im now very confused, i just read the big post about the +ve side of the coil..... i dont know what to do hahahaha......
From: "mark krawczuk" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> Subject: Re: Datsun factory tacho Date: Mon, 12 Jul 2004 19:57:08 +0930
er um.........dont tachos pick up from neg of coil ./??????
mark k
`YEARS AGO I COULDNT SPELL COMPWUTER PWOGWAMMER, NOW I ARE ONE.....` ----- Original Message ----- From: "Terry Rudd" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Monday, July 12, 2004 7:38 PM Subject: RE: Datsun factory tacho
> Mark,
>
> Here is an old post with instructions to wire up a factory tacho. There
are
> a few different wiring colours for the other than white wires but these
> instructions tell you how to wire it up regardless of the colours and
which
> white wire goes where.
>
> Here is how you wire the impulse inductive pickup type of tacho into a
1600.
> The 2 white wires connect into the positive coil loom wires and the other
2
> wires in the centre of the tacho are for 12v battery power and earth.
Don't
> be tempted to splice into the ignition circuit behind the dash unless you
> can see a pigtail wire that's usually got heaps of insulation tape wrapped
> around it. The impulse wires must be wired into the loom as close to the
> coil as possible but I've found that not all 1600's are wired like this.
> The 1600 SSS wiring loom is different from the Deluxe/GL etc as it caters
> for the coil circuit to have this type of tacho. Some models circa 1971/72
> actually have the wires to the coil already in the loom with a pigtail
> connector that's removable and allows you to simply remove the pigtail
> wire and plug in the white tacho wires.
>
> If you have to add the impulse wires then here are step by step
> instructions.
> You will need some male & female spade connectors and 2 wires long enough
to
> go from the white wires on the tacho when fitted into the dash to the
coil.
> I
> use what's called figure 8 wire for the coil and good quality speaker wire
> will do and if you're lucky one of the wires will have a stripe which is
> useful.
>
> Connecting it up.
> I usually connect up the tacho to check that it's working correctly before
> fitting into the dash - it's easier to trouble shoot that way.
>
> Remove the loom wire from the positive side of the coil. Connect one of
the
> wires of the F8 wire to the positive coil terminal (I use the solid colour
> on speaker wire for positive coil terminal with female spade connector)
and
> connect the other side of the F8 wire (striped with male spade connector)
to
> the positive coil wire in the loom that you just pulled from the coil.
>
> Look at the tacho from the back. The 2 white wires loop through the plate
> vertically. Fit a female spade connector to the bottom wire and a male
spade
> connector to the top wire. The white wire at the bottom goes to the
positive
> side of the coil so connect it to the other end of the F8 wire with solid
> colour. The white wire on top goes to the existing wire in the 1600 loom
> that
> was on the positive terminal of the coil.
>
> Now for the other wires i.e. +12v battery and Earth.
> Look at the back of the tacho again with the white loop wires at the
bottom
> of the tacho.
> You'll see a small circuit board down the hole, one wire will go through
the
> board and disappear and the other wire turns right above the board and
also
> disappears. The wire that goes though the hole in the board is the
Negative
> and therefore the other wire is the Positive.
>
> Some 1600 tacho of this type have two external plug in connectors in the
> housing for lighting. Some 1600 looms have the plug that you can just
> connect into the dash lighting circuit and on the loom side it is a 3 pin
> female connector. The colours loom side to the connector are Green/red,
> Green/black and Black. If your car hasn't got the connector then it's
pretty
> easy to just splice into another light circuit, the green wires on the
tacho
> plugs are positive and the black wire that are joined together are the
> negatives.
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Behalf Of Mark
> Sent: Sunday, 11 July 2004 11:04 PM
> To: [EMAIL PROTECTED]
> Subject: Datsun factory tacho
>
>
> I have a Datsun tacho I'd like to check, which I guess will need +12v,
> gnd and negative signal from coil at a minimum.
> The wires on the back are: white (male), white (f), black and green. I
> thinking black ->gnd, green->12v.
>
> Mark.
>
>
>
>
>
>
>
>
>
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