73 way back machine
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
The shaft on the DUI gear is larger, so the assembly is propriatory.
A stock assembly might work, but I do not own an optical comparitor.
Last edited by Big2Bird; Jul 11, 2020 at 02:26 PM.
Burning Brakes
Joined: Jun 2020
Posts: 881
Likes: 113
so it is; slightly to right. Are all OE slots supposed to be offset? I never had that cool tool.
That .145" must be diagonally from corner-to-corner, right?
I don't recall source, but read the flats in gear are .105" to accept .104" cable flats.
I've only had old, somewhat worn gears, and I've had cables' flats eventually round off & slip.
That .145" must be diagonally from corner-to-corner, right?
I don't recall source, but read the flats in gear are .105" to accept .104" cable flats.
I've only had old, somewhat worn gears, and I've had cables' flats eventually round off & slip.
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
so it is; slightly to right. Are all OE slots supposed to be offset? I never had that cool tool.
That .145" must be diagonally from corner-to-corner, right?
I don't recall source, but read the flats in gear are .105" to accept .104" cable flats.
I've only had old, somewhat worn gears, and I've had cables' flats eventually round off & slip.
That .145" must be diagonally from corner-to-corner, right?
I don't recall source, but read the flats in gear are .105" to accept .104" cable flats.
I've only had old, somewhat worn gears, and I've had cables' flats eventually round off & slip.
Yes
Yes
And yes.
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
Back to work.
Wiring, wiper motor, and HEI is the final lap.
As expected, wiring is jacked.
It has a ballst resistor on the starter shunt wire, and a constant hot tied to coil.
I cannot remember if the older Unilites used current limiting or not.
My favorite is the ignition ground, third picture, simply clamped under the valve cover.
The starter leads look like type SA, silicone asbestos.Not a bad idea really. I fixed my 81 fan switch that way, till I tore that system out and went dual Spals.
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028
I don't recall ever diving into 73 wiring, but this fusable link to hi temp wire connection sure looks factory.
The #12 solenoid wire in purple is also a rare bird.
Last edited by Big2Bird; Jul 14, 2020 at 12:19 PM.
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Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
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Yes sir. Thats the plan.
I recieved the 80 wiper motor. The slimmer design gives enough room. Just need the flat cover coming from CC.
I bet thats why they changed the wiper washer to a 12v pump in the reservoir, to give room for the HEI system.
Thread Starter
Le Mans Master
Joined: Dec 2006
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Well, the book for 73 seems more accurate than the print that is online.
Although usefull, a single line would be far better for redesign.
I did find circuit 105, which is one side of the ammeter.
It is tapped off the starter hot to horn relay with an orange fusable link around the wiper motor. (Pic 3 )
The other ammeter wire should be at the horn relay, circuit 106, which is also the VS at the alternator.
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
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So this is the engine side of the bulkhead connector. Pretty simple.
Alarm, ign, and tan can go away.
If this was a restoration, a new harness would be the ticket. This car is too modified for that.
Thread Starter
Le Mans Master
Joined: Dec 2006
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Well, the forward harness is a kludge of splices and missing fusable links. The horn relay fell off the fender.
I feel sorry for guys that find this crap.
I can see what they did, and its just "make it work, kinda."
Thread Starter
Le Mans Master
Joined: Dec 2006
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I unplugged circuits 52, 976, 141, and the old ignition resistence wire circuit 3. With Vintage air, no alarm, and no smog, they are not needed.
I reinserted the orange blower wire into the ignition spot. Now the old blower wire is my new HEI feed.
The ignition shunt, yellow, to the starter solenoid is now gone.
Melting Slicks
Joined: Apr 2001
Posts: 2,030
Likes: 363
From: Lubbock Texas
Thread Starter
Le Mans Master
Joined: Dec 2006
Posts: 8,837
Likes: 1,028