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Thread: disco 1 taco signial wire?

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    disco 1 taco signial wire?

    hi all... ive got a '95 disco v8 in which the motor failed so i replaced with a ls2 6ltr holden donk.
    its been 4 years now since i started and i like to think almost to the point where i can turn the key for the first time. i love the original look so when it comes to gauges id like to keep it stock. hence my question is.... please which wire behind the instrument cluster is the signal wire for the tachometer so i can get it working again?

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    According to RAVE electrical library it should be a white + grey wire.
    The connector is shown to be down in the fuse box access area, lower steering column.
    Arthur.

    '99 D1 300Tdi Auto
    '03 D2 Td5 Auto

  3. #3
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    Homestar is offline Super Moderator & CA manager Gold Subscriber
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    I think the Disco 1 used the same system as the Range Rovers which is alternator driven, not from the coil. The wire to the tacho would connect to the W terminal on the alternator - If your alternator doesn't have one, they can be added pretty easily - I've done a couple now. Biggest thing to check before doing this is that the pulley ratio on the new alternator would need to be the same as the factory unit for it to be accurate.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    Quote Originally Posted by Homestar View Post
    I think the Disco 1 used the same system as the Range Rovers which is alternator driven, not from the coil. The wire to the tacho would connect to the W terminal on the alternator - If your alternator doesn't have one, they can be added pretty easily - I've done a couple now. Biggest thing to check before doing this is that the pulley ratio on the new alternator would need to be the same as the factory unit for it to be accurate.
    The 300tdi's run off the back of the alternator. I have no experience with the V8s
    1996 Disco 1 300TDI manual - Lucille a cantankerous red head! :D
    1997 Disco 1 300TDI Auto - sold

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    Quote Originally Posted by BathurstTom View Post
    The 300tdi's run off the back of the alternator. I have no experience with the V8s
    The V8 Rangies were the same, think they all were back then.
    If you need to contact me please email homestarrunnerau@gmail.com - thanks - Gav.

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    wow... thanks guys ive been fumbling my way through for so long now and in no time at all ive got some really great answers...

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    Quote Originally Posted by Homestar View Post
    I think the Disco 1 used the same system as the Range Rovers which is alternator driven, not from the coil. The wire to the tacho would connect to the W terminal on the alternator - If your alternator doesn't have one, they can be added pretty easily - I've done a couple now. Biggest thing to check before doing this is that the pulley ratio on the new alternator would need to be the same as the factory unit for it to be accurate.
    Yes, they are fed from the "W" terminal on the alternator. Will not work on a pulse from the coil.

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