The Official Kilt Crankshaft Thread

[huskihl]

Haven't had a good kilt crankshaft in a while. Think this one qualifies ;-)View attachment 157761View attachment 157762
Oil line is playing peek-a-boo. Lol. I assume there was a casting flaw in the piston. Some how the AM cylinder survived. Kinda ...View attachment 157764 Owner of the tree service was present when I tore it down. Luckily he had a complete 066 case with an OEM top end that has a scored piston. Looks like the OEM cylinder will clean up from the donor

Wrist pin bearing might've chookashit. The middle section of the broken rod is blue on top

 

[Marshy]

Will this buff out?

 

[redlight066]

Wrist pin bearing might've chookashit. The middle section of the broken rod is blue on top

Still there intact

 

[redline4]

View attachment 157767
Still there intact

Thats what I call piston cookies.
Ive made a batch or 2 in various engines over the years.

 

[huskihl]

The connecting rod...upper right




Maybe it started to seize and was rocking the piston in the bore? Something got pretty hot

 

[huskihl]

I guess that could just be carbon. I thought it looked blue the first time

 

[RI Chevy]

That'll fire up. Use s little JB Weld.
It'll be good enough for who it's for.

 

[redlight066]

She's blue alright. Someone else has been in this saw. No signs of excessive heat this go round. Spark plug and muffler looked normal. Good mix in the tank. Maybe from the first meltdown? It did have a cheap China top end kit on it. No chatter like wear in the bore. Dunno

 

[Fruecrue]

Dis ones kilt.

 

[redlight066]

That'll fire up. Use s little JB Weld.
It'll be good enough for who it's for.

Lol!! The hot glue gun ain't gonna cut it either

 

[redlight066]

Dis ones kilt.

You sure there's a bearing left in there. Lol. She's awful sloppy

 

[tree monkey]

that's what he said

 

[Duane(Pa)]

Blue, blew, blowed, kilt

 

[RedGas]

Blue, blew, blowed, kilt

 

[redlight066]

that's what he said

Lol! Morning sir

 

[Stihl working Hard]

View attachment 157767
Still there intact

Wow that really went bang didn’t it

 

[hseII]

A nice Built saw from various donors.

Pro Tip,
It’s imperative that the crank taper perfectly match the flywheel taper. I truly didn’t realize how important.

No One’s fault & lesson learned, but the next time I think the timing is changing on a saw while it is running, I may or may not shut it down immediately.


Sent from my iPhone using Jon1212 Pro

 

[Fruecrue]

A nice Built saw from various donors.

Pro Tip,
It’s imperative that the crank taper perfectly match the flywheel taper. I truly didn’t realize how important.

No One’s fault & lesson learned, but the next time I think the timing is changing on a saw while it is running, I may or may not shut it down immediately.


Sent from my iPhone using Jon1212 Pro

Why did taper not match?
All appears to be 1128.

And..... should have used red armor.

 

[hseII]

Dis ones kilt.

Oh Nooos.


Sent from my iPhone using Jon1212 Pro

 

[RI Chevy]

[emoji15] Ut oh.