Ms290--- cracked crank lobe... ever see one?

[BuckthornBonnie]

I've been into a fair amount of saws and this is a first---

This saw grenanded a piston. I bought it for $25 totally locked up. All OEM parts... decent piston wear so it may have been slapping and hung a ring. Cylinder was trashed as well... definitely not a slow death.

 

[BuckthornBonnie]

So... anyone got a decent oem 1127 crank around?
My dealer may have one in the junk pile, but who knows.
Amazing that it cracked there... good thing this is just a fun rebuild and not a buddy's saw.

Eta--- God I suck at taking pics.

 

[Czed]

That's some impressive damage never saw that happen usually toasted pistons on those bet it had a noticeable sound towards the end lol

 

[BuckthornBonnie]

Ha, yep. I wish I was there to watch it go.

 

[a. palmer jr.]

I think you can find a 290 engine on ebay for cheap if you don't mind aftermarket.

 

[bikemike]

Find all used free parts and use cracked crank and blow it up for a vid. Amsoil 100.1 mix no cooling cover no clutch and maybe knock a few fins off the flywheel and kill the saw wfo no load

 

[Poleman]

Never seen that on that series of saws...or anything like what the left lobe looks like.
Just seen a chunk come off on a 064 once...was pretty ugly!!

 

[BuckthornBonnie]

Find all used free parts and use cracked crank and blow it up for a vid. Amsoil 100.1 mix no cooling cover no clutch and maybe knock a few fins off the flywheel and kill the saw wfo no load

That'd be fun.

 

[BuckthornBonnie]

Never seen that on that series of saws...or anything like what the left lobe looks like.
Just seen a chunk come off on a 064 once...was pretty ugly!!

Yep. I've seen cracked shafts, broken ends, needle bearings shot, etc. This was a new one, though.