Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 5, 2007 7:31:14 GMT -5
When I installed my new harness I had some connectors left over. This is whats hooked up: Ballast, Voltage regulator, Ignition Box, Heater motor, wiper motor, washer pump, temp sending unit, A/C wires tied up. A/C pump, coil, distributor, master cylinder. Whats not hooked up: Seat belt interlock, oil pressure sending unit. The one bulk head connector, there is not a slot for it. They are all taken.      |
|
|
|
Post by Nacho-RT74 on Jun 5, 2007 9:49:05 GMT -5
1st pic, to bulkhead. Is the tranny harness. mine only does have 3 terminals... maybe you have there the green wire to blower  . On my car the A/C wires ( blower and clutch ) are throught firewall with a grommet. Thats why I'm asking you pics of A/C wires and plugs... where are attached, taped and plug. 2nd pic that wire is the oil pressure sender. It does plug a gray one female and plain spade terminal without isolator on engine harness. Is not really plug, is sliding terminal. 3rd pic is NSS plug. runs up to tranny. 4th pic is the ground to starter relay |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 5, 2007 10:23:10 GMT -5
I'm assuming the tranny harness and engine harness at one time were taped together. The tranny plug I thought looked familiar.
My old oil pressure wire was only one wire, gray, that slide sideways on the unit. The one in the picture has two wires going into it and pushes over, I guess a different kind of unit. Should I take one wire off and put the correct end on it and attach to the sending unit?
So for the most part aside from the oil pressure sending unit the extra wires are just extra since my tranny harness is hooked up and connected to the firewall. Second thought, I might as well do it right and take of my tranny harness and attach the new one. That would eliminate an extra harness hanging out there. Nacho, you need pics of the A/C hook ups? I will take them.
Thanks
|
|
|
|
Post by Nacho-RT74 on Jun 5, 2007 11:01:01 GMT -5
tranny harness and engine harnes are completelly separated harnesses. Apparently they are only linked on your setup by the A/C wires ( clutch blue and green blower ). So to you sepparate those harness you need to remove one of both terminals from one of the plugs no matter which one.
The brown traced yellow wire is the starter relay ground AND is splice inside the cab to the interlock system what makes buzz the seatbelt buzzer when you gears the tranny.
How you can get already your tranny hooked up if I can see those plugs THERE unplugged ? maybe you run a different harness and that's the reason you have those extra unhooked plugs ?
About your A/C hook ups... right now I'm supossing how they are, but will be great details of your engine harness and all A/C related to take the definietlly conclusions.
You have the right oil sender unit, just need to find the wire. It must be somewhere around.
The black spliced wire with brown plastic plug ( visible on 1st pic ) is a brake warning light test plug, goes to nowhere.
|
|
|
|
Post by Nacho-RT74 on Jun 5, 2007 11:25:04 GMT -5
EDITING... I'm thinking you have two different setups. the one that you car already had and the one I can guess that is the harness you got from Tom ? hehehe I'm needing/wishing it too.
I have discovered even years are teh same, they were made with difeferent setup along the year.
Why I can say that ? on 71 an 72 since the tranny harness didn't send the NSS ground signal to inside the cab, then the two empty cavities where used to clutch and blower. On engine harness allways was keept one empty cavity to the optional tach.
Since 73 and specially in 74 wires account was increased. 73 that extra NSS ground to inside the cab to the seatbelt buzzer using one of the tranny harness cavities, so then just two cavities just left of all the bulkhead, one on that tranny harness plug and one on engine bay to the optional tach. Then on NON TACH cars they could it be used like the Setup you got from Tom, blue on one cavity and green on another cavity. A friend of mine does have that same setup on his 73.
On 74 was added ANOTHER wire, to the reset button. One yellow coming from interlock unit.This wire was added on the only one empty cavity of engine harness plug, so now we had just ONE empty bulkhead cavity on tranny harness section. Reset button wires are one blue coming from splice inside engine harness located before ballast ( is te same blue line source ), one black what is a ground bolted on one of the wiper motor nuts, and two yellows, one spliced from starter relay and the other one is the added one I'm talking about.
