[TRADERMIKE 2012]

Originally Posted by Schurkey

I completely agree that the ridge is likely the cause of the broken rings.

To my way of thinking, a ridge-reamer is a tool for destroying cylinder walls. It's really easy to get too aggressive and carve too deeply. In my world, the pistons get knocked-out and thrown in the scrap-metal bin if they're damaged by the ridge. I let the boring bar deal with the ridge.

MOST OEM pistons are not worth saving--they're heavy, they're cast to be cheap, they're maybe not shaped properly for optimal compression and flame travel...modern pistons can be so much better than what came in the engine to begin with.

Mikes reply:

I never considered to ridge reem the top of the cyl. prior to removing the pistons. Is that Protocall when dismantling the motor? I always thought that came later, as a matter of fact one would Bore first and that should remove the ridge before Honing and lastly cross Hatching the cyl. , wall with x's.