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Speedo Grease

Discussion in 'Early CJ5 and CJ6 Tech' started by CJ51973, Feb 9, 2024.

  1. Feb 9, 2024
    CJ51973

    CJ51973 Member

    Versailles, KY
    Joined:
    Nov 6, 2009
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    195
    Going to dig into an old speedometer this weekend. What grease specifically should be used? I figure red and sticky is out. I have seen mention of lithium but not really specific on the type. Thanks
     
  2. Feb 9, 2024
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    I think whale oil was probably OEM specification. At least on the needle pivots. Nowadays that would be a substitute sewing machine oil.

    The worm gears I've seen, the OEM grease was dried out and crusty. It would be good to avoid that. Silicon grease, I wonder???
     
    Ol Fogie likes this.
  3. Feb 9, 2024
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
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    Sewing machine oil.

    Don't use grease.
     
    Ol Fogie likes this.
  4. Feb 9, 2024
    CJ51973

    CJ51973 Member

    Versailles, KY
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    Nov 6, 2009
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    195
    10-4
     
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  5. Feb 9, 2024
    danielbuck

    danielbuck Uncle Buck

    USA
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    Jan 22, 2013
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    for the speedometer cable sheething, I've always used lithium spray.
     
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  6. Feb 9, 2024
    Jw60

    Jw60 Cool school 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Sedalia MO.
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    The issue with grease is that the speedometer needle uses very weak magnetic fields
    to generate a linear curve with rpm. Any grease at the cup will stick to the speedometer needle assembly and spin it right round
    Baby
    Right round
    Like a record

    And break the speedometer needle or spring.
    I used assembly lube on the plastic odometer gears and I wouldn't do that again since it simply oozed out. Just use sewing machine oil on the speedometer head components.
    The cable should use graphite powder if I recall.
    Lithium spray is likely ok but anything thick will destroy the cable. It needs to move smoothly and free or it will twist up like a doughnut, Housing and all.
     
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  7. Feb 10, 2024
    CJ51973

    CJ51973 Member

    Versailles, KY
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    Nov 6, 2009
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    195
    I have it apart, cleaned. The clock spring is not broken. How tight do you preload this when you assemble? I seems it will get tighter the faster you go.
     
  8. Feb 10, 2024
    Keys5a

    Keys5a Sponsor

    Florida Keys
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    Jan 23, 2014
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    4,183
    The actual gears, like those that drive the odometer, need thin grease. I use a small amount of Lubriplate, a thin white lithium grease. For the needle and fragile parts, sewing machine oil sparingly.
    -Donny
     
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  9. Feb 10, 2024
    CJ51973

    CJ51973 Member

    Versailles, KY
    Joined:
    Nov 6, 2009
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    195
    Upon further review the main shaft is broken. The needle is broken too but I thought I might epoxy that. I would guess if anyone has parts this shaft is the first thing to go. I started off thinking I could swap faces (I have a later model installed right now) but I’d chance breaking a working unit for the sake of vanity. Oh well
     
  10. Feb 10, 2024
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Hills of NH
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    I can only imagine the difficulty you'd have re-calibrating after a total rebuild. Even gluing the needle could alter the balance.

    Looking for a good used unit would be my first choice. That said, there are specialists that can re-man and tune pretty much any speedometer.
     
  11. Feb 10, 2024
    kenb

    kenb Cleverly disguised as a responsible adult

    Detroit
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    Jan 22, 2019
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    676
    I have mine in at a repair shop now. I'll report back on the results.
     
  12. Feb 10, 2024
    Andrew Theros

    Andrew Theros Member 2023 Sponsor 2022 Sponsor

    Los Osos, CA
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    I have a nice intermediate speedo I bought from a member here a while back. I was saving it fort when I re wire but I think I will be going with a gps. you can have it for what I spent.
    pm me if interested.
     
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