Mk2 Escort wiring issues

[Ramo]

Hi. I'm restoring my 2.0ltr Mk2 Auto and all my labels have faded! Im particularly interested in the wiring that goes to the starter motor and also the alternator. I need the colours and connection types. Some are obvious so are not. The manual I have, have completely different colour codes!
Thanks in advance

[russellw]

There are (unfortunately) two different sets of colour codes for pre 6/77 and post that date models. Let us know which you have and I'll see what I have.

Cheers
Russ

[Ramo]

Thanks for that Russ. The build date on the plates is 09/77 4 door auto. It also looks like they fitted a relay in the engine bay for the auto only, and would like to replace it for a new one as the old ones is in poor condition. I need to know what amp rating it is its only got 4 pins, so I'm assuming its a single pole single throw?

[russellw]

If you take the relay out it should give you some details on rating but yes, it should be single pole, single throw.

I've got the earlier manual unfortunately but I can still probably help with the alternator wiring as they were pretty standard across a lot of models based on whether they are made by Denso, Mitsubishi or Fema.

Can probably help with starter too if you can tell me whether it is 3 or 4 wire connection.

Cheers
Russ

[Ramo]

Thanks Russ.
Problem is the relay is a metal one and so corroded I can't see any ratings. The starter motor has one M8 size bolt and 2 male spade connectors. The M8 bolt has the main thick red lead from the battery, but I think theres another smaller red wire too. I know the bottom spade connecter is the black wire and I think the top spade connector has two wires on one spade and I think its red and green. Any help would be great.
Cheers

[russellw]

The M8 bolt is correct - it supplies battery feed.

Red/Light Blue wire supplies 12 volts
Red/Light Green wire supplies switched 12 volts

If yours has a ballast resistor wire as well (goes to a ceramic resistor) the Red/Light Green wire goes via it (red only for 78-80 models) to reduce 12V down to 7.5V. The wire goes from the second spade connector on the starter motor then splits out to the fuse block and then to coil.

Cheers
Russ

[Ramo]

Thanks Russ,

Most of what you said is spot on except the Red/light blue(not sure about that wire at the mo, the only Red/light blue seems to be the switched wire for the relay, which then becomes a black wire via a spade connector. I've drawn a little diagram, I'm hoping its correct as it is, so I don't have a fire!

hand drawn wiring.pdf

[russellw]

That looks right from what I can see - looks like some of it has been replaced from the join onwards. Might be a good idea to fit a quick disconnect on the battery and have someone handy when you try it.

Cheers
Russ