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(Yet another) M42 top end refresh and engine reseal (mid-2021)

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    I've driven many 2002s but never an M42 swap. I'd think it would be a great match.

    Interestingly I haven't driven the 318is over 30mph (this was pre-engine reseal too) so I can't say what it will be like! We may get it moving this weekend which is really exciting. I'm buttoning up the interior now..


    1991 BMW 318is - AlpineWeiss II
    1991 BMW 318is - DiamondSchwartz
    1988 Acura Integra - Blue
    1973 BMW 2002 Tii - Baikal
    2002 Toyota 4Runner SR5 sport - Black

    Comment


      Originally posted by jsnppp View Post
      I've driven many 2002s but never an M42 swap. I'd think it would be a great match.

      Interestingly I haven't driven the 318is over 30mph (this was pre-engine reseal too) so I can't say what it will be like! We may get it moving this weekend which is really exciting. I'm buttoning up the interior now..
      Being a 2002 guy...you will immediately recognize the character of that car lives within the 318iS....and you will enjoy it tremendously. I still have a vivid memory of my first drive in an Alpine white over blue cloth 318iS - 22 years ago now. The free revving nature of the engine, combined with the perfectly weighted/excellent feedback from the front end is what made it memorable. Can't wait to hear your thoughts.

      Comment


        Good progress today. Planning for a drive tomorrow or monday.
        • Tracked down exhaust rattle. Found the middle hanger not connected and, most importantly, that the 02 sensor was loose. 30m of research for a 30 second fix.
        • Wiper fluid bottle installed
        • Front apron installed. Lots of wiring work tied to this effort. Everything is snug and clean now.
        • Brake cooling ducts in place.
        • Fog lights mounted but we still need to add the rubber surround.
        • Garage-grade alignment completed
        • Tightened all front end stuff, just to make sure.
        • Routed the ABS wiring and added the rubber grommets to engine bay
        • Headlights in place and leveled. Cracked one and so new one coming Monday.
        • Under dash drivers side wiring + speakers in place. We upgraded the speakers and so had to build a pigtail harness to handle the new bits (I don't like to cut things). Then had to route all the wires, etc. Installed speaker grill cover, drivers side door sill, hood latch
        • Installed gauge cluster plastic trim - we cut the lip back 1/2" to make it easier to fit back in.
        • Installed steering wheel - this was a bigger PITA than I remembered b/c of how it all fits back together. I thought I was doing it wrong until I remembered the steering nut had to be in place to let it rotate.
        • Resealed the Denso 10PA compressor (did this earlier, not today. won't know for some time if it actually worked)
        Doesn't look like much but it's nearly there.





        Last edited by jsnppp; 01-15-2022, 07:56 PM.

        1991 BMW 318is - AlpineWeiss II
        1991 BMW 318is - DiamondSchwartz
        1988 Acura Integra - Blue
        1973 BMW 2002 Tii - Baikal
        2002 Toyota 4Runner SR5 sport - Black

        Comment


          Left to do (primary)
          • Under dash panels drivers side
          • Drivers seat
          • Sunroof install (waiting on "BMW grease" to finish relube
          • Verify diff has fluid (99.999% sure we put it in but it's been so long now)
          • install brake line clip under drivers side (holds hard lines)
          Secondary
          • Fog lights
          • Passenger side mid-range speaker
          • Both front premium speakers (upgraded tweeters
          • CM5908 replace caps and test, install
          • Replace broken headlight
          • Line up the headlights
          Tertiary
          • Full repaint
          • Probably needs tires

          Not sure if anyone else has had this problem but the headlights we bought did not line up horizontally. There is only so much you can rotate them. Especially the passenger side high beam, it was angled down. My answer was to dremel the nub off of the glass headlight back to allow additional rotation. Worked well, but need to go over all of them..

          Once it's on the road we will get inspected and order plates..

          Getting close!
          Last edited by jsnppp; 01-16-2022, 07:42 AM.

          1991 BMW 318is - AlpineWeiss II
          1991 BMW 318is - DiamondSchwartz
          1988 Acura Integra - Blue
          1973 BMW 2002 Tii - Baikal
          2002 Toyota 4Runner SR5 sport - Black

          Comment


            Wow, awesome! I am really happy to see that this car is getting a pretty thorough rebuild.

