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WTF.... How bad is this ?

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    WTF.... How bad is this ?

    Help.

    While driving my 1991 318IC, there was a sudden, total loss of power.
    Only sound I heard was a "whooosshh"....from the engine compartment.
    Safely coasted to a stop. Checked the engine bay. No water, oil or
    metal/rubber parts missing or laying around. Turned key. It cranked
    over, but no start.. Had towed to friendly neighbor (retired mech-but
    is not too familiar with ECU era stuff. He took a compression test
    and reported there was 'no compression in any of the 4 cylinders'...
    None !!!

    What happened to my bimmer ? Any clues ? :shock:

    many tks in advance...
    drcrougeux

    #2
    If it was a 325 I'd say it was the rubber timing belt but yours should be made of chain. Do the valves move? I find it hard to believe there is zero pressure even with a blown head gasket.

    Steve
    Tomahawk -

    When you care enough to send the very best.

    Comment


      #3
      THE SAGA CONTINUES....WTF

      UPDATE.

      The crankshaft is turning.
      But there is no connection between the crankshaft & the engine/belting
      system.

      Again, no compression in any of the 4 cylinders. !!

      Many mech/tech are astonished by this. So am I.

      But the problem remains.... :evil:

      Will someone, please jump in here, and provide some first aid...

      This can not be such a rare occurrence
      drcrougeux

      Comment


        #4
        are your cams turning? if they aren't then you have a broken timing chain.

        Comment


          #5
          UP-DATE.

          ALLO.

          The cams are turning.
          t/chain is tight and seems to be all there. no metal parts laying
          around.
          How to loosen the t/chain ? what is the techquie to remove the t/chain ?
          The Bentley book doesn't seem to cover my model. 91 318ic.

          Still searching for clues for the problem. Then, i'll need some answers !!!

          many, many tks so far.....
          drcrougeux

          Comment


            #6
            buy a manual for an E36 318i.. basically the same motor, just different body. that should help you :)
            Build thread

            Bimmerlabs

            Comment


              #7
              Re: THE SAGA CONTINUES....WTF

              Originally posted by drcrougeux
              UPDATE.

              The crankshaft is turning.
              But there is no connection between the crankshaft & the engine/belting
              system.
              Broken Crank?

              Comment


                #8
                Pull the plugs, shine a flashlight in there and make sure the pistons are moving. If not, maybe a broken crank? Seems extremely rare though.

                "See, we're adding a little something to this month's sales contest. As you all know, first prize is a Cadillac Eldorado. Anyone wanna see second prize? Second prize is a set of steak knives. Third prize is you're fired."

                Comment


                  #9
                  UP-DATE !

                  ALLO.

                  I don't know what happened, but here's the results...

                  ruined c/shaft sprocket
                  ruined t/chain
                  ruined chain guides (2)

                  Plus other parts/supplies as needed to restore/replace to driveable
                  condition. Maybe $500/700 .

                  Seems as if it could have been much worse....

                  For now, I have a diagnosis. next, the surgery, then recovery..

                  Many tks for the info...
                  drcrougeux

                  Comment


                    #10
                    How is it possible it didn't eat some valves? How can the cams be turning, as you said?

                    Comment


                      #11
                      SAGA CONTINUES....

                      ALLO, AGAIN.

                      YES. It did eat some valves.... 16 of 'em.
                      BTW. 8 of the valves cost 'round $ 48. each ...

                      This major detour is a expensive turn of events.

                      The better news is, that when finished, this blue beauty ought to
                      purr & humm. For way, many miles .

                      many 10-q's.

                      Later.
                      drcrougeux

                      Comment


                        #12
                        Originally posted by nando
                        buy a manual for an E36 318i.. basically the same motor, just different body. that should help you :)
                        Close, but not quite. There is a lot different between the two M42s. However, I would still recommend the E36 Bentley book.
                        The BMW 318 is back. With a vengeance.

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