Yep, that 2 white wire/green clip is the tach signal. Note: The tach signal is 5.5V, not 12V like most normal cars. You may need to talk to John Spina @ Caspers for a module to convert this.
HTH,
Tach install ?
I have my 84 T-Type but my factory RPM gauge is very inacurrate. I wanted to buy a Tach, nothing fancy just a simple 4 wire tach (Sunpro). What is a good source of tach signal. I've installed 2 tachs before on 2 other cars but they were carburated. I know that there is a green clip under the hood that is not connected, I've heard this is also a tach signal but not sure. Can anyone give me hits. Thanks.
red - positive
black - ground
white - light
green - tach signal
red - positive
black - ground
white - light
green - tach signal
1 - 8 of 8 Posts
HTH,
Go down a few threads and see where I answered this yesterday...my info was for an ic car but it may apply to hot airs as well?
The thread was titled "Tack"
The thread was titled "Tack"
just hooked my autometer tach up yesterday.works no problem.thanx steve.all i did was ran the tach lead to the green plug.probably the same thing for your 84 
Is there a converter needed to hook up the tach??
OR do you just hook up the tach using the provision behind the alternator...
(i.e.: "A Lick and a Promise")
dunno Confused,
Jim
OR do you just hook up the tach using the provision behind the alternator...
(i.e.: "A Lick and a Promise")
dunno Confused,
Jim
Never heard of a converter. Some of the vdo tachs were looking for a different waveform and needed a mod to them. Don't recall if it was a diode or a resistor...Seems like the little tach would not work straight out of the box.
all i did was run my tach lead to that green plug and that was it.works perfectly
Yep.Steve Wood:
Never heard of a converter. Some of the vdo tachs were looking for a different waveform and needed a mod to them. Don't recall if it was a diode or a resistor...Seems like the little tach would not work straight out of the box.
I got the unit from Caspers for my VDO tach.
1 - 8 of 8 Posts
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