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Thread: SMG tranny to manual?

  1. #226
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    Quote Originally Posted by Talen77 View Post
    Does anyone remembers which plug to disconnect from cluster to get rid of the smg

    thanx Talen

    It should be the blue connector.

  2. #227
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    1998 M3 Convertible
    Hallo Guys..........ladies included!!
    Guess What......it seems I always end being a social case..........nut.......whatever you wanna call it......it so hapens that I lent a good buddy of mine some quid and he blew it all away and all that he could do was give me his 1998 SMG M3 Convertible Euro spec to settle the debt......well before you guess again....you probably already know the reason why I am posting here.....the vehicle does not engage its smg and to even tow it to my place of residence, I had to get a lowbed truck.....
    Have read a few of the forums here and let me start by saying that all you guys have huge gondolas......waaaaaaaaaaaw.......to attempt things like a conversion frm smg to manual.....totally amazing.......congrats to whoever got it right.....an F1 career is waiting in the wings!!!! Most definitely!!
    That said, guys I desperately need your help! I live in India and due to the prohibitive import rules in the past & present, few of these kind of womds(weapons of mass destruction) were imported thus to get technical info is virtually impossible. Therein starts my problem.........could somebody please, please, please give me the exact details on how to convert an SMG gearbox to manual.I am willing to shop a conversion kit from either Zionsville autosport or UUC..but from what I have read, there is more to just swapping the transmission. Has any one of you guys got the whole process in pics, wording & details on the electronics that need to be sorted to get this womd up and running.....sorry about this whole thread again.it is just that apart frm being a ardent car magazine fan, I have no experience whatsoever in the complex yet alluring world of cars....

  3. #228
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    1975 Volvo 242
    Hi. I´m Tomas from sweden.
    Is there anyone who knows the partnumbers on part 4 and the bearing below 5 on this picture


  4. #229
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    Why do you need the part number of part 5, it is inside the gearbox already.

    Bearing size: 22mm(outer diameter)/8mm(hole)/7mm(thick)
    Last edited by ellislau; 07-29-2010 at 11:07 AM.

  5. #230
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    Quote Originally Posted by ellislau View Post
    Why do you need the part number of part 5, it is inside the gearbox already.

    Bearing size: 22mm(outer diameter)/8mm(hole)/7mm(thick)
    Not part 5, I need part number on part 4 the spring.
    Thanks for the dimensions of the bearing

    As you wrote, I already have part 5.
    Last edited by TomasS; 07-29-2010 at 11:53 AM.

  6. #231
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    Quote Originally Posted by TomasS View Post
    Not part 5, I need part number on part 4 the spring.
    Thanks for the dimensions of the bearing

    As you wrote, I already have part 5.
    Why do you need the part number of part 4, it is inside the gearbox already.

  7. #232
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    Quote Originally Posted by ellislau View Post
    Why do you need the part number of part 4, it is inside the gearbox already.
    No not in my gearbox. It is from E46 whit SMG II

  8. #233
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    99 m3/97 evo m3/93 325is
    Yes I am doing the same as TomasS I do not have that spring either...I am just going to try it without that spring.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  9. #234
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    Without the spirng, the gear shift can move freely between 1-2 and 3-4 and will not automatic center in 3-4.

    Part 4 may fit as subsitution:

    http://bmwfans.info/parts/catalog/E3...hifting_parts/
    Last edited by ellislau; 08-05-2010 at 09:13 AM.

  10. #235
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    ill have to check, if not I think I can come up with something. I realize that is the helper for mid shift location. I dropped my bell housing off to a shop that does my transmission work so they can machine the bores since our angle plate has come missing for our CNC at work...

    I dont think that sping or something like it will be too difficult to locate.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  11. #236
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    Quote Originally Posted by bedema View Post
    that lateral and longitudinal readout was very cool...i saw it on the computer and i was very amazed only smg version have that!!!
    it is like playing play station gt5
    I am going to try to use these with Motec and datalog them.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  12. #237
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    ....
    Last edited by ellislau; 06-21-2011 at 11:42 AM.

  13. #238
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    OK I now have the program in my CNC for machining these holes and cutting the C-Clip slot.

