I've just bought a series 2a with a 3.5 v8 engine the electrics look a mess! Where do I start? Is there any manuals etc that will help? There looks like there are plenty of wires that don't do anything so I'm thinking that starting from scratch would be best? Any ideas would be most welcome!
It originally had a diesel unit in it so I'm assuming the 3.5v8 it's got now is a different set up? There's plenty of wires with connectors to extend them which don't look good! Wires just hanging not connected to anything so I'm thinking of starting from scratch so that its nice and tidy!
Rattlegun
Well-Known Member
That's not a bad idea, especially as it would have originally been dynamo/control box and would now be alternator. Any original stuff left would probably be rotten and brittle too. Autosparks probably have something off the shelf if you tell them what you've got. A v8 and 2.25 petrol have similar connections so could see if they've got a 2a alternator ready loom maybe.
Dr_evil
Banned
Photobucket the pics then copy over the IMG codes to your reply
Erm, well if its just carbs and its going to the engine I presume the left over cables would be to the glowplugs.
Should look like this on a V8 as basic wiring
For EFI you'll have a couple more live wires for the ECU, your accessory pin should have stuff like lights and radio IIRC (I've got a different diagram for mine) and then your fuel pump is on pin one which is a constant switched live
This is the one for mine as its EFI
Erm, well if its just carbs and its going to the engine I presume the left over cables would be to the glowplugs.
Should look like this on a V8 as basic wiring
For EFI you'll have a couple more live wires for the ECU, your accessory pin should have stuff like lights and radio IIRC (I've got a different diagram for mine) and then your fuel pump is on pin one which is a constant switched live
This is the one for mine as its EFI
mrchurchill109
Active Member
+1 on the 2.25 alternator-modified harness for a IIA. Toook my 109 from a Diesel to a petrol engine long ago and that was part of the job - replacing the harness which was very, very tired. The wiring for a V8 is not dissimilar especially if non-EFI.
Any added devices can then be fitted onto the stock harness, and done neatly.
One thing I recommend to anyone doing things like this is to print a large format copy of the schematic and sketch in the additions you make to the wiring - this will make your life so much easier a few years from now when the accessory blows a fuse and you have to go into diagnostic mode.
An old harness is just not worth fighting with - it is way too infested with Lucas gremlins. OEM smoke for recharging it is just too damn expensive.
ajr
Any added devices can then be fitted onto the stock harness, and done neatly.
One thing I recommend to anyone doing things like this is to print a large format copy of the schematic and sketch in the additions you make to the wiring - this will make your life so much easier a few years from now when the accessory blows a fuse and you have to go into diagnostic mode.
An old harness is just not worth fighting with - it is way too infested with Lucas gremlins. OEM smoke for recharging it is just too damn expensive.
ajr
Rattlegun
Well-Known Member
There you are, it's probably best to call them as the correct harness for your year / chassis number wouldn't be alternator type, which I'm guessing you'd probably want to have and not a dynamo and control box:
Wiring Harness Set <br>4-Cyl 1962 - on, Autosparks, World leading supplier of classic car wiring looms
Edit: I see you can spec alternator as an option lower down !
Wiring Harness Set <br>4-Cyl 1962 - on, Autosparks, World leading supplier of classic car wiring looms
Edit: I see you can spec alternator as an option lower down !
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Dr_evil
Banned
I'd start by tracing the wires in the engine bay to the end of what they're at
You're on carbs so you should just need a simple set up like the pic I posted, anything excess leading to the engine isn't needed. If you're on electronic dizzy then you'll have one extra wire from the dizzy to the +ve on the coil but that should be it
For the rest of the things the wiring should be fairly basic
http://www.land-rover-lightweight.co.uk/Images/Electrical/Rover 1 Diagram.jpg
You're on carbs so you should just need a simple set up like the pic I posted, anything excess leading to the engine isn't needed. If you're on electronic dizzy then you'll have one extra wire from the dizzy to the +ve on the coil but that should be it
For the rest of the things the wiring should be fairly basic
http://www.land-rover-lightweight.co.uk/Images/Electrical/Rover 1 Diagram.jpg
I'm going tho trace the wires and mark them this weekend then try and make a wiring diagram of what I've got! Where do u get your wires from and what do u get for a regular re wire? I'm thinking of using some split plastic conduit to keep it tidy instead of buying a off the shelf wiring harness what do u think? Thanks for the help so far!
Steve_R1979
Active Member
I don't know mine just came in red and brown swiped from selafield
You live near sleafield???
That explains a hell of a lot.
