Cracked or burnt piston?

[Shafer171]

I have a couple pics I took Sunday

 

[Shafer171]

Will have more and better ones this weekend

 

[powerstroked08]

I saw a 6.4 that broke a ring and pressurized the crank case so much it pushed the turbo seal on the low pressure.

 

[Geralddunbar995]

I'm just wondering if the K16 was leaking into the crankcase and then it melted a hole in a piston and created the pan removal scenario. No idea, honestly. Just thinking out of the box.

 

[Shafer171]

That makes sense to me

 

[btoler4th]

How many miles on your rig? Trying to get an idea on the k16 life span. Above post about it possibly leaking has my nerves slightly shot. ( just did a full build, and reused my pump).

 

[Shafer171]

175k been tuned since warranty went off

 

[Shafer171]

#2and8 Pistons cracked

 

[Shafer171]

Better pic of 8

 

[Shafer171]

I've never really messed with the fuel system on these trucks where should I start digging in to it?

 

[6.4f350]

Take out the 3 bolts holding the pump down and it lifts right out

 

[Shafer171]

Sorry I meant the pump itself what should I be looking for, should I pull the covers and start looking at the internals?

 

[suprdzlduty]

You wanna look for metal in the system which will be difficult now that the injector lines are off...you could look in the supply ports on top of the pump with a flashlight and if you see a lot of "glitter" that's metal...which means the pump is goin bad

 

[Shafer171]

Didn't see any but once pump was out I spun it and can feel a drag in it.

 

[Shafer171]

Any tips on the new build?

 

[Shafer171]

Got it pulled today and got the pan off f it, it was a pia getting that mangled pan out of there! Lots of metal shavings floating around in the pan. The dent in the bottom f the pan is from me jacking it back up with a floor jack to get it off the cross member.