Broken Piston?

[AWS96]

My cousin has a 02' with 75K and broke a piston! Ford said that he had to much boost at 24 psi. They also said that 18 psi was max for a 7.3. Stock it will push 19 psi all day! The truck only has a after market muffler and a edge evo set on the middle setting. This truck has always been faster/hotter than most others sense it was brand new. So i am wondering if the injectors or turbo could be not stock from the factory? Or for that matter anything else that could cause high boost?

Any thoughts?

[Dietoremain]

First of all dont listen to ford for crap, these things will boost up to almost 40 before you even have to worry about a headgasket.(with forged rods) Well i mean the rods in the 02 are PMR's but honestly it sounds like a freak accident to me, the edge definitely isnt exactllyy a good tuner to be running though..

thats way low in the miles too, crap happens though..

[ryandamo]

did he blow a piston or a connecting rod?

[Dietoremain]

Originally Posted by ryandamo

did he blow a piston or a connecting rod?

if it was a rod, then we can say PMR failure... :-\

[AWS96]

It was a piston skirt!

[AWS96]

anyone else have a idea or thought?

[AWS96]

No one has anything to add?

[Effreem]

The skirt?

Did the pin rip or the rod bash it, or a ring get messed up in there? The skirt doesn't go for no reason, something else would have to rip it apart. To just throw a new piston in there is IMO a good chance of having it happen again.

[6.0 stroke]

lot of high rpm blast would cause a skirt to rip like that... but def not normal for that kind of miles

[AWS96]

It does not make sense to me ether. they took it apart and the only thing wrong was one piston skirt. Ford claims to much boost will do it. I still think it mite have something to do with the injecters or pump.