Scratched cylinder bore

View attachment Scratched Piston.jpg

The scratch is the brown stain looking thing, about 3/16ths wide at the widest part.:violent1:

The engine is not in the car. I bought it from a FABO member earlier this year (he got it from a friend who never used it, who also got it from another guy but didn't know the history). I just got around to pulling it apart on the engine stand, so I could start the rebuild. I see that the head on this side had been previously removed (loose head bolts), so I guess that a previous owner pulled it to see why the compression was low on this side. The oil pan was filled with gunk (no metal pieces though) and the timing chain was as loose as a jump rope. This engine was put through its paces, but amazingly it had no ridges at the tops of the bores.