base model landcruiser tacho

Submitted: Thursday, May 06, 2004 at 10:00
ThreadID: 12649 Views:2733 Replies:3 FollowUps:4
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I have a 1995 base model diesel cruiser which does not have a tacho. To fit a genuine GXL dash and tacho is not that difficult but I also need the GXL fuel pump which is not an option. I have heard that I can fit an electronic tacho and wire it to the alternator. It sounds dodgey and no one on the northside of Brisbane seems interested in helping me. Can anyone out there shed some light on how I can fit a tacho to the ol' girl. Thanks
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Reply By: Hoffy - Thursday, May 06, 2004 at 10:22

Thursday, May 06, 2004 at 10:22
I went through this exercise several years ago. I picked up the star point on the alternator but I had to fit 2 resistors from memory to reduce the voltage to the tacho. It works perfectly and is reliable. Give me your email address and I'll send you the information if I can still find it. I have since sold the vehicle.
Keith
AnswerID: 57450

Follow Up By: Derek - Thursday, May 06, 2004 at 20:38

Thursday, May 06, 2004 at 20:38
Hi Keith. Thanks for the reply. When I was swinging spanners Isuzu were using (as a servicing tool) a hand held tacho where a pick-up was clamped onto #1 injection pipe and sensed the pulse in the pipe as the fuel passed through. It then sent a signal to the strobe which then flashed and worked just like a traditional petrol engine timing light. It would also give you the RPM at the flick of a switch.
My email address is jarrett@powerup.com.au and I'm keen to have any info you may have.
Thanks, Derek.
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Reply By: ross - Thursday, May 06, 2004 at 16:56

Thursday, May 06, 2004 at 16:56
Ive heard of other types that detect a pulse in the spark plug leads and convert it into rpm.I think a sensor clips onto a lead and power to the tacho comes from the fuse box.
AnswerID: 57495

Follow Up By: Member - Jeff M (WA) - Thursday, May 06, 2004 at 17:15

Thursday, May 06, 2004 at 17:15
Ross, no good on the 1hz! Diesel's don't have spark plugs! :->
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Follow Up By: ross - Friday, May 07, 2004 at 08:42

Friday, May 07, 2004 at 08:42
Oops . Oh well there is a handheld pulse type for servicing diesels that clips onto an injector line and senses the fuel pulse and gives rpm in a digital readout on an lcd screen.
Maybe someone sells a permanent set up based on the same principle.
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FollowupID: 319361

Reply By: Member - DOZER- Thursday, May 06, 2004 at 19:03

Thursday, May 06, 2004 at 19:03
Hi Some std's have the hall effect sensor in the pump, have a look at a Gxl and see if you have thesame wiring eminating from the rear of the pump.
Otherwise, yopu can have one fitted to the alt
Andrew
AnswerID: 57520

Follow Up By: Derek - Thursday, May 06, 2004 at 20:31

Thursday, May 06, 2004 at 20:31
Thanks for your reply Andrew. My pump does not have the sensor. It does however have a flat section cast onto the outside of the pump body (in the same spot where GXL sensor would go) to facilitate drilling and tapping should it be destined for a GXL.
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FollowupID: 319287

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