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  1. #1
    Join Date
    Jul 2010
    Location
    Chesterfield
    Posts
    242

    Speedo Sensor Mounting

    Hi all,
    Looking for some help in where the best place to mount a sensor for the speedo would be.
    Recently had a speedo drive failure so invested in an electrical one which has the little LCD window for the odometer and trip.
    (my last one never had a trip)
    Just wondered if there was an easy place to mount the sensor on the jag back end, or any other place for that matter.
    I bet somebody will even have pics which would be really helpful as i'm sure i won't be the first to ask this.
    GD mk 3
    Cheers all.
    Ian

  2. #2
    Join Date
    May 2011
    Location
    Flimwell
    Posts
    772
    I (and several others) have mounted the sensor close to the diff input flange bolt heads. Needs to be very close, 1 or 2mm, from the bolt heads. The bolts must be ferrous too.
    Hope that helps.

  3. #3
    Join Date
    Jul 2010
    Location
    Chesterfield
    Posts
    242
    Thanks for that.Was this the bolts on the end of the prop shaft or the drive shaft.
    Thanks

  4. #4
    Join Date
    May 2011
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    Flimwell
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    772
    Has to be the prop shaft bolts. I will try to dig out and post a photo of mine.

  5. #5
    Join Date
    May 2011
    Location
    Flimwell
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    Quote Originally Posted by 1dayiwill View Post
    Has to be the prop shaft bolts. I will try to dig out and post a photo of mine.
    IMG_1019.jpg
    IMG_1014.jpg
    Colin
    Dax Standard Chassis. Ford 302, AOD auto, DB s/s sidepipes, 2017 T reg.

  6. #6
    Join Date
    Jul 2010
    Location
    Chesterfield
    Posts
    242
    That's fantastic.
    A different shape to mine but I'm sure the principals the same.
    Never affected by water etc?

    Thanks for the post.

  7. #7
    Join Date
    May 2011
    Location
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    Not affected by water. It’s completely sealed. Has a small LED light in it which flashes every time a bolt passes.

  8. #8
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,833
    Really neat little sensor, that; did it come with a Speedo or on it's own? If the latter, can you remember where it came from?
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

  9. #9
    Join Date
    May 2011
    Location
    Flimwell
    Posts
    772
    Quote Originally Posted by aaronjb View Post
    Really neat little sensor, that; did it come with a Speedo or on it's own? If the latter, can you remember where it came from?
    I bought all my instruments along with sensors/senders etc from Caerbont ( Smiths) in Wales.
    https://www.caigauge.com/

    Great after sales service and discount for club members.
    This sender is actually designed for use on motorbikes and yes it is very neat.
    I could dig out my paperwork and let people know the part number if anyone wants.

  10. #10
    Join Date
    Feb 2011
    Location
    Northampton
    Age
    41
    Posts
    3,833
    Ooh, I'll give them a bell.. I have a sensor, but it's the usual "barrel style" threaded sensor available from many places, and that one just looks so much neater and appears to come with its own bracket

    Have the gauges already - they came from Digital Speedos, but are Smiths gauges, so the sensor should be ideal. Thanks, Colin!
    My DeDion build diary..
    Hon Sec of the Digidash branch of the Unpopular Kit Car Design club

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