Series 60 Engine Problem, Major, I think

[Richard and Rhonda]

So we get done to the conundrum. I did not see an obvious problem when I finally got the head off.

I did find a significant amount of coolant in Cyl 5, and none in the others. I do see a slight shiny place at the block web between 5 and 6. I do not see any cracks in the liner. I did not see any apparent damage to the injector tube.

The liner is supposed to be somewhere between .002 and .005 proud of the block to seal against the gasket and head. I only had a crude dial indicator jig yesterday but the liner in question is flush to .001 proud. The other liners appear to be about .002 proud.

I took the head to an authorized DD shop in Charleston for them to pressure test. One of the mechanics there looked at the head and the head gasket and didn't see any visible signs of damage.

This was kind of my worst scenario. Not finding an obvious breach.

It'll be after T'day before the shop can get to it.

The cyl wall you see is where the coolant etched the wall.