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| claxby Member Since: 30 Sep 2019 Location: le14 Posts: 27  |
How easy is it to swap the speedo sensor ring and housing over on to the cable type ??
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17th May 2020 11:24am |
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| Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 723  
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I am doing this as well. I have read that the thing the cable clamps into is a bit smaller than the do-dar that the speed sensor plugs into, which would seem a bit odd if that was true. 2005 Td5 90 XS
1989 V8 110 CSW |
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17th May 2020 10:29pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478  
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Absolutely not true, the speedo sensor is a straight swap for a cable and vice versa.
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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17th May 2020 10:33pm |
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| Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 723
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That is what I was hoping someone would say, thank you Martin
You just can't trust these 'other' forums sometimes 2005 Td5 90 XS
1989 V8 110 CSW |
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18th May 2020 11:52am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039  
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I am 100% sure it is a straight swap as I build a 1984 90 with a td5 drive train to be road tax free in the Netherlands. When I almost was finished our friendly goverment changed it to 40 years so then I rebuild it again to a 2001 commercial.
Click image to enlarge Identify the parts off the different years.  Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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19th May 2020 8:48am |
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| rallysteve Member Since: 10 Feb 2014 Location: Cumbria Posts: 2196 
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The square drive for the speedo is slightly smaller on vehicles which originally had a 2pin speedo pickup (late discovery 1 V8s and maybe D1 300TDis). We found this out when fitting a TD5 transducer to the discovery transfer box on my V8 project.
Cheers, Steve 02' 110 TD5 Double Cab Rebuild Thread 84' 90 3.9 V8 Caged Pickup Build Thread - Now For Sale Mobile Diesel Heater Build Thread |
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19th May 2020 9:39am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478
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That's down to the speedo drive gear, and you'd typically run a different drive gear in a Defender compared to the Disco anyway due to large tyre circumference on the Defender
1988 90 Td5 NAS soft top
2015 D90 XS SW |
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19th May 2020 10:22am |
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| Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 723
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So while we are the subject, and I need to do this at some point in the not too distant future, what do I need to buy here to adapt the existing LT230 which has been rebuilt by Ashcroft, to a Td5 style speedometer?
Speedo Transducer Click image to enlarge Do I just buy a YBE100530 unit (the green unit, number '1' in the above diagram), and bolt it on and plug it in? Where is the mythical coloured drive gear, inside the LT230? If so, are these changeable without dismantling the transfer box? 2005 Td5 90 XS 1989 V8 110 CSW |
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19th May 2020 11:15am |
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| Mo Murphy Member Since: 01 Jun 2008 Location: Letchworth Garden City, Herts Posts: 2077 
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The speedo drive gear is in the hole that the cable came out of. Remove the cable, remove the top hat thimble from the hole (if it's been in there for many years it will be easier with hand brake back plate removed to improve access, I use a wood chisel to gently pry out the top hat), withdraw plastic drive gear.
One spanner if all comes apart easily, 2 spanners if the top hat is stuck. HTH Mo The Land Rover 90 - Many are called, few are chosen. |
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19th May 2020 11:28am |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6478
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Doesn't require the box pulling apart, it's basically down inside the hole on the rear housing
Click image to enlarge You need the correct coloured drive gear to match your tyres, list here: https://www.defender2.net/forum/topic39592.html?highlight=frc3310 The larger the tyres the fewer the number of teeth needed. 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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19th May 2020 11:32am |
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| Hufflepuff Member Since: 25 Oct 2014 Location: Hampshire Posts: 723
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Thank you gentlemen. I had better wait until I have finalised my tyre choice then, which is currently a tricky decision to make
My heart and my head are currently in a heated disagreement on size. 2005 Td5 90 XS
1989 V8 110 CSW |
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19th May 2020 11:57am |
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| roel Member Since: 08 Aug 2009 Location: Lelystad Posts: 2039
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My phone gives me the correct speed at least that one is accurate if I change between my 235-85's and my 35"Simexes. Roel
1984 90 2.5 na Diesel - RR V8 (1994-2001) 1997 Camel Trophy Discovery 300TDI (2001-2009) 2005 G4 Discovery III 4.4 V8 (2008-2018) It's gone but it still hurts. 2003 90 Td5 (2009-now) |
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19th May 2020 9:36pm |
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