Matt75
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Tacho Issues
I have been out and about getting the roadie sorted in the escort and have noticed that when I rev the engine out to 4K it just falls back to 0 again even though I'm still accelerating.
Below 4k there are no issues whatsoever.
Was curious as to any thoughts as to why this would happen?
Also if I was was to replace the tach with an after market one what size would fit in place of the original one? 100mm?
Cheers,
Matt
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martymexico
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Re:Tacho Issues
2012/03/25 19:59:15
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Hi Matt, if your after a factory tacho to fit(just fit) look at Celica 1978ish, a Cortina TE/TF 2ltr or like what i done is use a Mini Cooper Tacho, it takes 2x screws to fit and a pulse wire....best part is it reads up to 8k  . Your Escort tacho might have a diode failure, take it to an auto instrument shop or buy another from a wrecked mk2
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Matt75
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Re:Tacho Issues
2012/03/25 20:15:01
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Cheers Mate,
I think I'll hunt around for an RS2000 dash and chuck that in. I think they look really great.
Good idea on the other tachos I like the idea of 8K!
How's the anglebox?
Cheers,
Matt
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martymexico
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Re:Tacho Issues
2012/03/25 20:33:10
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RS dash are over priced, especially for the extra oil gauge ! You might pull 1 from uk for $120 if lucky.. My mk2 has a std Ghia dash with the mini cooper tacho.
The Anglebox is going ok, got the rear arches finally done last week...photos to come in a few days .
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Matt75
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Re:Tacho Issues
2012/03/25 20:45:22
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I hear you about the price. I am also thinking of just making one as well. What size do I need for the tacho? 100mm?
Will keep a look out for the pics.
Cheers
Matt
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Matt75
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Re:Tacho Issues
2013/05/25 16:20:10
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I thought I'd ressurect this thread rather than starting another one.
My tacho has stopped working all together.
Is there a way to jury rig it up to test if it works at all. I have run a wire from the coil into the wiring pins behind the dash but I still get nothing.
Any ideas on what to do or on how to rewire it?
Cheers
Matt
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martymexico
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Re:Tacho Issues
2013/05/25 22:30:21
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Take the tacho out of the RS dash and mount it in the ghia dash , reinstall in car and test the 4k problem, if it's there still you know it's the dash at fault and if not, the tacho is shot . You can butcher a TE Cortina dash for spares
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Matt75
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Re:Tacho Issues
2013/05/25 22:42:26
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Ta, I had an auto elec do some work and now I get nothing at all from the dash.
They did a crap job so I'm loath to go back to have them fix it.
Cheers
Matt
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Matt75
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Re:Tacho Issues
2013/05/26 20:41:21
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Is there a way to wire the tacho in just to test if it works? I am pretty sure my wiring has been f*&ked by the auto elec I went to.
If I just go -ve side of coil to the tacho will that work?
Cheers,
Matt
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martymexico
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Re:Tacho Issues
2013/05/26 21:06:46
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There is 4x wire for tacho in the mk2 neg, +ve, lights, coil +, I think, it's been yonks since I've hacked into the wiring on mine. The owners manual should have a diagram of where wires lead to etc. If your dash isn't working it could be a dud earth to the body. When I installed the Cooper tacho I just used speaker wire direct to coil for testing then wire in properly .
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frogscort
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Re:Tacho Issues
2013/05/26 21:21:06
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i know 5 inch dont fit lol, is a telltale with shift light so will only be mounting shift light in cluster. Tach can go anywhere , push the button later to see what revs it pulled. i dont look at the mantle piece when i am stoking the fire
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Matt75
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Re:Tacho Issues
2013/05/26 21:30:48
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Cheers mate,
Just the tacho doesn't work so am pretty sure the earth is grounded properly. Everything else works fine.
I have tested all the wires in the loom that go to the tach and all work but I not sure on the signal wire. I ran a wire from the -ve side of coil to the plug but still nothing.
Might just drop the dash into a repair joint.
Cheers,
Matt
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RS 2000
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RS 2000
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Re:Tacho Issues
2013/05/26 21:49:43
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Test the 3 above connections to make sure it is tacho that is definately faulty. Test where tacho bolts up to the plastic backing.
Cheers
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Matt75
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Re:Tacho Issues
2013/05/26 21:53:49
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Cheers,
The pic is a little blurry but is it 12v to both points and then coil -ve to the other.
Does it need a ground?
Cheers,
Matt
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