Mk1_Mark
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| posted on 26/11/08 at 07:14 PM |
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Smiths rev counter wiring
I've got an old skool smiths rev counter that i need to wire in to my zetec with ESC, it's got 3 connections on the rear and it's
not very clear how to wire it in, could someone give me a basic guide.
It also has a small thing come with it, possibily an amplifier or some sort, some pics...
the bottom connector it says goes to contact breaker, the connector on the right has a -ve symbol on it and goes to earth and the top connector has a
+ve on it goes to a battery symbol i think, long and short lines?and then joins the wire coming from the side -ve connection before that joins the
earth.
So i'm taking it to be a swiched live, ground and feed from esc?
this it what came with it
it just says top and an arrow and B on it
Thanks 
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r1_pete
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| posted on 26/11/08 at 07:25 PM |
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I've a similar unit, and am using the tach out from MJLJ in place of the contact breaker connection, other 2 are +ve & -ve.
The other bit you have is an instrument voltage stabiliser, often screwed on the back of the tach but nothing to do with it.
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austin man
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| posted on 26/11/08 at 09:00 PM |
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if your planning tio use the smiths fuel / temp gauge from a Midget, Mini etc you will need the stabiliser as they are reliant on it, it also has to
be fitted level if I recall correctl. I would think that the terminal marked points need to have a direct feed from the coil pack and the other
terminal to earth. The battery symbol is posible for a live ignition feed
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02GF74
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| posted on 27/11/08 at 11:28 AM |
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yes. but dunno what you mean by "feed from esc"?
Tacho is for points type distributor.
The + and - you have sussed, the other contact goes to - connection of coil, the one that is switched by the points.
Other item is voltage stabiliser - gives about 9 V and is for instruments such as temp and fuel guages.
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Mk1_Mark
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| posted on 20/12/08 at 05:26 PM |
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Sorry i should have explained, the ESC is an ignition system found on early mk3 fiestas and mk5 escorts which used a coil pack and ran with a carb.
Basically it uses a vacuum feed from the inlet to advance the ignition and you plug it in connect up 2 wires and it will independantly run a zetec on
carbs
Very simple system, got the rev counter wired up but seems to be reading only half now?
Thanks, Mark
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