After 5k I doubt you will see any metalic/silver from the pistons. As for checking to see if its really eagle/ross dont you think you should have comfirmed this before the sale? Recites?

Jordan

 

Haha yeah I knew that would be asked after I submitted the thread, I have 30 days with it before It's all said and done, got it from Remy if you know him. He said teamzrp built it in NY but didnt have receipts so I checked his background and history and figure it was probably the truth since I found no evidence of him doing it himself, and he's a great guy to talk to. But it is bored and o'ringed so I just assume it was built by a shop too. I am going to take it to JNZ I think just to make sure I shouldnt get it honed or something. But I dont understand why the honing is like gone? And the slight groves on the one cyl wall?

 

Oh and he said the cold compression was 170-173-173-170 which is good, but should it be that when it's cold? I'm thinking maybe the wall clearances are too tight and the rings wiped the hone clear, as well as the grooving? I'm just trying to figure out if this is normal wear and tear already.

 

I can get some pics tomorrow if needed.

 

Do you mean there is no cross hatch in the cylinders? Are they shinny smooth? Any grooves you can feel with a fingernail? My 2.3l cold compression #s are similar. Hot compression is 195psi across.

 

Weel my dad says no but with a light I can see it, on all but #4 which has the up and down grooves and yes you can just feel the slight defection on the wall. The cross hatch doesnt look too fresh though, it kinda seems like it is flush but definitely can see the marks. They are pretty shiny but the pistons are totally black, like the inside of an old tailpipe black.

 

My 2.3 was built a little more than 1k miles ago, and the top of my wiseco pistons are pretty black as well. What is it? I'm in the process of rebuilding it once again (hydrolocked it) and am prob gonna clean that black stuff off

 

It is just normal. You can look at almost any engine that runs pump and see this.