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  4. 88' E30 IX

88' E30 IX

Scheduled Pinned Locked Moved New Member Introduction
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  • TehRaydarloverT
    TehRaydarloverT
    TehRaydarlover
    wrote on last edited by
    #20

    I was advised this:

    measure the shaft diameter

    throw the bearing in a lathe and machine it

    press it in

    use a brake cylinder hone to get it to tolerance

    touch it up with a green scotch brite

    .001-.0015" clearance,002" max

    Untitled1zps3446a42f.png

    1 Reply Last reply
    0
    • jc43089J
      jc43089J
      jc43089
      wrote on last edited by
      #21

      Yep, I didn't have access to a lathe so I took it all the way with the brake cylinder hone, it just takes forever, the problem is the stones plug up from the bearing material very quickly.  Once the stones were broken in the left a very nice finish though and then I wrapped a strip of scotch brite around the hone and used the drill to polish it evenly.  Keep everything oiled and the finish should turn out good.  Worst case is try it again, the bearing is less than 10 bucks.

      2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
      3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
      '89 325i Vert, Alpine White: 5spd swapped, sold.

      '04 Toyota Sienna: 24V to 24V swap in progress

      '05 Volvo V70R, 6spd.  200k
      '85 Toyota LandCruiser: Lifted, gas hog. 205k
      '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

      1 Reply Last reply
      0
      • TehRaydarloverT
        TehRaydarloverT
        TehRaydarlover
        wrote on last edited by
        #22

        Yeah I planned on getting two of each just in case. I was thinking I could probably do it at MSOE's machine shop and maybe have one of the techs help me with the machining. While I'm there I also need to machine the intermediate shaft itself to clear a 89.6 stroke crankshaft. Do you remember about how much you had to take off for it to fit?

        Untitled1zps3446a42f.png

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        0
        • jc43089J
          jc43089J
          jc43089
          wrote on last edited by
          #23

          I just did a stock rebuild on a 2.5 so I didn't have to do any machining to the shaft.

          2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
          3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
          '89 325i Vert, Alpine White: 5spd swapped, sold.

          '04 Toyota Sienna: 24V to 24V swap in progress

          '05 Volvo V70R, 6spd.  200k
          '85 Toyota LandCruiser: Lifted, gas hog. 205k
          '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

          1 Reply Last reply
          0
          • TehRaydarloverT
            TehRaydarloverT
            TehRaydarlover
            wrote on last edited by
            #24

            Sorry that was out of order meant the bearing. How undersized was the bearing?

            Untitled1zps3446a42f.png

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            0
            • jc43089J
              jc43089J
              jc43089
              wrote on last edited by
              #25

              Oh, if I remember right about 10 to 12 thousandths.

              2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
              3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
              '89 325i Vert, Alpine White: 5spd swapped, sold.

              '04 Toyota Sienna: 24V to 24V swap in progress

              '05 Volvo V70R, 6spd.  200k
              '85 Toyota LandCruiser: Lifted, gas hog. 205k
              '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

              1 Reply Last reply
              0
              • TehRaydarloverT
                TehRaydarloverT
                TehRaydarlover
                wrote on last edited by
                #26

                Alright sounds good, thanks!

                Untitled1zps3446a42f.png

                1 Reply Last reply
                0
                • I
                  I
                  industrialsized
                  wrote on last edited by
                  #27

                  if you get me the bearing and the exact dimension you want i can throw it on an id grinder at work

                  1 Reply Last reply
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                  • jc43089J
                    jc43089J
                    jc43089
                    wrote on last edited by
                    #28

                    industrialsized said:

                    if you get me the bearing and the exact dimension you want i can throw it on an id grinder at work

                    This would be interesting to see how well it works, the bearing material is so soft that it might gum it up.  It clogged the stones of the brake cylinder hone in seconds even with lots of oil.

                    2/94 325i Sedan, Arctic Gray: UUC LTW FW, EVO 3 and DSSR, +.020 Maxsil pistons, ASC delete, Eibach shocks/springs, 16" contour reps 238k
                    3/93 325i Coupe, Schwarz 2, Sketchy stance action, ebay turbo, 300k
                    '89 325i Vert, Alpine White: 5spd swapped, sold.

                    '04 Toyota Sienna: 24V to 24V swap in progress

                    '05 Volvo V70R, 6spd.  200k
                    '85 Toyota LandCruiser: Lifted, gas hog. 205k
                    '99 Nissan Maxima: 5spd, Rusty but trusty winter beater. 252k RIP.

                    1 Reply Last reply
                    0
                    • TehRaydarloverT
                      TehRaydarloverT
                      TehRaydarlover
                      wrote on last edited by
                      #29

                      The first machining would be just to get it close. When you press the bearing in its going to change the inner diameter a little. With the bearing pressed in use the brake cylinder hone to get it within tolerance. To do it right you need to machine it with the the bearing pressed into the block. I might try and press it in and use the cnc machine here at school.

                      Untitled1zps3446a42f.png

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