Well, if the engine "just stopped," it may be because the guide broke, jammed under the chain, caused the chain to jump on the sprocket thus altering the valve timing, causing the exhaust valves to hit the pistons, bending the valve stems, causing them not to close, causing a loss of compression, causing the engine to "just stop."

So you need to think about at least one rebuilt head.

In addition, you would want to do tensioner, chain, rails. cam oiler pieces, and injector seals. You should look closely at all of the sprockets to see if they are razor sharp or "egged." If so, they need to be replaced. Also inspect the cams and rockers for wear.

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe