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  4. The "Random E30 Questions" Thread

The "Random E30 Questions" Thread

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  • B
    B
    Boris3
    wrote on last edited by
    #10

    Stock m20 in the Spec e30, run 20w-50 dino.

    For the rear diff make sure you can open the fill plug before you open the drain plug.

    1990 325i racecar (ITS, former Spec E30); 2004 330i ZHP

    1 Reply Last reply
    1
    • ClassEC
      ClassEC
      ClassE
      wrote on last edited by
      #11

      straight6pwr said:

      SEM trim paint looks great and is high quality and matches the OEM trim look. however, like most paint, your trim that has been on the car in the sun for 30 years won't really match anything perfectly if you are trying to touch it up. repaint whole pieces for the best effect.

      Planning to do the whole lip, just want to be close in color/texture to bumper rub strips.

      Is SEM a brand? Never heard if it - will try to find locally.

      1 Reply Last reply
      0
      • EarlE
        EarlE
        Earl
        wrote on last edited by
        #12

        It is a brand. It is one of the best trim paints. It is lacquer based so it is thin and will be the same texture as your lip is now. O'Reillys is a supplier for it but they may need to order you a can. I had them order it for me when I was working on my hatch trim.

        museum sig 2earl.jpg

        1 Reply Last reply
        1
        • ClassEC
          ClassEC
          ClassE
          wrote on last edited by
          #13

          Acouple more:

          -I see people referencing "early" and "late" model taillights. Is the split on the taillight style the same as the bumper change from metal to plastic? Any overlap?

          -Are the rear parcel shelves the same between the 2-doors and 4-doors?

          -How do I reset the "oil change" interval LED thingy in the cluster?

          1 Reply Last reply
          0
          • EarlE
            EarlE
            Earl
            wrote on last edited by
            #14

            I believe the split follows the metal and plastic bumper change. The exception is that all e30 m3's use early tail lights=)

            museum sig 2earl.jpg

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            0
            • KaiserRollsK
              KaiserRollsK
              KaiserRolls
              wrote on last edited by
              #15

              I would assume the parcel shelves should be similar between two and four doors.

              Edit: just browsed realoem. Looks like the 2dr and 4dr window shelves have the same part numbers

              And I think you need a tool to reset the SIL in the dash

              -or jump some pins

              http://www.beckerelectronics.com/BMW/servicelightreset.html

              Just don't jump the wrong pins.

              Fwiw, mine are on, I try not to look at them

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              0
              • ClassEC
                ClassEC
                ClassE
                wrote on last edited by
                #16

                Lesson learned from doing inner tie rods: they utilize a "lock plate" to secure the inner tie rod to the rack.... Order new ones before starting project.

                1 Reply Last reply
                0
                • TehRaydarloverT
                  TehRaydarloverT
                  TehRaydarlover
                  wrote on last edited by
                  #17

                  Do people typically not over bore their m20 when rebuilding it for boost? Is it safe to do an overbore for boost?

                  Untitled1zps3446a42f.png

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                  0
                  • jc43089J
                    jc43089J
                    jc43089
                    wrote on last edited by
                    #18

                    No need to bore it unless cylinders are out of spec, I tore one down with 280+k (broken odo) and it was still in spec.

                    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
                    • m42b32M
                      m42b32M
                      m42b32
                      wrote on last edited by
                      #19

                      Well, this is probably the place to ask this (oil questions again):

                      I need to change my oil again (e30 318is, 1000 miles of driving will be occurring in the next 10 days) and I don't know what oil I should use because there is no concrete answer for m42 cars. I don't want to go to a full synthetic because I don't want any more leaks to develop. I currently have castrol gtx high mileage 10w-40 and it was pretty good in the colder weather but I have been noticing a lot more audible ticking at lower RPM's (possibly due to the oil being too thin?) recently as the temperatures have been steadily 65+. Would changing to 20w-50 (probably castrol gtx high mileage again) be a good choice for the summer or would it put too much strain on the pump/not flow well on startup/etc in WI summer temperatures? This weight seems to be the consensus on m20's but for the m42 I can't find a consistent answer.

                      Sent from my DROID RAZR HD using Tapatalk

                      1991 318is, 1991 318i, 2022 Bronco

                      1 Reply Last reply
                      0
                      • EarlE
                        EarlE
                        Earl
                        wrote on last edited by
                        #20

                        20w-50 or 15w-50 would be great=-)

                        museum sig 2earl.jpg

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

                          BMW engines all tick like a sewing machine, I would not be concerned about that.  I would also use synthetic but that's my personal preference.  I just filled my new to me m20 with 150k on it with royal purple 10w-40.

                          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
                          • mkoeppM
                            mkoeppM
                            mkoepp
                            wrote on last edited by
                            #22

                            I found this on MyE28.com on how to reset your service interval lights. I am sure it is the same for the E30. 

                            http://www.mye28.com/viewtopic.php?t=35609

                            My best suggestion for anyone working on old BMW's is to get a Bentley Service Manual for their MY car and read the whole thing. Tons of info and tips. 

                            One cool thing I have found out and used is that you can activate the starter with the diagnostic port. Very useful when adjusting valves.

                            1 Reply Last reply
                            0
                            • m42b32M
                              m42b32M
                              m42b32
                              wrote on last edited by
                              #23

                              Earl said:

                              20w-50 or 15w-50 would be great=-)

                              That's what I was thinking, I would really like 15w-50 but I can only get that as a full synthetic, so I am really leaning towards the 20w-50.

                              jc43089 said:

                              BMW engines all tick like a sewing machine, I would not be concerned about that.  I would also use synthetic but that's my personal preference.  I just filled my new to me m20 with 150k on it with royal purple 10w-40.

                              Its the worst haha, the reason I am putting so much thought into it is that my engine just seems to be louder than my old m42 so I want to see if I can quiet it down. In my old car I switched to mobile 1 full synthetic and I had an oil pan gasket leak pretty soon after so I am wary of accelerating any leaks I already have, has anyone else had that problem?

                              mkoepp said:

                              I found this on MyE28.com on how to reset your service interval lights. I am sure it is the same for the E30.  http://www.mye28.com/viewtopic.php?t=35609 My best suggestion for anyone working on old BMW's is to get a Bentley Service Manual for their MY car and read the whole thing. Tons of info and tips.  One cool thing I have found out and used is that you can activate the starter with the diagnostic port. Very useful when adjusting valves.

                              It looks like a similar process, I've always done the paperclip technique to reset it haha. The e30 Bentley doesn't cover the m42 so I haven't bought it yet, but I do have the e36 Bentley which does. The e36 Bentley recommends 15w-40 for the summer so maybe I will just stay with what I have. I guess ultimately it doesn't make a ton of difference as long as I'm not going WAY far away from the original spec Sent from my DROID RAZR HD using Tapatalk

                              1991 318is, 1991 318i, 2022 Bronco

                              1 Reply Last reply
                              0
                              • KaiserRollsK
                                KaiserRollsK
                                KaiserRolls
                                wrote on last edited by
                                #24

                                I run valvoline max life 20w-50. In the m50 though.

                                1 Reply Last reply
                                0
                                • andyhundleyA
                                  andyhundleyA
                                  andyhundley
                                  wrote on last edited by
                                  #25

                                  I run 10w-40 Mobil clean 5000 in the spring and 20w-50 in the summer in my m20.

                                  1 Reply Last reply
                                  0
                                  • RamRod E28R
                                    RamRod E28R
                                    RamRod E28
                                    wrote on last edited by
                                    #26

                                    I run farm and barn 15w-40 dizzle oils in my m20 in the e28 for my first oil flush thing in my super eta that i just swapped in

                                    1984 BMW 528e - SETA and manual swapped! M50 to come!!!

                                    1988 BMW 528e - Need parts?

                                    1991 Chevy C1500 (mighty 350 with TBI and Wisconsin weight reduction package)

                                    1996 Mazda Miata (SOLD!!!)

                                    1996 BMW 325i (Donor car)

                                    1998 Chevrolet Corvette (BEAST)

                                    2001 Jeep Grand Cherokee (BROKEN)

                                    3bc80c27-0937-43e3-9e7f-00404a337ec1zps

                                    1 Reply Last reply
                                    0
                                    • jc43089J
                                      jc43089J
                                      jc43089
                                      wrote on last edited by
                                      #27

                                      The only way synthetic oil can "cause" a leak is by cleaning sludge buildup that is currently clogging a potential leak.  Some people think it damages seals/gaskets somehow, this is purely a myth.  I prefer to have the inside of my engine look like this, perfectly clean, no sludge anywhere.  This is after 5 years/45k after a rebuild.  I change the oil with royal purple HPS once a year (about 10k)

                                      021zps492247e5.jpg

                                      I also use Synthetic in my Maxima and Land Cruiser.  The Maxima did not start leaking and it had conventional oil until I switched around 170k, it is now at almost 220k.  The Land Cruiser leaks alot, but it did that before I made the switch, it is hard to tell if it is any worse so I'm not sure.

                                      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
                                      1
                                      • m42b32M
                                        m42b32M
                                        m42b32
                                        wrote on last edited by
                                        #28

                                        Thanks for all the info guys, I ended up getting screwed on time and didn't change my oil yet. I went through the service history a bit and found that it had been run on castrol syntec for a while (full synthetic) so I am going to switch to a synthetic 15w50

                                        1991 318is, 1991 318i, 2022 Bronco

                                        1 Reply Last reply
                                        0
                                        • D
                                          D
                                          Derflaminflitzer
                                          wrote on last edited by
                                          #29

                                          Rotella t 15w40. Its super cheap and im pretty sure my m42 loves it. So did my 1975 honda cb550. I wont use anything else ever

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