A question on Les Andrews's ring specs

[Chris Haynes]

That seems like a lot of carbon for only 1500 miles.

[Marco Tahtaras]

Originally Posted by Chris Haynes

That seems like a lot of carbon for only 1500 miles.

I agree! I was hoping someone like Kurt would address that as I certainly don't have the experience to even speculate with any reliability.

[700rpm]

Originally Posted by Marco Tahtaras

I agree! I was hoping someone like Kurt would address that as I certainly don't have the experience to even speculate with any reliability.

Me too.

[Tom Wesenberg]

Originally Posted by Chris Haynes

That seems like a lot of carbon for only 1500 miles.

I agree, and I'm still wondering why no crosshatching is showing. I would remove the pistons and remove the rings from the pistons, then check the clearances. I'd then give the cylinders a light hone and put it together again with correct clearance on the rings and pistons.

When I worked at the auto shop I hot tanked an Olds engine for a customer. He brought the pistons and heads in to show me how he had poished them to look like a mirror. He figured it would not have carbon stick to it this way. He didn't properly clean the cylinders after honing them, and wore out a new set of rings in one week. So he tore it back apart and showed me the pistons and rings. The pistons had just as much carbon as any other non polished engine. The rings were sent in for an analysis, and it was determined he left grit in the cylinders after honing.