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Speedo drive gear remove and replace

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Flighter
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2018/11/23 15:10:54 (permalink)
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Speedo drive gear remove and replace

Anybody know how to get to the speedo drive gear in a Type 9 (or even a Type E)? I'd like to see whether I can change it out for one that gives a more accurate reading.
 
Thanks.

WTB: Recaro seat - any condition considered
 
 
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    martymexico
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    Re: Speedo drive gear remove and replace 2018/11/24 21:38:03 (permalink)
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    Not sure where to get one locally but UK shops like Burton performance and Rally Design or Motorsport Tools UK. When I fitted a type 9 to my mk2 I noticed the Speedo was way too fast, doing 60kmh it was reading 75 ! I pulled the gear drive from a 2.0 Cortina and that got it close... In the end I gave up and just moved the needle down to minus 5kmh , so doing 60 to 90 was close but anything higher i was under speeded . The plan was to take the Speedo to get calibrated but never did !
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    NQRS
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    Re: Speedo drive gear remove and replace 2018/11/24 23:12:55 (permalink)
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    the speedo drive gear is held in with a large circlip, the right sort of circlip pliers will remove it.  Try GBH Geartech in the UK, they sell all the parts, seals, bearings etc for gearboxes, Type 9 and 4 speeds.  I'm pretty sure they keep a range of speedo drives- you may have to supply some info about your box, wheel size etc to get the correct one. Len
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    Flighter
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    Re: Speedo drive gear remove and replace 2018/11/26 20:32:57 (permalink)
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    Found the cover - just have to remove it now. Not sure whether removing the cover destroys it in the process, but replacement covers are available at least.

    WTB: Recaro seat - any condition considered
     
     
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    lee_doidge
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    Re: Speedo drive gear remove and replace 2018/11/27 13:08:29 (permalink)
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    I need to do this as well... My speedo is 20km fast at 100km/h. Let us know where you source yours from Flighter.
    Found this exploded diagram which i always find helps before i pull something apart...
     
     
     
     

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    Flighter
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    Re: Speedo drive gear remove and replace 2018/11/27 20:37:08 (permalink)
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    lee_doidge
    I need to do this as well... My speedo is 20km fast at 100km/h. Let us know where you source yours from Flighter.
    Found this exploded diagram which i always find helps before i pull something apart...

    They're available on eBay UK, and also from Burton:
    https://www.burtonpower.com/plug-speedo-gear-retainer-type-e-9-gearboxes-gbt9541.html
    We were out about 20% too, but changed the diff ratio from 3.89 to 3.54 to pick up about 10%. I'm hoping we can make up the rest through a speedo gear change.
     
     

    WTB: Recaro seat - any condition considered
     
     
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