piston skirts cracked why

[mmax99]

I purchased a 2000 MMax recently with a grenaded engine. No problem I'll rebiuld sounds simple. Well besides shipping issues I have found on closer inspection that the two cylinders that did not melt down had issues. I found both pistons skirts cracked on the intake side of the piston. I discovered when that a peveous owner had some Mods
cylinder mods done
1 layer of gasket between cylinders and block
2 layers of gasket between cyloinder and head
factory pistons
bender pipes
v-force reeds
no spacers
dial jet (by holtzman)


Will installing OEM gaskets hurt and what may have caused the problem

 

[ramblnman]

is the bottom of the piston skirt shiny? worn out rings. if not it swollowed a lot of snow ! cold on hot will do that.

 

[mmax99]

skirt is not shiny and the rings look good but the head mod that a previous owner did has the skirt on the cylinder Modifide on the intake sdie could that be an issue. cold fuel hitting the piston on intake splashing against piston. I don't know I am just quessing there is much more knowledge out there than what I possess any help appreciated

 

[xt700]

check piston to cylinder clearance too much slop will cause the piston to rock back and forth and the skirts to break.

Pat

 

[Danger Dog]

Also detonation may cause it.

 

[mmax99]

detonation is what running crap fuel in a motor biult for high octane or cold run and how do I prevent it from happening again