Thread: Disco alternator in a 300tdi Defender

Absolutely. It is a direct feed for a tacho. Basically run a wire from the "w" terminal on the alternator to a tacho. I would recommend a vdo universal tacho with a cylinder selection switch. I did this and replaced the clock in the instrument cluster. Bridge an ignition and earth supply from the guage next to it and your done. Now being an alternator feed tacho it will not be 100% accurate but it will be pretty close (within a few 100 revs). If you do want a dead accurate tacho you will need to purchase an alternator feed tacho. The only one I know of is made by cole hersee but they are super expensive. Personally, I couldn't justify the cost. If you need anything else let me know. Also if you're in Melbourne you are more than welcome to look at my setup.

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Originally Posted by Richo130

Absolutely. It is a direct feed for a tacho. Basically run a wire from the "w" terminal on the alternator to a tacho. I would recommend a vdo universal tacho with a cylinder selection switch. I did this and replaced the clock in the instrument cluster. Bridge an ignition and earth supply from the guage next to it and your done. Now being an alternator feed tacho it will not be 100% accurate but it will be pretty close (within a few 100 revs). If you do want a dead accurate tacho you will need to purchase an alternator feed tacho. The only one I know of is made by cole hersee but they are super expensive. Personally, I couldn't justify the cost. If you need anything else let me know. Also if you're in Melbourne you are more than welcome to look at my setup.

Sent from my GT-I9300 using AULRO mobile app

Cheers for that..... Yes, thought that there maybe a little bit of inaccuracy due to the different size pulleys