044 blew its berries

[Chainsaw Jim]

I've seen cranks in worse shape...



..but never a bearing split down the middle like this.



I'm feeling lucky it's the bearing with a split outer race or I'd have one hell of a time getting the rest out.

There doesn't appear to be any damage to the case and the rest of the saw is in very good shape.
I'm no forensic saw grenade expert and have no back story... what do you think happened?

 

[Wood Chopper]

Wow [emoji44] berries everywhere.


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[tree monkey]

10mm?

 

[D B Cooper]

metal or plastic cage on the berries?

 

[jacob j.]

That's as spectacular a main bearing failure as I've ever seen...

 

[Chainsaw Jim]

10mm?

Yes. Red lever era.

metal or plastic cage on the berries?

Plastic. There's a chunk of it up top in the last pic.

 

[Terry Syd]

That thing must have vibrated for awhile before it let go. You have to wonder about some people continuing to run such a saw and not shutting it down immediately.

 

[Dub11]

That thing must have vibrated for awhile before it let go. You have to wonder about some people continuing to run such a saw and not shutting it down immediately.

Some people are dumb and I work with them.

 

[Stump Shot]

I would hazard to say that maybe the berries ended up on one side of the bearing and it chain reacted from there.

 

[tree monkey]

this was common for the 10mm saws, that's why they were up graded. the 12mm has a beefier crank.

 

[Frank bierce]

Looks like a failure over quite some time. Looks like the bearing race had different colored deposits along the busted area. Bad bearings that just took time to fail?
That is quite the failure!!!

 

[P.M.P.]

Looks like a failure over quite some time. Looks like the bearing race had different colored deposits along the busted area. Bad bearings that just took time to fail?
That is quite the failure!!!

Are you a forensic saw grenade expert...

 

[Terry Syd]

Some people are dumb and I work with them.

Probably thought the saw could use a tune-up on the 'anti-vibe' system...

 

[Chainsaw Jim]

From the looks of it the saw was in a cut when the crank broke in two. The flywheel did this while the bearing was getting worked on by the other half.

It's unfortunate because it's a nice slant fin cylinder otherwise. I do have a nice replacement on hand which I'll port at no additional cost to thank Clint for his patience on the p60 build.

 

[Dub11]

Probably thought the saw could use a tune-up on the 'anti-vibe' system...

Lol.

 

[birdmeter]

I've seen cranks in worse shape...

View attachment 146070

..but never a bearing split down the middle like this.

View attachment 146076 View attachment 146077 View attachment 146078

I'm feeling lucky it's the bearing with a split outer race or I'd have one hell of a time getting the rest out.

There doesn't appear to be any damage to the case and the rest of the saw is in very good shape.
I'm no forensic saw grenade expert and have no back story... what do you think happened?

SOB blew up.

 

[Stump Shot]

From the looks of it the saw was in a cut when the crank broke in two. The flywheel did this while the bearing was getting worked on by the other half. View attachment 146096 View attachment 146097

It's unfortunate because it's a nice slant fin cylinder otherwise. I do have a nice replacement on hand which I'll port at no additional cost to thank Clint for his patience on the p60 build.

I bet it had an HD2 air filter...

 

[Bigmac]

That thing must have vibrated for awhile before it let go. You have to wonder about some people continuing to run such a saw and not shutting it down immediately.

Ya I also bet it was making some abnormal sounds! I have a 461 that was making a nasty knocking rattling sound...big end bearing is getting loose...it has play but surprisingly not that mush compared to the noises it was making! And most guys just want to “runner tell she blows”

 

[stihl livin]

From the looks of it the saw was in a cut when the crank broke in two. The flywheel did this while the bearing was getting worked on by the other half. View attachment 146096 View attachment 146097

It's unfortunate because it's a nice slant fin cylinder otherwise. I do have a nice replacement on hand which I'll port at no additional cost to thank Clint for his patience on the p60 build.

I’m not mechanic or porter but I believe this is where epoxy would save this cylinder or am I not seeing this correctly. I know I have heard of guys taking a little to much out when grinding and putting epoxy on the outside to give it some added strength. I have had saws with it and never had any problems

 

[RI Chevy]

I wonder what oil was used and what ratio.
LMAO
Was bearing OEM or AM?