            For the CM5908 re-cap, have you bought new caps yet? If not, don't bother with the "kits" that are out there, they overcharge for very generic-grade parts that they claim are "audio grade." You can order true automotive grade audio caps for less than $25. See the table below, it is the BOM I put together when I rebuilt one of these radios last year. Note that these are only the rear audio board caps...I did not replace the ones on the main logic board since they all seemed fine and are not in the audio path. If you want to do those you will have to catalog them when it is all opened up.

            If you want to do the backlight bulbs for the LCD, I used these. They are sort of overpriced, but I was not sure that I could find ones of the proper brightness on my own without a PN or some sort of spec. Don't bother with the cap kits they sell...I bought and returned one once I saw the lack of quality, hence selecting my own parts. They also sell a new drive band for the cassette player, but replacing that is a MAJOR undertaking. If it is working fine now, don't mess with the cassette transport lol...it is a nightmare to work on.
            https://www.germanaudiotech.com/prod...-back-lighting

            I sold the radio, but you may find some of the pictures useful for future reference.
            https://www.r3vlimited.com/board/for...08-w-code-pics


            Audio board cap BOM (missing reference designators, but you can just match them up to the ones you remove):
            Capacitance (uF) Voltage (V) Diameter (mm) Height (mm) Pitch (mm) AEC-Q200 Quantity Brand Mfr. PN
            4.7 25 5 11 2 Y 4 Nichicon UKT1E4R7MDD
            10 16 5 11 2 Y 1 Nichicon UKT1C100MDD1TD
            100 10 5 11 2 Y 5 Nichicon UKT1A101MDD
            220 10 6.3 11 2.5 Y 4 Nichicon UKT1A221MED
            1000 10 10 16 5 Y 4 Nichicon UKT1A102MPD
            2200 16 16 15 7.5 N 1 Nichicon URS1C222MHD1TN
            470 16 10 12.5 5 Y 2 Panasonic EEU-FC1C471B
            470 16 8 11.5 3.5 Y 1 Nichicon UKT1C471MPD
            Last edited by bmwman91; 01-16-2022, 10:32 AM.

            Transaction Feedback: LINK

            Comment


              Originally posted by jsnppp View Post

              Not sure if anyone else has had this problem but the headlights we bought did not line up horizontally. There is only so much you can rotate them. Especially the passenger side high beam, it was angled down. My answer was to dremel the nub off of the glass headlight back to allow additional rotation. Worked well, but need to go over all of them..
              Not sure if we faced the same issue, but I also had problems installing new sealed beams early last year. In my case the 3 nubs on the back did not line up with the slots in the buckets, but in my haste I tighted the rings down on them and figured it would hold. They eventually cracked that same day and stopped working, I originally thought I got some defective bulbs because of the trouble fitting them but the set i got to replace them also didnt seat correctly. So I gave up on the sealed beams and installed the euro smileys that I had be to lazy to fit. Never figured out why the new bulbs have a different mold.

              Love the build, It's coming along nicely. Hopefully I'll catch a glimpse of it at Radwood this year ;)

              Comment


                It moves!



                This morning I locked down most everything. Took the 10 tons of crap I had been storing on the roof, installed drivers seat, premium radio tweeters, passenger midrange, vacuumed it, adjusted throttle position, verified all lights work and then drove it around the neighborhood!

                Drove really well. Solid. Quiet. Drove straight too, amazingly. Brake fluid light came on, due to the dual reservoir, I didn't have enough in both sides. Filled it. Also reoriented the steering wheel. Took it out again with my wife and it was even better. No faster than 30mph, no real revs, just taking it easy. When my daughter comes home I'm sure we will go again.

                I like the exhaust note (so far). I'll take a video of it too.

                We are far from being "done" but the fact that I can move it out of the garage is huge. We changed nearly every hose, all suspension parts, all brakes, bearings, etc.

