Do we have replaceable stepper motors in our gauge cluster? | FerrariChat

Do we have replaceable stepper motors in our gauge cluster?

Discussion in '360/430' started by RedNeck, Aug 6, 2017.

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  1. RedNeck

    RedNeck F1 World Champ
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    #1 RedNeck, Aug 6, 2017
    My oil pressure gauge is junk. My sender has already been replaced, my needle sits in the middle when the car is turned off, and jumps around..even tapping the gauge will sometimes cause it to jump...I fixed the cluster in my Silverado by taking it out and replacing the stepper motors by soldering in new, upgraded ones. Is a similar fix possible with our cars?
     
  2. RedNeck

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    #2 RedNeck, Aug 7, 2017
    Nobody? Sure I'm not the only one to have a gauge fail..
     
  3. eric355

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    #3 eric355, Aug 7, 2017
    Last edited by a moderator: Sep 7, 2017
    Yes, the stepper motors are replaceable. They are plugged in a 4 pins connector on the PCB (no need for soldering) and maintained by 2 screws.
    On the picture, 4 are there - the "big" white parts - and the tacho motor is removed.
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  4. RedNeck

    RedNeck F1 World Champ
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    #4 RedNeck, Aug 7, 2017
    That is just what I needed, thank you. Happened to have the part numbers and / or source?
     
  5. duskybird

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    #5 duskybird, Aug 7, 2017
    Don't remember what the numbers were but IIRC once you pull the motor there's a part number on it. They are available (pretty sure same as the ones in Fiat and BMW)
     
  6. RedNeck

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    #6 RedNeck, Aug 7, 2017
    Was trying to get the #'s so I could order the part before tearing into it, but that may the last resort..
     
  7. eric355

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    #7 eric355, Aug 8, 2017
    Last edited by a moderator: Sep 7, 2017
  8. RedNeck

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    #8 RedNeck, Aug 9, 2017
    So I've found info and sources for PM25S-048 motors, yet none of them has the attached headers or the -JGA7 (or J6A7) extension, which I'm assuming designates connector type. If you have a few, eric, I may take you up on that offer.
     
  9. eric355

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    #9 eric355, Aug 11, 2017
    PM sent ...
     
  10. LorenzoR

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    #10 LorenzoR, Aug 11, 2017
    Can you tell us what info and where did you source them. It would be good for everyone to know this,,Thanks
     
  11. RedNeck

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    #11 RedNeck, Aug 13, 2017
    There are several electronics outfits that sell different configurations of the motor, but not these particular ones. May try some brokers.
     
  12. RedNeck

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    #12 RedNeck, Aug 14, 2017
    Just an update, I have an email into NMB to find out what the part # syntax means. It's possible that these are the standard PM25S-048 motors widely available for $20 with a generic 4 pos header, but the extension doesn't look like a date code to me. Here are the datasheets:

    http://www.nmbtc.com/content/pdfs/PM25S-048.pdf
    http://www.farnell.com/datasheets/1686042.pdf?_ga=2.149079542.1127333968.1502708653-862771105.1502184303

    It may just be a matter of finding out the specifications and crossing the new part. Will update.
     
  13. ItalienCar

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    #13 ItalienCar, May 26, 2018
    Any luck with the part numbers... looking at potentially replacing the oil pressure gauge on my car... is this for a 430 or 360?
    Thanks!


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  14. RedNeck

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    #14 RedNeck, May 26, 2018
    360...but unfortunately they emailed me back saying that this was a proprietary motor and unavailable
     
  15. ItalienCar

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    #15 ItalienCar, May 26, 2018
  16. eric355

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    #16 eric355, May 27, 2018
    Still a couple I can sell ...
     
  17. Ferraristapazzo

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    #17 Ferraristapazzo, Aug 16, 2020
    Hallo,
    ich habe 2 Motoren, die steif sind. Haben Sie eine Quelle gefunden, bei der Sie diese kaufen können?

    Grüße aus Deutschland Angelo
     
  18. RedNeck

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    #18 RedNeck, Aug 17, 2020
    Ich konnte keine Quelle finden und kaufte schließlich ein Kombiinstrument für Teile
     
  19. RedNeck

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    #19 RedNeck, Aug 17, 2020
    Since this threads was brought back, I thought I'd update-I ended up buying a perfectly good gauge cluster off ebay for $350. Stripped it down and used the steppers to repair my cluster. Was not a difficult job.
     
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  20. Ferraristapazzo

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    #20 Ferraristapazzo, Aug 18, 2020
    [QUOTE = "RedNeck, post: 147395106, member: 196974"] Da dieser Thread zurückgebracht wurde, dachte ich, ich würde ihn aktualisieren - ich kaufte schließlich ein perfektes Kombiinstrument bei ebay für 350 US-Dollar. Reduzierte es und benutzte die Stepper, um meinen Cluster zu reparieren. War kein schwieriger Job. [/ QUOTE]
    Vielen Dank für Deine Rückmeldung. Werde weiter suchen falls ich was finde :)
     
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  21. fotostars

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    #21 fotostars, Aug 18, 2020

    Did you really find a 360 gauge cluster for $350??


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  22. RedNeck

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    #22 RedNeck, Aug 19, 2020
    Yes, with 21k miles in perfect condition. Bought it on the spot and kept it for parts..
     
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