutch seal can you do it without the sleeve installed, then sneak the sleeve in without messing up the seal?

Again, I've not wrenched these yet.

Yes, and add some grease to the inside of the sleeve to stop the built-in leak!

 

[SteveSr]

Perfect picture.
Always forget about that o ring!

So did some versions have the o-ring and others not? I am thinking that it was eliminated at some point. My later 044 didn't have the o-ring (or I didn't notice that it was missing when I rebuilt the saw.

 

[scallywag]

I am thinking that it was eliminated at some point.

Correct.