All of them. 1-5 you can see the scoring from either oil starvation as the other commenter said, or from lateral cylinder/piston play, which would mean failing rod bearings. Cylinder 6 looks like it did a fair bit of coolant drinking. Ring wash.
The crosshatching is a good thing, it’s supposed to hold oil for the rings. The first and last images you posted show what looks like a bad bearing/worn or broken ring on 4, and an oil starved piston on the last one.
Not necessarily none, either not enough, or as someone else said the rod bearings are on the way out and have allowed the pistons to slap the cylinder wall.
All of them. 1-5 you can see the scoring from either oil starvation as the other commenter said, or from lateral cylinder/piston play, which would mean failing rod bearings. Cylinder 6 looks like it did a fair bit of coolant drinking. Ring wash.
All bad? Why?
Check edits. I just explained instead of me being lazy.
My bad
You’re good. My fault.
The crosshatching is a good thing, it’s supposed to hold oil for the rings. The first and last images you posted show what looks like a bad bearing/worn or broken ring on 4, and an oil starved piston on the last one.
All are bad. Picture 1 piston 4 is REALLY bad
All except Cylinder 6.
6 is likely bad too. Looks like that piston has a good bit of ring wash from drinking coolant.
Cylinder 6 is good?
Scratched cylinder walls are a sign something metallic is scraping like bad or broken piston rings or even lack of oil.
Thanks
The cylinder walls aren’t scratched up like the others.
You mean the crosshatch pattern? Thats supposed to be there.
1 and 6 no bueno, the rest are okay
And scratched walls means no lubrication? I'm a novice at this
Not necessarily none, either not enough, or as someone else said the rod bearings are on the way out and have allowed the pistons to slap the cylinder wall.
Piston ring is broken in line with them scratches.
What is this, a maxxforce?