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 Post subject: Xr2 engine bay loom help
PostPosted: Wed Jul 19, 2017 10:10 pm 
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Joined: Mon Nov 11, 2013 6:40 pm
Posts: 39
Hello everyone I have a mk2 xr2 1987 and I've just take he wiring loom out and I'm confused abut a few wires on the loom and I don't have a n alternator plug I've checked the Haynes manual and none of the wires match my loom I have a blue thin wireally which goes to the clocks a brown/white wire which goes to the clock and a black/Blue wire which goes to the ignition switch. The only red wire I have in the engine bay side is a thick red one which gets really thin. As the manual says there are two red wires on the alternator plug
I also don't have any of the battery cables or startery loom and can't find any online
If anyone could help us with the wire colours and with the battery and starter loom I'd be very grateful
Kind regard's


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PostPosted: Wed Jul 19, 2017 11:08 pm 
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Joined: Sun Jun 10, 2012 8:40 pm
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Location: South London
Brown and white is for the dash board water temp gauge.
Thin blue is for the battery warning light connects to the alternator.

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PostPosted: Thu Jul 20, 2017 1:10 am 
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Joined: Fri May 23, 2003 11:04 pm
Posts: 22067
Location: Manchester
Pretty much the Alternator part is a separate loom.
It's connection to the main loom being the blue wire mentioned above.

The advantage of not having silly ECU's messing with everything.
Connections are more or less direct to the battery via the starter.

Battery Cables and Alternator.
I can help you out here.
But in the past I've also used MK3 battery cables. They are slightly longer though.
And I've made my own Alternator cables too.

The thick to thin wire is possibly the main loom cable.
Standard looms have a thin black wire that connects direct to the battery.
This is a fuse wire. Often getting replaced with a standard wire.
You can test it by checking if it goes directly back to the fuse box and where it connects. IIRC, it's a common rail and connects a number of the fuses together.

Hope that helps.

Jason.

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PostPosted: Thu Jul 20, 2017 5:39 pm 
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Joined: Mon Nov 11, 2013 6:40 pm
Posts: 39
Cheers guys this makes a lot of sense now and Jason I'll pm you about the alternator and battery loom


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