Liner O-ring failure

[Truckdriven]

(06-20-2023 )Rawze Wrote:  #2 and #4 pistons are showing signs of leaking injector. Make sure, at a minimum, that you put new injectors in those 2 holes.

Also there is a lot of impingement on the pistons as a whole. -= I would blame the bad injection timing on this.. likely from back when it had the bad de-mandate in it.

What are the signs of leaking injector on the piston? Just trying to learn for myself...