                Going to order tires for it before I get it aligned and inspected (same shop) so it can all be done at once. Not sure what size, but a bit meatier than the 185s that are on there. I believe I can still get 195/60-14s. 205s don't seem to be available in a size that will look ok.

                I'd love to bring it to radwood, not sure when that is in Austin? I'll bring it to the monthly BMW 2002 cars and coffee (trianon coffee in west lake) next month for sure.

                Feeling good!!
                Last edited by jsnppp; 01-16-2022, 08:36 PM.

                1991 BMW 318is - AlpineWeiss II
                1991 BMW 318is - DiamondSchwartz
                1988 Acura Integra - Blue
                1973 BMW 2002 Tii - Baikal
                2002 Toyota 4Runner SR5 sport - Black

                Comment


                  Really annoying that the 4th green brake lining LED appears to be out. Not a huge deal, I don't remember if it ever worked. But annoying because I am not going to take out the cluster again just for that!

                  1991 BMW 318is - AlpineWeiss II
                  1991 BMW 318is - DiamondSchwartz
                  1988 Acura Integra - Blue
                  1973 BMW 2002 Tii - Baikal
                  2002 Toyota 4Runner SR5 sport - Black

                  Comment


                    Originally posted by paulparra View Post

                    Not sure if we faced the same issue, but I also had problems installing new sealed beams early last year. In my case the 3 nubs on the back did not line up with the slots in the buckets, but in my haste I tighted the rings down on them and figured it would hold. They eventually cracked that same day and stopped working, I originally thought I got some defective bulbs because of the trouble fitting them but the set i got to replace them also didnt seat correctly. So I gave up on the sealed beams and installed the euro smileys that I had be to lazy to fit. Never figured out why the new bulbs have a different mold.

                    Love the build, It's coming along nicely. Hopefully I'll catch a glimpse of it at Radwood this year ;)
                    Would love euro smileys! Yes, the nubs on the sealed beams just don't line up very well overall.

                    1991 BMW 318is - AlpineWeiss II
                    1991 BMW 318is - DiamondSchwartz
                    1988 Acura Integra - Blue
                    1973 BMW 2002 Tii - Baikal
                    2002 Toyota 4Runner SR5 sport - Black

                    Comment


                      Originally posted by bmwman91 View Post
                      Wow, awesome! I am really happy to see that this car is getting a pretty thorough rebuild.

                      For the CM5908 re-cap, have you bought new caps yet? If not, don't bother with the "kits" that are out there, they overcharge for very generic-grade parts that they claim are "audio grade." You can order true automotive grade audio caps for less than $25. See the table below, it is the BOM I put together when I rebuilt one of these radios last year. Note that these are only the rear audio board caps...I did not replace the ones on the main logic board since they all seemed fine and are not in the audio path. If you want to do those you will have to catalog them when it is all opened up.

                      If you want to do the backlight bulbs for the LCD, I used these. They are sort of overpriced, but I was not sure that I could find ones of the proper brightness on my own without a PN or some sort of spec. Don't bother with the cap kits they sell...I bought and returned one once I saw the lack of quality, hence selecting my own parts. They also sell a new drive band for the cassette player, but replacing that is a MAJOR undertaking. If it is working fine now, don't mess with the cassette transport lol...it is a nightmare to work on.
                      https://www.germanaudiotech.com/prod...-back-lighting

                      I sold the radio, but you may find some of the pictures useful for future reference.
                      https://www.r3vlimited.com/board/for...08-w-code-pics


                      Audio board cap BOM (missing reference designators, but you can just match them up to the ones you remove):
                      Capacitance (uF) Voltage (V) Diameter (mm) Height (mm) Pitch (mm) AEC-Q200 Quantity Brand Mfr. PN
                      4.7 25 5 11 2 Y 4 Nichicon UKT1E4R7MDD
                      10 16 5 11 2 Y 1 Nichicon UKT1C100MDD1TD
                      100 10 5 11 2 Y 5 Nichicon UKT1A101MDD
                      220 10 6.3 11 2.5 Y 4 Nichicon UKT1A221MED
                      1000 10 10 16 5 Y 4 Nichicon UKT1A102MPD
                      2200 16 16 15 7.5 N 1 Nichicon URS1C222MHD1TN
                      470 16 10 12.5 5 Y 2 Panasonic EEU-FC1C471B
                      470 16 8 11.5 3.5 Y 1 Nichicon UKT1C471MPD
















                      Wow, fantastic! This is super helpful. Thank you. I need to digest all that you wrote here.. will reply more soon.