    Anyone that needs their bell housing converted let me know. We can do the conversion and we are located in Houston. The turn around time will be 3 days provided the CNC is not busy.

    I will post pictures once i finish installing the stuff in it later today.
    Last edited by zparker; 08-26-2010 at 12:25 PM.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  14. #239
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    ....
    Last edited by ellislau; 06-21-2011 at 11:41 AM.

  15. #240
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    Quote Originally Posted by ellislau View Post
    Without the spirng, the gear shift can move freely between 1-2 and 3-4 and will not automatic center in 3-4.

    Part 4 may fit as subsitution:

    http://bmwfans.info/parts/catalog/E3...hifting_parts/
    Negative Sir! I substituted to using a slightly larger bearing which takes out a lot of the play. I plan to install tonight, I will update. I bought it and it did not fit.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  16. #241
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    Pics.
    Attached Images Attached Images
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  17. #242
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    Quote Originally Posted by zparker View Post
    Negative Sir! I substituted to using a slightly larger bearing which takes out a lot of the play. I plan to install tonight, I will update. I bought it and it did not fit.


    Hi zparker, thanks for the pic, the holes look nicely machined.

    Be aware that if using bearing with any diameter size other than 22mm, it will seriously affect gear shifting on 1st and 2nd gears. We tried using a 21mm and ended up removing the gear box again and replacing it with a exact 22mm diameter bearing.
    Last edited by ellislau; 08-27-2010 at 08:46 AM.

  18. #243
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    I am not seriously worried about this, I use 1st and 2nd gear leaving the pits only. 3456 are my important gears. But mine is a track only car. 1st and 2nd are not an issue with the larger bearing.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  19. #244
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    With a bigger bearing, you will need to move the shift a bit over the "Reverse" gear position and have the reverse locking pin compress a bit in order to get into the 1st gear slot. As reverse locking pin spring is relatively hard, you may have problem on shift to 2nd gear, as the compressed reverse locking pin will force the shift back to neutral position.

    Suggest you to try the complete shift mechanism with the gearbox assembled before putting it back to the car.

  20. #245
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    Nope. Everything is fine. Shifts great.
    98 Euro E36 M3 (ExSMG)/99 M3 Daily Driver/93 M3 (S54) TBD-hp/TBD-tq ) Current NASA track record holder TTD on street tires @ 3450lbs (Eagles Canyon 2:05.3, MSR-Houston 1:47.08)S52E36 TWS CCW 1:54.8, COTA 2:30.6 Race Lap 3yr old 245/40/18 Hankook Z214 C51)

  21. #246
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    Red face SMG to Manual

    Hi,

    Hi I am currently looking at converting my SMG to a five speed manual as the SMG is fooked, the actuator is knackered and it burnt out my clutch n flywheel. Clutch n flywheel replaced tho ...now for the SMG to be removed ...PLEASE HELP !!

    Please could you advise me the parts required to do this and step by step instruction in laymans terms; including nicce pretty pics n diagrams if possible :-)

    My car is a 1998 BMW M3 Evo 3.2 convertible. I have purchased the five speed gearbox on its own...but obviously require gearstick, clutch pedals etc.

    I also believe that the engine can stop working if the SMG ecu etc is not altered or bypassed.???

    Any help..much appreciated

  22. #247
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    98m3estoril,
    If you still have your SMG for sale please contact me, I need the actuator but will purchase everything for when the next problem happens.
    Regards

  23. #248
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    Quote Originally Posted by Tassie View Post
    98m3estoril,
    If you still have your SMG for sale please contact me, I need the actuator but will purchase everything for when the next problem happens.
    Regards
    Hi Tassie - I am unable to send you a private message as your post count is too low! Feel free to send an email

    Moderator - apologies if I am not supposed to provide email address in post

    Thanks

    Quote Originally Posted by REOSue View Post
    Hi,

    Hi I am currently looking at converting my SMG to a five speed manual as the SMG is fooked, the actuator is knackered and it burnt out my clutch n flywheel. Clutch n flywheel replaced tho ...now for the SMG to be removed ...PLEASE HELP !!

