Building an M42

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  • bmwman91
    No R3VLimiter
    • Oct 2004
    • 3128

    #91
    Yeah, as far as I know the incessant rattle is due to the lighter flywheel not damping engine vibrations as much, so the G240 input shaft rattles around. Look up "Getrag rattle" on the web, it seems to be pretty common. Car enthusiasts of all sorts of makes and models complain about rattle noises after LTW flywheel swaps.

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    • DER E30
      R3VLimited
      • Sep 2013
      • 2343

      #92
      Wow, that means I'm probably not the only person that drives around with the gas pedal sitting right where the secondary opens... And rev matches into 3rd whenever I get out of the gas ... Lol
      -Christian

      '02 ///M3 CarbonSchwartz 6MT daily beast
      08/91 Mtechnic II 325IC alpine/lotus
      318iS, slow build/garage queen...
      '37 Chevy pickup, the über project
      Originally posted by roguetoaster
      Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

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      • bmwman91
        No R3VLimiter
        • Oct 2004
        • 3128

        #93
        I found a much easier solution....I just stopped giving a damn if people in adjacent cars / pedestrians think that my car is rattling itself apart. I mean, it IS, but maybe not as quickly as it sounds like it is.

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        • DER E30
          R3VLimited
          • Sep 2013
          • 2343

          #94
          That's true, it is rattling itself apart, slowly. The rattle is kind of a drag when going down something like the North Cascade Highway or some other mountain pass. Also when picking up a girl or whatever, "Oh that noise? That's perfectly normal." Just not something any of the other bimmers I've driven have done.

          Anywho... Stroker motors right?? I'd love one but I think I'd just go s54 when the time comes...
          -Christian

          '02 ///M3 CarbonSchwartz 6MT daily beast
          08/91 Mtechnic II 325IC alpine/lotus
          318iS, slow build/garage queen...
          '37 Chevy pickup, the über project
          Originally posted by roguetoaster
          Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

          Comment

          • I8UR911
            Wrencher
            • Jan 2013
            • 260

            #95
            No engine updates as I'm still waiting on Dbilas......they suck!

            Did install a reman Z3 1.9 rack......holy shit! Best upgrade so far. Point and go feel. Heavier than standard e30 rack, but awesome!

            Also installed GC coils with KMAC camber plates. Spring rates are 525F and 700R. Running -2.5* camber in front. Car handles great.

            Installing sump armor next weekend too......gotta protect the engine build :)

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            • bmwman91
              No R3VLimiter
              • Oct 2004
              • 3128

              #96
              Nice! Yeah the Z3 1.9 rack is the shit.

              When you get that dBilas ITB, can you take some good, close shots of it? And maybe measure the distance from the mount flange to the center of the throttle plates? I am working on an idea for "stealth" / OEM looking ITBs and one difficult area is picking the distance of the throttle plates from the injectors.

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              • I8UR911
                Wrencher
                • Jan 2013
                • 260

                #97
                Guess what finally showed up?! :)

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                • DER E30
                  R3VLimited
                  • Sep 2013
                  • 2343

                  #98
                  Itb's!????!?????
                  -Christian

                  '02 ///M3 CarbonSchwartz 6MT daily beast
                  08/91 Mtechnic II 325IC alpine/lotus
                  318iS, slow build/garage queen...
                  '37 Chevy pickup, the über project
                  Originally posted by roguetoaster
                  Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

                  Comment

                  • I8UR911
                    Wrencher
                    • Jan 2013
                    • 260

                    #99
                    Sorry for the lousy pic :)
                    Attached Files

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                    • DER E30
                      R3VLimited
                      • Sep 2013
                      • 2343

                      #100
                      Kool!!!
                      -Christian

                      '02 ///M3 CarbonSchwartz 6MT daily beast
                      08/91 Mtechnic II 325IC alpine/lotus
                      318iS, slow build/garage queen...
                      '37 Chevy pickup, the über project
                      Originally posted by roguetoaster
                      Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

                      Comment

                      • I8UR911
                        Wrencher
                        • Jan 2013
                        • 260

                        #101
                        More updates

                        Been ordering more parts and finally received the head back from the machine shop. Picked up an eBay ceramic coated header for $200. Also picked up a Kopi ACS rear apron and Reiger side skirts. Ordered intake and exhaust gaskets today so I can port match them. Also ordered other misc items that will be needed.

                        Sent from my SCH-I535 using Tapatalk
                        Attached Files

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                        • I8UR911
                          Wrencher
                          • Jan 2013
                          • 260

                          #102
                          Should be picking the car up from the place I store it for the winter next week. Project well be underway shortly :-)

                          Sent from my SCH-I535 using Tapatalk

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                          • I8UR911
                            Wrencher
                            • Jan 2013
                            • 260

                            #103
                            Click image for larger version

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                            Started tear down today. A/C almost gone, cooling stuff torn out, no more old intake manifold.......

                            The fun gets to be real fun tomorrow. Pulling the head and preparing for new head with cams, lightweight lifters, 19lb injectors, header.....AND ITB'S!!!!

                            Can't wait to hear this thing.

                            Sent from my SCH-I535 using Tapatalk

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                            • I8UR911
                              Wrencher
                              • Jan 2013
                              • 260

                              #104






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                              • I8UR911
                                Wrencher
                                • Jan 2013
                                • 260

                                #105
                                What do you guys recommend for engine assembly lubricant?

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