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    #61
    deleted
    Last edited by Wanganstyle; 09-09-2020, 04:48 PM.
    OBD1 M54/M52TU swap as a M50b25

    Z4 non powered steering rack fits e30



    Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

    Comment


      #62
      Agreed, the planetary gear pins "can" wear groves in to the the freshly cut ramps, but I have not seen this happen yet. There are literally hundreds of these ramps in use in the UK track/drift scene and no reports of undesired wear over the norm.

      I will soon take apart my LSD and will check for wear.

      Andrew


      Andrew AT E30zone.co.uk | H23-is | S14

      Comment


        #63
        This is probably a post full of dumb questions, but hopefully you can put me straight!

        can I grind ramp angles on one side only giving me 30-degrees for accel and the stock 45-degrees for decel? If so which side needs doing? I know it depends which way up you assemble them but...

        Second dumb question - I need to get one of the "ramp units" clutch faces ground; the previous owner of the diff ran the clutches down to zero on one side and there is some small amounts of surface damage.. Can I just grind one or should I do both the same amount? One is perfect, one has some material transfer/damage.. I am thinking of running this diff with 3x clutches/steels so I don't need to machine anything for clearance, just to remove the material transfer/damage from the clutch face

        Comment


          #64
          deleted
          Last edited by Wanganstyle; 09-09-2020, 04:48 PM.
          OBD1 M54/M52TU swap as a M50b25

          Z4 non powered steering rack fits e30



          Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

          Comment


            #65
            Thanks for the detailed reply, I appreciate it
            I am planning on having near enough standard static lock as I don't want it to be too grabby, also I don't want to have to maintain it too much with shimming, etc.
            I will let you guys know how I get on
            Ben

            Comment


              #66
              Have you ever seen clutch material melted to the larger of the two clutch contact surfaces? I'm not even sure what to call them, only that they are not the dog years. I'm wondering if it can be ground off, or if they can be resurfaced. More details and pictures here if you're curious.
              -------------------------------------------------
              1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
              2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver

              sigpic

              I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!

              Comment


                #67
                deleted
                Last edited by Wanganstyle; 09-09-2020, 04:48 PM.
                OBD1 M54/M52TU swap as a M50b25

                Z4 non powered steering rack fits e30



                Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

                Comment


                  #68
                  Originally posted by Wanganstyle View Post
                  Your clutch discs were severely worn and the inner teeth stripped.
                  Stress from burnouts and drag launches killed/overheated and melted metal onto the center ramp sections.

                  You need new clutch discs and steels fitted to make up material lost and center ramps to be precision ground flat.

                  Sent from my GT-N7100 using Tapatalk 2
                  Thanks for the information here and on my linked thread.

                  Additional question that I haven't heard discussed here or on other "refresh" threads.

                  When re-assembling everything, what do you look for to determine whether you have all your measurements correct? Obviously you measure twice, cut once, and do so in a precise manner. But if something ends up being off, how do you recognize that you have too much or too little material?

                  Thanks!
                  -------------------------------------------------
                  1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
                  2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver

                  sigpic

                  I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!

                  Comment


                    #69
                    Three Questions for those that know:
                    1. When discussing compensating for worn items that produce extra slack, how kind of slack are we talking about? 0.2mm? 2.0mm?
                    2. How much more/less thickness can the diff tolerate if the spring plate is kept in place? You state the tolerance is a lot tighter when it's removed, but I'm not sure what the starting point is.
                    3. What is a stock depth for the ramp angle piece, from clutch surface to opposite side?


                    I just measured my dog ears at 2.11mm, which makes me think I have the porsche discs already, and not the stock 2.0mm discs. This gets me to wondering if anything else has been modified. I have the correct number of pieces for a stock diff, no more no less, but I wouldn't know how to tell if anything has been exchanged/ground without measurements for a stock unit. I'm also not exactly sure how much to compensate for what I find. Thanks guys!
                    -------------------------------------------------
                    1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
                    2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver

                    sigpic

                    I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!

                    Comment


                      #70
                      deleted
                      Last edited by Wanganstyle; 09-09-2020, 04:49 PM.
                      OBD1 M54/M52TU swap as a M50b25

                      Z4 non powered steering rack fits e30



                      Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

                      Comment


                        #71
                        So, I'm looking for the stock clutch replacement, and "The Part Number" appears to be 951 332 551 00.

                        I have two different sources telling me two different thicknesses for that clutch, 2.0mm and 2.5mm. Which one is it?

                        Does anyone have a part number for other compatible clutch thicknesses?
                        -------------------------------------------------
                        1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
                        2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver

                        sigpic

                        I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!

                        Comment


                          #72
                          deleted
                          Last edited by Wanganstyle; 09-09-2020, 04:49 PM.
                          OBD1 M54/M52TU swap as a M50b25

                          Z4 non powered steering rack fits e30



                          Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

                          Comment


                            #73
                            Originally posted by Wanganstyle View Post
                            Above part number is the thicker one you should use. Grind down the center ramps as minimal as possible than make up the difference in the steel plates

                            Post the best supply pricing for this as im sure many others would like to know. I just buy them dealer direct as they are often in stock.

                            Sent from my GT-N7100 using Tapatalk 2
                            I'll be sure and post the best price once I confirm what everyone is carrying. Of the three places that I've found, one doesn't say, one says 2.0, and one says 2.5. I have inquiries out to each of those three companies asking them to verify the part number and thickness.

                            To be absolutely clear, you believe that the part number 951 332 551 00 belongs to a 2.5mm disc?

                            And to be absolutely clear, the stock disc is a 2.0mm disc, correct?
                            -------------------------------------------------
                            1989 - E30 - M20B25 - Manual. Approx 300,000+ miles - Track Rat & Weekend Fun
                            2000 - E46 - M52TUB28 - Manual. Approx 130,000 miles - [not so] Daily Driver

                            sigpic

                            I'm looking for a Lachssilber Passenger Fender and Hood. PM if you have one or both to sell!

                            Comment


                              #74
                              Originally posted by Wanganstyle View Post
                              LSD seems to be a popular subject these days;

                              I will try to answer things I know definate answers to in this thread.

                              There are 3 Era's of E30/36/34/32 188mm LSD:
                              This isn't specifically LSD related, but do you have the part number for the E36 VSS trigger wheel?
                              Can you confirm it is 33 13 1 210 755?
                              I'm putting an E36 rear cover on an E30 viscous LSD. I can't use the E36 wheel because the OD of the VLSD where the wheel installs is different than the OD of the clutch LSD where its wheel installs. I plan to trim the E30 VLSD wheel (and have bought spares as that PN is listed on RealOEM), but would like to have the E36 wheel to measure directly, but it's not listed on RealOEM.

                              Thanks!

                              Comment


                                #75
                                deleted
                                Last edited by Wanganstyle; 09-09-2020, 04:49 PM.
                                OBD1 M54/M52TU swap as a M50b25

                                Z4 non powered steering rack fits e30



                                Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine

                                Comment

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