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140 Wiring

Wiring, 140

To all I have two questions I am battling with in my reassembly efforts for a left hand drive car.

First a wiring problem: The pair of wires which go from the switch on the master brake cylinder (for brake lights) go from the switch along the left hand wall of the engine compartment through the same hole in the firewall that wires to wiper motor pass.

Could someone confirm what I have stated above is correct? Assuming it is correct, these wires are not long enough to pass from the left side to the right side of the car under the dash and repass through firewall near the fuse box to land on one of the fuse terminals and the other wire on the "direction indicator relay unit". Perhaps there was a change in position of the " direction indicator relay unit" and on later 140's it was under the dash, but on my car it was mounted on the shelf in the engine compartment. If anyone has rewired a car recently and has worked thru this problem, I would appreciate help.

The second problem: This again my be a problem of an early 140, but I cannot get the hot air pipe and, in particular the flared end of the pipe that goes up to the outlet near the windshield, to fit. I have a problem of the windshield wiper cable and outlet and the flared end of heater pipe trying to occupy the same space. If anyone has had same problem again I would appreciate help. This is only a problem on driver's side. - Neville Laing

Neville- The photos of the washer hose routing and a hose sample are in the mail, finally. I have also opened the underside of the dash but haven't disturbed anything. I don't need to work in this area and will hold off until all your questions emerge. I will try to get to your questions this PM or E'en. For my own records, I will waste a couple rolls of film; I always think "how could I ever forget something so obvious?" and then forget by the time reassembly comes 'round.

Anyone else have questions I can answer by disassembling an original 140 MC dhc? - James Warren

Neville, On the 56 DHC that I have worked on: 1. the relay is on the right hand shelf. 2. the brake light wires do come out the wiper motor wire hole. They then pass through a couple of the small Omega clips and then drop straight down to the brake light switch.

When you say "under the dash" do you mean inside the dash structure? Or below it? The brake light wires will go the shortest possible distance to the main harness hole on the other side. That means the wire will pass through the structure. Contact the people who supplied your wiring harness if you still can't get enough length. It hasn't happened to me, but friends have been supplied with too short or missing wires in the past. In each case the harness supplier has made the correction. - Cleo Bay XK120, XK140

James and Cleo, Thanks for info on routing of brake switch wiring. Cleo, I did mean inside the dash structure. I think they have supplied me a short harness. If you have wiring diagrams you would see that I could land the green wire from the brake switch on the "B" terminal on the gas gauge and that would be the same as getting to terminal "A4" on fuse. However I cannot find a similar solution for getting the green and purple wire to terminal 22 on the direction indicator relay unit. Any further suggestion would be appreciated. Neville Laing

If you have any questions or comments send e-mail to: ted@jag-lovers.org
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