The Official Kilt Crankshaft Thread

[Mastermind]

Post your dead cranks here fellers. No.......not those cranks. The blue pills will bring those back to life. I'm talking about those crankshafts outta saws that gave up the ghost.

Here's one from a MS261C I pulled apart. Stock saw except for a muffler mod. It was not a beat to death saw......just a average working saw. Wrist pin, and main bearings are just fine after a trip thru the ultrasonic. The piston lost the fight with the debris, but the jug is ok.

So.......why did this crank die an early death?


The crank stub has no measurable wear.

 

[traffic903]

So.......why did this crank die an early death?

Too many smurfs in the fuel, going by how blue it is!

 

[Glock37]

Stihl MS 880 crankshaft it ran

Had a helluva time get clutch off to rebuild

We dont know what caused it to break

 

[Mastermind]

Nice one Mike.

 

[Glock37]

Nice one Mike.

Just think of the torque it tookto break it

 

[Mastermind]

Just think of the torque it tookto break it

Overly tight chain probably killed it.

 

[jakethesnake]

Post your dead cranks here fellers. No.......not those cranks. The blue pills will bring those back to life. I'm talking about those crankshafts outta saws that gave up the ghost.

Here's one from a MS261C I pulled apart. Stock saw except for a muffler mod. It was not a beat to death saw......just a average working saw. Wrist pin, and main bearings are just fine after a trip thru the ultrasonic. The piston lost the fight with the debris, but the jug is ok.

So.......why did this crank die an early death?

View attachment 114910 View attachment 114911 View attachment 114912
The crank stub has no measurable wear.

View attachment 114913

Too dry boss. Lucas oil

 

[Mastermind]

Too dry boss. Lucas oil

It was running on orange bottle Stihl oil at 50:1

 

[jakethesnake]

It was running on orange bottle Stihl oil at 50:1

What’s yer expert analysis? Too dry?

 

[Chainsaw Jim]

All the crud that looks baked on gives me the idea that the air filter might have been faulty or missing.

 

[Quzick]

Pictures from my personal collection, from Estonia.
*crank from a Shindaiwa 490, and yes it did run despite of broken crankshaft.

*cranks from a newer Stihls 261, 362

 

[Mastermind]

What’s yer expert analysis? Too dry?

I don't really know. Could just have been a faulty bearing. It happens. The build date on the saw is January 2017.

All the crud that looks baked on gives me the idea that the air filter might have been faulty or missing.

These 261 have about the best filtration I've seen. And.....the filter was good. Nice soft rubber seal.

 

[stihl_head1982]

Here's my kilt...

 

[Mastermind]

Pictures from my personal collection, from Estonia.
*crank from a Shindaiwa 490, and yes it did run despite of broken crankshaft.
View attachment 114941 View attachment 114942
*cranks from a newer Stihls 261, 362
View attachment 114944 View attachment 114951

Thanks for sharing. That Shinny looks gnarly.

 

[Quzick]

and a Husqvarna 545 from 2014

 

[Mastermind]

View attachment 114953

Here's my kilt...

There's always a wise guy in the crowd.

 

[Mastermind]

and a Husqvarna 545 from 2014

Nice One !!!!!

 

[leadfarmer]

Here's a interesting one. I bought the saw this way.

Sent from my SM-G900V using Tapatalk

 

[Glock37]

View attachment 114953

Here's my kilt...

Please dont lift it up !

 

[Marshy]

There's always a wise guy in the crowd.

Proof read da title.