Major Piston Damage!

wow, talk about FUBAR'ed! the mysterious disappearing piston ring.

That ring is what has me baffled. Possibly hot combustion gases ate it up when combined with oil? Maybe an acid was formed?

Now you know what was causing the knock. Amazing what kind of damage they will run with.

Yep, that part of the mystery was solved. It really sounded more like a bad rocker, pushrod or lifter. It also explains the oil consumption (a qt. every 200 miles) and the blow by.

It really was amazing that it ran as well as it did. That sucker really did get up and go when merging into traffic. One more month or so of driving it like that and I would have ruined the block and crank though.... :read2: