I am seeking advise from the forum with a gouged cylinder head.
Finally brought my disassembled GM90 6/1 DI out of storage.
The engine had approximately 2 hours in short runs and was then taken apart to facilitate a move.
Last night I noticed a gouge on the cylinder head and 1 valve which probably occurred during assembly in India.
There are pictures at
www.listerenginegallery.com Spark Chaser.
The gouge starts at the edge of the combustion chamber and extends past the cylinder liner seal area. There is carbon track evidence of seepage along the gouge. I am fairly certain that extended running under load will worsen the leak and possibly erode the head.
Several thoughts come to mind:
Procure new DI type head.
Mill the head flat, verify the compression ratio, and shim between the cylinder and block if needed.
Attempt to fill the gouge with soft copper.
Attempt to fill with high temp metalized epoxy.
Any thoughts?