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Discuss '81 380 SL- double timing chain in the alt.auto.mercedes forum at Car Dealer Forums; I just got it and it runs great and sounds fine at 115k miles, but ...
  1. #1
    Chip Wood
    Guest

    Default '81 380 SL- double timing chain

    I just got it and it runs great and sounds fine at 115k miles, but no
    service records. My mechanic says I have a single timing chain, but he
    doesn't see any reason to check it from the performance and sound
    aspects. It will take $400 to just remove the cover to check it out.
    Am I being paranoid? Should I pay $$$$$$ to swap in the double timing
    chain? I heard it was a 40 hr job. Heard it used to be a free swap at
    the MB dealers, but no longer. What's the truth and what's hyperbole?

    Chip

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  2. #2
    Alan M
    Guest

    Default Re: '81 380 SL- double timing chain

    This is subjective and from a non mechanical point of view but.......

    Would it not be worth paying the $400 for peace of mind? Especially if it's
    a car you intend to keep for any extended period of time?

    Alan M.



  3. #3
    Tiger
    Guest

    Default Re: '81 380 SL- double timing chain

    At the least, I would just pay to have that chain replaced with another
    single chain and do it every 75,000 miles... if you ever drive that long...
    otherwise, it is pretty much one time job.



  4. #4
    Rockman59
    Guest

    Default Re: '81 380 SL- double timing chain

    The "rule of thumb" on MB timing chains is to make the change every 100K
    miles and/or 10 years. Generally speaking the chains don't break but the
    associated pieces with the chain is where the problems occur. Some of these
    parts are made of plastic and the mileage and heat tend to make them very
    brittle. They break, fall into the chain teeth, and that's when the major
    problems begin. And in your case MB had so many problems with the single
    chains on the 380 models that they went back to a double chain. As I recall
    the last time I had a chain and related pieces replaced the cost was around
    $1200. Have it done at an independant MB shop. They do these all the time
    and are much cheaper than going to the dealer. That goes for all work on
    older MBs. The dealers don't even like to work on the older models. New
    cars are pretty much "plug and play", in one door, out the other, here's the
    repair bill. They don't and in many cases can't fix them like they used to.
    Again, find a good independant shop and get to be best friends with them.
    "Tiger" <tiger0002@hotmail.com> wrote in message
    news:9puii.11$zG1.5@newsfe12.lga...
    > At the least, I would just pay to have that chain replaced with another
    > single chain and do it every 75,000 miles... if you ever drive that
    > long... otherwise, it is pretty much one time job.
    >




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