Breathing new life into the 318 in the Scamp!

No lifter bore broaching was done, even though I thought about it. I elected not to do it because I checked the cam and lifter set, dry, as per their suggestion and didn't see any problems. Everything was moving, cold, so I didn't think it needed it.

The thing is, with a crater like this, if it was going to cause a problem cold, it would have shown right away when I checked the lifters and cam, cold. It would make more sense, understanding metalurgy, that it would show up when it was hot, from a riser peaking, as a place for heat to focus, closer to oxygen. Same reason why I elected to smooth the edge off a bit of the heart combustion chambers. Turns into a glow plug.

I'm doubtful that they will do anything, but I think it's worth calling them.

I'd even send them the old cam, just to show them what the hell came out of it and how nice the new lifters and lobes look that matched the lifter bores on the block, on the flattened lobes of the old cam. They are perfect. If broaching was needed, it would have shown here, too.

There are just too many arrows pointing to the lifter failing. Another thing that occurred to me, is that if this lifter metal was contaminated enough to have a crater showing, what's inside of it that isn't showing? If it went through the gas chamber and didn't cool like the rest, from the pockets inside it, that could have potentially created another strength issue overall, on this one.