what caused this? injector? timing? what?

[riceatingrabbit]

last time i had the head off my rabbit, two pistons were pitted like this...

I didn't have the time or money to replace them, so i just put it together "as is"...

I'm wondering if you guys know what typically causes pitting like this? I'm going to be tearing down my engine again here in a few weeks, and Im trying to gauge the importance of replacing the pistons...





what do you guys think?

[truckinwagen]

bad nozzle spray.

a worn or clogged nozzle will not spray properly, causing heavy carbon deposits and piston erosion.

-Owen

[riceatingrabbit]

that kinda what i was leaning towards..

so, given that, if i replaced the nozzles, am I ok to run those pistons? ive scene people run pistons with huge valve divots in them and be ok...

I am planning on turbocharging this motor after this next tear down...

[truckinwagen]

you should be fine as long as the erosion does not go to the rings