Wiring loom Identification please

farriermatt · Apr 27, 2019

Hi i have just started to finish off the 300tdi into a 1985 110.
It arrived engineless but has had several different engines over time including i believe a 200tdi last time.
I am fitting a 300 out of a defender but have only the loom that was left in the land rover which has been butchered muchly!
So as to avoid fires in the future i have today removed the starter alternator part of the loom at the connector at the bulkhead which is pretty much toast (one of the wires is snapped from the connector), is it possible to still buy these plugs or is there a type of connector people are using that is a better way forward? Also there are 2 wires running from this loom i have't identifed yet! i have worked out the starter/alternator, water temp but the other 2 i haven't yet
Any help with part numbers or advice on updating this loom would be appreciated.

kevstar · Apr 28, 2019

Hi Mate if you can get your hands on a defender Hanes manual it will give you the different wiring diagrams
& looms at the back, its a pita trying to identify a loom, )been there done that

The original motor is a LR 90 4C model, google will be your friend

Btw I have a scrap disco 300tdi if your needing plugs off the loom

callisr · Apr 28, 2019

This puter isn't showing images but I imagine the other 2 wires are for glow plugs and oil pressure....
Actually, there should also be a wire for the stop solenoid on the I.P.
Cant remember the colours of any of them though......tis late!!!!

farriermatt · Apr 28, 2019

kevstar said:
Hi Mate if you can get your hands on a defender Hanes manual it will give you the different wiring diagrams
& looms at the back, its a pita trying to identify a loom, )been there done that
The original motor is a LR 90 4C model, google will be your friend

Btw I have a scrap disco 300tdi if your needing plugs off the loom

Cheers I have been through the various diagrams but its like going back in time there are multiple grafts into the original loom over the years !

farriermatt · Apr 28, 2019

callisr said:
This puter isn't showing images but I imagine the other 2 wires are for glow plugs and oil pressure....
Actually, there should also be a wire for the stop solenoid on the I.P.
Cant remember the colours of any of them though......tis late!!!!

Stop switch an glow plugs I have wired in although not from this particular bit of loom and are ok. Think you might be on the money with oil pressure I'm now trying to work out what guage the wire is!

Ian Maycock · Apr 28, 2019

http://www.expeditionlandrover.info/Lucaswirecode.htm. Try this to identify the wires , although some colours did change through the years also bear in mind that if it’s been hacked about as bad as you say the PO might have used any old wire , hope this helps .

Matty p · Jul 26, 2022

Hi all, I have a sort of related question regarding 300tdi engine wiring. I am tring to fit a discovery 300tdi engine into my defender, the engine came complete with its loom but obviously the connector plugs are different. My question is,has anyone managed to fit a 300tdi disco engine into a defender and wiring it in? Many thanks.

mystery · Jul 27, 2022

Matty p · Jul 30, 2022

Good evening, many thanks for your reply and wiring diagram, I think it will come in very useful. i have actually been attempting to sort it out today,pretty unsuccessfully. It seems i have more wires on the discovery engine loom side. I have attached some pictures so you can see what i mean. I just seem to be going round in circles . Things like grey/white wire from the alternator, where does this connect to? Also egr wires red/blue. The pictures show the plugs that have been removed from the engine loom.
Thanks for any help.

mystery · Jul 31, 2022

Matty p · Jul 31, 2022

Thank you Mystery, I've just landed in tenerife so I cant have a play at the moment! I will check it out next week though. Thanks again

Wiring loom Identification please

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