Check the ring pins on AM pistons!

[Nutball]

I saw a crack, and tried to force it, and sure enough it failed. Should be good to go now. I think there's still enough material behind the pin to hold it in.

 

[jacob j.]

What's that going into?

 

[Chainsaw Jim]

It can now work its way out and trash the saw.

 

[Nutball]

At the angle you see it from, it looks like the pin has nothing behind holding it in, but that's just a shadow. It actually has enough on the top side to hold it in

 

[huskyboy]

Do yourself a favor and throw that piston in the garbage or return it if you can.

 

[Backtroller]

Why Chance it?

 

[Redfin]

No.

 

[Nutball]

Y'all are no fun. I guess you don't want pics added to The Official Kilt Crankshaft Thread

 

[jakethesnake]

Run it for science

 

[Dub11]

Is this in a Stihl?

Run it!

 

[cus_deluxe]

What's that going into?

A future project saw. Lol

 

[Nutball]

There's some optimism

 

[cus_deluxe]

There's some optimism

. Fair enough. I was once told that im inherently negative person haha

 

[cus_deluxe]

Run it for science

This

 

[Nutball]

Maybe I should try for 20k rpm. It might not have a chance to come loose moving that fast.

 

[cus_deluxe]

Maybe I should try for 20k rpm. It might not have a chance to come loose moving that fast.

Thats the spirit!

 

[Deets066]

. Fair enough. I was once told that im inherently negative person haha

Might not be that your negative, more so that your positive... that it will fail.

 

[Wilhelm]

I wouldn't worry about the pin going further in, I'd worry about the case compression forces driving the pin out into the cylinder wall!

That thing is a paperweight at best.

 

[Bigmac]

Trash it, I have seen piston ring pins come out, ring catches port and say good bye to the cylinder! Seen a cr250 strip the plating off and a lucky cr500 that only had to be overbored 2 sizes up, And that was with a fordged piston!
Run it if you like carnage! What do you have to lose....piston, cylinder, crank and crankcase?

 

[MG porting]

Is this in a Stihl?

Run it!

Funny.