New engine has loss of compression

inertia said

I have 2 thoughts,,

If it were my car, I would prob stick it back together as is,, with the gaps oriented correctly, expecting I MIGHT have to take it apart again, - but then again,, I wouldn't have pulled the pistons after the solvent test.. lol

If the cyls aren't honed correctly,, or the wrong grit is used,, you could have as much trouble with new rings as the old..

Sooo,, as Sireland suggests,, for peace of mind,, HAVE it de-glazed and new rings would be my choice for you...

or,.. toss a coin...

pheww,, I hope that helps.. lol

Click to expand...

Well the reason that I pulled the entire thing apart was because a few bearings didn't look as good as they should have looked...It looked like something ran through some of them, and there were some odd strips of copper in some places, the crank needs a polish too, didnt really damage that though. But I wanted to clean everything and figure out what caused that metal or whatever to go through. I talked to my engine guy and he said that it could have come from a few places, the cam (not flat but wore more than it should be), and the spacers under the springs. The spacers were just little shims of copper, and they weren't hardened like they should have been. Looking at the bottom of my oil pan confirms that there was alot of metal in the engine even after 4 oil changes, little slivers of non ferrous metal, some seems to be copper...I can take a picture to show how much metal there is. Well this stuff happens I guess.

So I want to clean EVERYTHING out, and figure out what caused the metal. Could the scratches in the bores be caused by the little pieces of metal in the oil?

And would a simple ball hone like Rusty suggested a while ago be all I need, and would they get rid of the scratches? Because I thought you hone the cylinder wall for the rings that you use?