Bent Rod

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  • xxx-Lost-Soul-xxx
    E30 Mastermind
    • Apr 2008
    • 1953

    #1

    Bent Rod

    So I Got a Call today,That my old M60 Now has a bent rod.
    I Have a few ideas,but Does anyone know How this can happen?

  • JTapper
    E30 Modder
    • Sep 2009
    • 847

    #2
    Driving through a puddle with an eBay CAI.
    sigpic
    Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

    Comment

    • ttrousdell
      E30 Mastermind
      • Nov 2009
      • 1770

      #3
      Piston to valve contact or if there was something in the cylinder would be my guess

      The Build:
      http://www.r3vlimited.com/board/showthread.php?t=191125

      Comment

      • whodwho
        E30 Mastermind
        • Jun 2008
        • 1547

        #4
        Water or really bad detonation or too much HP 8^)
        My M20 Frankenbuild(s)
        4 Sale - Fully Built TurnKey Megasquirt Plug and Play EMS

        Comment

        • xxx-Lost-Soul-xxx
          E30 Mastermind
          • Apr 2008
          • 1953

          #5
          Originally posted by whodwho
          Water or really bad detonation or too much HP 8^)

          Arizona Dirt desert Stock, HP.

          Originally posted by JTapper
          Driving through a puddle with an eBay CAI.
          oem cat.

          Comment

          • ttrousdell
            E30 Mastermind
            • Nov 2009
            • 1770

            #6
            ^CAI is cold air intake. wasnt talking about the cat. he was suggesting the car went through a large puddle and sucked water into the intake and hydrolocked the engine.

            The Build:
            http://www.r3vlimited.com/board/showthread.php?t=191125

            Comment

            • xxx-Lost-Soul-xxx
              E30 Mastermind
              • Apr 2008
              • 1953

              #7
              Originally posted by ttrousdell
              ^CAI is cold air intake. wasnt talking about the cat. he was suggesting the car went through a large puddle and sucked water into the intake and hydrolocked the engine.
              Ah ok. I Never heard that term before. Car is all stock.

              Comment

              • JTapper
                E30 Modder
                • Sep 2009
                • 847

                #8
                Also, piston to valve contact will not bend a rod.

                Detonation (lean condition) or water.

                What's the backstory?
                sigpic
                Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

                Comment

                • Jean
                  Moderator
                  • Aug 2006
                  • 18228

                  #9
                  Story?
                  Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                  OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                  Comment

                  • JTapper
                    E30 Modder
                    • Sep 2009
                    • 847

                    #10
                    Reminds me of a funny story about a friend of mine, and the guy is a member here.

                    Drives through puddle, car dies. Calls me, and I tell him NOT to crank it over, but bust out the tools and pull the plugs. Says that the #5 squirted water at him when he loosened it.

                    Never quite ran 100% for the following days, and I told him I thought it sounds like it's knocking and has a bent rod.

                    Well, fast-forward around 1,000mi and a month later. and the thing just finally dies on the freeway.

                    I found a fist-size hole in the block when the tow truck dropped it off in my driveway.
                    sigpic
                    Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

                    Comment

                    • xxx-Lost-Soul-xxx
                      E30 Mastermind
                      • Apr 2008
                      • 1953

                      #11
                      Originally posted by jtapper
                      also, piston to valve contact will not bend a rod.

                      Detonation (lean condition) or water.

                      What's the backstory?
                      1995 540i/6 Car Was in very good shape before being sold 4 months ago.

                      Comment

                      • Jean
                        Moderator
                        • Aug 2006
                        • 18228

                        #12
                        1995 540i/6 is your story? LOL

                        D E T A I L S...... what happened etc...
                        Mtech1 v8 build thread - https://www.r3vlimited.com/board/sho...d.php?t=413205



                        OEM v8 manual chip or dme - https://www.r3vlimited.com/board/sho....php?p=4938827

                        Comment

                        • rhE-30
                          E30 Addict
                          • Oct 2011
                          • 498

                          #13
                          Sold 4 months ago? The problem with the engine... is not yours.

                          Comment

                          • JTapper
                            E30 Modder
                            • Sep 2009
                            • 847

                            #14
                            So what I'm going to assume here, is that you sold this car four months ago, and since then, it has developed a bent rod.

                            Is the new owner pushing blame on you for this? It's not like they bend over time, really. The bend, they're bent, and the engine runs like shit. Run it like shit for long enough and it'll spit the rod through the crankcase.

                            I'd tell them to pound sand.
                            sigpic
                            Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

                            Comment

                            • xxx-Lost-Soul-xxx
                              E30 Mastermind
                              • Apr 2008
                              • 1953

                              #15
                              The guy isnt asking for anything except some help.

                              About two weeks ago i get a call telling me. That since ive sold it he had the fan blow up and put a dent in the hood. Then last week he called me to tell me the car runs like poo.

                              I Tell him, i cant diagnose it as im 1000 miles away. That he should prob take it to a mechanic in town. So today i get a call telling me the shop came back with a Bent Rod.

                              I have an idea why it happened,but before i share what i think. Iwanted to see if what i think is logical or outof space.

                              Comment

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