                      1991 BMW 318is - AlpineWeiss II
                      1991 BMW 318is - DiamondSchwartz
                      1988 Acura Integra - Blue
                      1973 BMW 2002 Tii - Baikal
                      2002 Toyota 4Runner SR5 sport - Black

                      Comment


                        Awesome. Highly recommend an aftermarket chip for the ECU if you haven't fitted one already, makes a big difference. Go out and drive the dinger out of it, they thrive on revs. Have fun
                        sigpic

                        (clicky on piccy to get to thread)

                        Comment


                          Originally posted by econti View Post
                          Awesome. Highly recommend an aftermarket chip for the ECU if you haven't fitted one already, makes a big difference. Go out and drive the dinger out of it, they thrive on revs. Have fun
                          Thanks econti

                          One other step (maybe today) is to check if it's been chipped already. It came from San Francisco and has Tuner motorsports stickers on it, so - maybe.

                          I actually hope it isn't chipped yet. Feels sprightly as it is!

                          I wanted to heat cycle it a few times before bringing up the revs too much. And give it a chance to verify leaks too.. (haven't been to the garage yet this morning to see what dripped - ha ha).

                          FCP delivery coming today (I don't want to add up what we have spent on shipping).

                          1991 BMW 318is - AlpineWeiss II
                          1991 BMW 318is - DiamondSchwartz
                          1988 Acura Integra - Blue
                          1973 BMW 2002 Tii - Baikal
                          2002 Toyota 4Runner SR5 sport - Black

                          Comment


                            If you do end up getting a chip, I recommend Sssquid Tuning very VERY highly. I worked with them for multiple years on reverse engineering the Motronic 1.7 ECU (which the M42 uses) and I am confident in saying that no other tuner out there knows it as well. On top of that, the quality of their work is top notch, with tunes that improve all operating areas (idle, partial throttle, wide-open throttle). I had a Turner/Conforti chip for several years. While they are certainly more fun than stock, the level of tuning in those is far less than what Sssquid does (the Conforti tunes were developed in the late 90's and I would be sort of surprised if Turner made any updates since the M42 is not exactly a widely popular engine). Anyway, Sssquid has off-the-shelf tunes for the M42 and they are very helpful if you have questions.

                            Transaction Feedback: LINK

                            Comment


                              Pull the DME out and pop the lid, takes all of 3min to do, if it's chipped it'll say. Other easy way is to see if it revs to 7k or 7200, stock redline is like 6500 or so.
                              Don't be afraid to beat on it.
                              sigpic

                              (clicky on piccy to get to thread)

                              Comment


                                Got caught up doing other car repairs today - mostly wasted some time changing fuel injector seals on a 1988 acura integra. I dropped one of the injector filters and b/c of that wasted 2 hours trying to find it in the engine compartment! Ah well. Never found it.

                                I'll absolutely look into the sssquid chip even if it has a turner in it..

                                ~~~

                                One thing new - the SI board needs to be pulled again. I don't like that one green LED is out nor that the econometer gauge doesn't work (it only moves when you rev it high). I tried swapping batteries but they didn't work despite being new. Then I read that new batteries without new transistors may cause other issues. So, I put the original batteries back but now have these two problems. Ugh! Bugs me that it was working before I changed the batteries but I thought I'd do the right thing and replace them while it's all out.

                                I may pull the SI board and reflow all solder connections I can reach, change the green LED and see if anything is burnt visually..

                                One thing at a time! Patience. At least it moves!
                                Last edited by jsnppp; Yesterday, 05:49 PM.

                                1991 BMW 318is - AlpineWeiss II
                                1991 BMW 318is - DiamondSchwartz
                                1988 Acura Integra - Blue
                                1973 BMW 2002 Tii - Baikal
                                2002 Toyota 4Runner SR5 sport - Black

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