are these piston still good?

[lauj2gdsm]

I started to pull my block apart because i found metal shavings in the pan and filter. I got the head of and notice that the piston looks like they have valve contact please take a look at the photos let me know if its normal and if the pistons are still usable.

 

[BogusSVO]

Common to see.

Vlaves touched the pistons at some point.

Smooth out the high spots.

Make sure the rings rotate freely in there ring lands.

 

[lauj2gdsm]

how would i do that? this is gonna be my first do it at home rebuild.

 

[BogusSVO]

Are you going to pull them from the block? Or leave them in?

 

[H@xtGSX]

Yup, those got hit... Like mentioned, smooth them down. If you found metal in the pan though, I am betting you are going to have to at least disconnect the rods from the crank to see if your bearings are ok. Is there any scoring on the cylinder walls?

 

[lauj2gdsm]

i drop everything out including piston, rods and crank. at first i thought it was my bearings and main bearings but once i got everything off all my bearings where ok. it did not score the cylinder walls or crank at all. just minor scratches on a couple cam lobes and one cam journal. so can this shaving in my pan and filter be from my pistons?

since i had everything off. i was planing to take the crank and block in to the machine shop. have it clean and get the crank inspected because i can run my nail through one lobe on the crank and feel a little lumpy. you guys think this is too much?? also one last thing if i was to purchase new bearing sets is it one size fit all?

 

[90 Talon AWD]

can you post pictures of the shavings?