    Please could you advise me the parts required to do this and step by step instruction in laymans terms; including nicce pretty pics n diagrams if possible :-)

    My car is a 1998 BMW M3 Evo 3.2 convertible. I have purchased the five speed gearbox on its own...but obviously require gearstick, clutch pedals etc.

    I also believe that the engine can stop working if the SMG ecu etc is not altered or bypassed.???

    Any help..much appreciated
    hi cheif

    i did something similar, but with a 6 speed box

    you should be able to get a shifter / shift knob / shift boot fairly easily either new or second hand. try a wrecker first but make sure the shift bushings are decent

    i would buy a brand new clutch pedal, as i found the used one i got to be a bit sloppy.

    here is the diagram and part numbers for the clutch pedal:

    http://www.realoem.com/bmw/showparts...54&hg=35&fg=05

    i would recommend dodging the OEM clutch pedal bushings as they fail over time. i got my delrin clutch pedal bushings from AKG motorsport

    http://www.akgmotorsport.com/

    then you'll need the clutch master / slave cylinder and all lines / grommets etc

    the diagram is here:

    http://www.realoem.com/bmw/showparts...59&hg=21&fg=10

    you need parts 1,2,3,4,5,6,7,8,9,10,11,13,23,24,22,21,14,18,17 on the diagram as far as i know

    23,24,22 can be replaced with a HEL braided clutch line, which you can get off eBAY etc and is probably a better way to go

    Once the SMG computer is removed, your car won't start anymore. This is because your main computer waits to get an "OK" from the SMG computer before it will let you start.

    All you need to do is "trick" the start recognition relay by wiring it so it always sees the "OK" from what it thinks is the SMG computer

    This is explained earlier in this thread with diagrams. I would definitely recommend reading over this thread multiple times as it answers all of your questions!

    All of the above diagrams / part numbers etc also assume you have a RHD car

    The last thing to consider is any driveline compatibility issues with the 5 speed - I don't know the answers here as I used the 6 speed. I am not sure if the 5 speed just marries up with the clutch / driveshaft but I'm sure its probably been tried before so the info should be out there.

    Hope this helps!
    Last edited by 98m3estoril; 09-08-2010 at 10:31 PM. Reason: Automerged Doublepost

  24. #249
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    Thanks 98m3estoril,
    Have sent message and now know why I can't PM.
    Tassie

  25. #250
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    Quote Originally Posted by ellislau View Post
    Hi DusM3,

    i finally acquired a engine wire loom from a 98 manual M3, it has connectors for the clutch line pressure switch and gear position indicator switch.

    The connection is as following:

    [DME PIN 19]-----[Gear Indicator Switch]------[Clutch Line Pressure Switch]------[DME PIN 80 ]

    It seems PIN 19 is providing +V power to the switches, while both gear indicator switch and clutch switch connected in series to provide a drivetrain engagement signal to PIN 80 of DME.

    Here is my guess about the operation:

    Base on this signal, the DME knows if the engine is coupled or decoupled to the drivetrain. If there is no such signal, the DME think the engine is idling. When under engine brake condition, the DME incorrectly adjusts fueling (too little), declutch and the drivetrain is decoupled, engine may then stall as there is not enough fuel to keep the engine running.
    Interesting the differences one finds......I have the electrical diagram for M3 1998-AG which includes the SMG wiring, and pin 19 is the output for the secondary air pump (double relay) and pin 80 is the input for the clutch switch ( also referred in the description as Gear Recognition), no mention anywhere for a gear indicator switch.
    Even though pin 80 is on the pinout list, there is no reference to it in the drawings-hence the question, how is it really connected?
    About the only way to find out is to bell out the wiring between pin 80 and the switches and between the switches and ground ( switches being switch plugs for clutch pressure and gear position).
    "engine may then stall as there is not enough fuel to keep the engine running" - I have the vacuum line removed from the regulator, so providing full fuel pressure under high vacuum and it has had no effect, so possibly its affecting the response time of the ICV ?
    Last edited by DusM3; 09-10-2010 at 02:25 AM. Reason: Automerged Doublepost

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