Originally Posted by dr_c
So I've gotten word back from the machine shop - the head
checks out; no cracks observed even under heated magnafluxing. They do recommend a full rebuild and grind, so that's what we're doing. Of course, now I'm gone for a week, but hopefully stuff starts going back together, soon. . .
I've left the machine shop a thousand times... But I have never heard them say "It doesn't REALLY
need a rebuild, we'll just clean it up" So... Sounds about right!
Anyway... Glad there wasn't a problem... Make sure they surface the deck
so we can eliminate that...
Get yourself a straight edge longer than the length of the block and lay the edge down on it in many orientations... You can use a feeler gauge or strong flashlight to look for low spots or "valleys" on the block mating surface... Do both long sides, corner to corner across, and side to side on each side of every piston....
Let's make sure those surfaces are perfectly flat before we slap that head back on!
Enjoy your week away from your moonlight marine mechanic