Quote:
Originally Posted by Varley
.....Normally a crack is announced relatively discretely (differential pressure across the jacket water cooling (a la Gotaverkens), gassing where gassing should not happen, water in the Cc oil, etc.....
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We had one, but definitely not discretely. On a 12RSAD76 Sulzer after a long passage and having been stopped for a while to pick up the pilot, on attempting to start, No.11 cylinder flame ring, which had apparently broken, fell on top of the piston on the down stroke and the jammed in the ports on the up stroke. Being a 12 cylinder there were lots of cylinders getting starting air and resulting force split the liner from top to bottom and very rapidly filled the cylinder with water and hydrauliced the unit - nearly blowing the head off.
Funny that immediately after this incident it was decided that flame rings weren't necessary any more.