From: "Terry Rudd" <[EMAIL PROTECTED]> Reply-To: [EMAIL PROTECTED] To: <[EMAIL PROTECTED]> Subject: RE: Datsun factory tacho Date: Tue, 13 Jul 2004 21:54:25 +1000
Stuey,
Have a look at the back of your tacho and see if it matches what I described
in the big post i.e. factory impulse type - usually two white wires looped
through the back of it is the give away. If it is then wire it in as
directed, it's not that difficult - the post is large to cover all of the
different coloured wires they used - it will work. You can pick up the coil
wire from behind the gauges but I've found on numerous occasions that the
tacho bounces around particularly on the Aussie models with the stock
wiring, so that's why I run the figure 8 wire from as close to the coil as
possible - they run perfectly from that pick up point. I got this tip from
the US 510's as that's how their version of the 510SSS tacho is wired.
regards Terry
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Stuey Roberts Sent: Monday, 12 July 2004 8:54 PM To: [EMAIL PROTECTED] Subject: Re: Datsun factory tacho
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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