[W126 Coupe] 1982 380SEC various issues

[Mister McGoo]

Tad;
 
Another opinion........
 
The early 380 engines supplied to N. America in the SE, SEL and SEC were all with single timing chains.  Many were converted under a warrantee or limited warrantee, but it was essentially a "secret" warrantee.  M-B replaced lots of complete engines that suffered premature chain failures.
 
But having one of these engines doesn't mean they are scrap.  To check, remove one valve cover.  If yours is a single chain, install a new one and note that it should be replaced again every 30,000 miles to increase your chances of getting lots of service.  Let's face it, the engine is now 25 years old so it couldn't have been all THAT bad.
 
To convert the engine now would likely be foolish.  It isn't just changing the chain.  You must change all the sprockets and the front cover.  Some parts can be had used from a later 380, but it is still a big expensive job.  And Dick is right, if you are planning to do that, you'd want to renew everything questionable.
 
Take a cover off and confirm what you have.  Likely for comfort, you should replace whichever chain and guides there anyway.  Then enjoy your 380SEC.   And forget about beating the greasers and their crappy racing-ricers off the line, cause they'll beat the 500 too.  
 
You're driving a 25 year old classic! -Bellamy
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