When you got this new wire, and now I'm talking compairing with my setup, then A/C wires were apparently moved outside the bulkhead, with a grommet throught firewall. My car didn't have the interlock setup from factory, but assemblied as USA requirements and setups on some stuff.
Now what I don't know is on 74 when you got Tach if this wire was used on the only empty cavity on tranny harness plug or throught firewall.
There is another 74 wiring I want to learn and is about Canadian setups, since they didn't have the reset button restrictions... I mean, Canadian models weren't restricted to don't start on engine if you didn't have fastened your seatbelt, that is only USA restrictions. That makes the interlock unit is different since they ( USA and Canadian models ) shared the controlled buzzer functions on control unit but not the "safety" complete interlock control unit setup, including reset button.
Both underdash harnesses ( Canadian and USA ) are exactly the same and in fact interlock control unit is interchangeable, just that inside control unit, Canadian ones were modified to let you start the the engine even without fastened seatbelts. What I don't know is if engine Canadian harnesses were made with reset setup since they don't really need it.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 6, 2007 6:29:30 GMT -5
Nacho, thanks for giving Bob an assist on this one.  |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 6, 2007 6:34:17 GMT -5
Did not have time last evening to go under the hood. Right after work I went to the local Outreach and distributed food. I did not forget about you Nacho.
Bob
|
|
|
|
Post by Nacho-RT74 on Jun 6, 2007 8:09:12 GMT -5
Thanks... Is not urgent since I have everything plugged and working, is just I want to compare original setup, even apparently several setups were used along the years even on same year. I'll make a draw with how I made my wiring. eeehm now I saw a 5th pic uploaded on first post. Wasn't there before.... what's that ? another interesting stuff is... if your car is a 74 and you have complete your 74 interlock setup... where the hell runs and plug that blue wire ( compressor clutch ) on bulkhead plugs if THERE IS NO EMPTY CAVITIES on the rest of engine bay harnesses plug ?... the only one empty is already used to the green blower wire on tranny plug...  this is the 74 setup: light harnsess 8 cavities used by ( no order ) -high beams -low beams -washer bottle -parking lights -Horn -main positive source ( fuse link ) -left blinkers -right blinkers Engine harness 8 cavities ( same... no order ) -Blue main power wire... ballast, ECU, regulator, electric choke, alt brush -Brown secondary start... coil, ballast -Black from alt stud -yellow 1... starter relay -yellow 2... reset button -gray oil sender -violet water temp sender -thin gauge black to brakes warning switch Tranny harness plug, 4 cavities: -output to reverse light -input to reverse light -NSS ground spliced from starter relay plug -EMPTY CAVITY ( or alternative use for some extra equipment ) Wiper harness 4 cavities allways full. Just used to that no matter wiper motor kind... blue, red, green and brown wires on MY SETUP and probably is not the only one, the AC wires ( blue and green ) are throught firewal, just above the bulkhead, at a side, with a grommet. I enlarged the grommet hole to pass throught the alt wires upgrade with the newer powerfull alt. stock but more powerfull So you can see JUST ONE CAVITY LEFT on all bulkhead, so... where the hell is compressor clutch on that wiring ? CHECK THIS NEW HARNESS MATCHES WITH YOUR OLD HARNESS... or match with back of bulkhead |
|
|
|
Post by Nacho-RT74 on Jun 6, 2007 8:29:20 GMT -5
Bob... on 3rd pic the oil sender wire is visible... is the gray one at a side of the regulator pigtail.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jun 11, 2007 6:19:12 GMT -5
Well, everything went fine. I only had one wire left over when all was said and done. I had to pop out a small brown wire from the engine bulkhead connector in order to install the 2 yellow wires for the interlock. Everything works so I guess I don't need it. Thanks Nacho for you help. Like I stated in the other post my camera took a dump so I will have to post pics later. Wait until you see what I installed under my hood to replace the insulation. Came out awesome.
Bob
|
|
. On my car the A/C wires ( blower and clutch ) are throught firewall with a grommet. Thats why I'm asking you pics of A/C wires and plugs... where are attached, taped and plug.
