Brake light operation circuit '64 A100

I have a 64 A100 van, LG 170, 3 on the tree, all stock except that I am completing a wiring harness.

I am down to the last section, wiring up the blinker switch and brake light circuit, and can't figure out the brake portion.

The Ron Francis "Classic Mopar" arness I bought is different in a lot of ways, and it is really got me confused on the brake light circuit.

It told me to hook the orange wire from the fuse panel to the brake light switch(on Master Cylinder), And then hook the purple wire(coiled up in a bag) from the brake light switch to the Blinker switch...

Thing is, I only have one connector on the brake light switch, and my original wiring diagram only shows one wire as well, going directly from the brake switch to the blinker switch...

Anybody have any suggestions?

Thanks

sumptin's wrong there dawg.
Basically ALL Mopar brake circuits are the same back then (60s thru 80s).
You have a constant power input. This means it ALWAYS has power, not just when the ignition is on (switched power).
That will be the fuse block connection.
Next, you have a switch. It's either a pressure operated style that screws into the brake system and pressure connects the 2 terminals (old school, usually pre-67) or a mechanical switch attached to the brake pedal somewhere. IT also connects 2 terminals together when the pedal is moved. One terminal is the power, the other is the signal circuit that has power when the brakes are applied.
Simple and easy.

So, there are NO single contact brake switches for these systems.

The next part is the tough part to follow, but you should be able to follow the instructions and get it done.

The signal circuit goes up to the turn signal switch.
It goes right thru to LR and RR bulbs when the TS switch is off. When he TS switch is moved to one side or the other, the opposite side still goes right thru to the bulb. The other one that is selected goes thru a separate circuit to the flasher, then back to the switch and out to the bulb.

So what you are telling me is there is a missing or broken connector on the brake switch, that is attached to the end of the Master Cylinder? Btw, the switch has the screw detente type of connection(unscrew, insert stripped end, screw back down...), not a Packard 57... Hrmm... Guess it's back up on the jack stands when I get home from work...

The only way a ground (single connection switch) signal would work is for it to trigger a relay. I can't think of a single car that uses a ground switched brake signal... not one.

Yeah, it turns out there was another terminal on the switch after all, but it had been torn off somehow, and the second wire was present in the original harness, but had also been ripped off at the tape. So tomorrow I will pick up a new switch, shouldn't be too hard to find, right?

I picked one up from Carquest on Dallas St in La Mesa.

Found one at carquest for 9 bux. also got a new radiator cap and 180 degree thermostat.

On to my next question. Anybody know where I can source a dipstick tube. I found my dipstick and tube in the back of the van, and the bottom inch or so was broken off. where it goes now has a customized bolt as a plug. the leftover metal has been removed from the hole at least...

I have a 64 A100 van, LG 170, 3 on the tree

Anybody know where I can source a dipstick tube.

What manual trans dipstick are you talking about?

May be you should contact to any professional mechanic!!!

Man and Van london

for the engine, tranny has no dipstick...

https://vintage-vans.forumotion.com/t32711-66-slant-six-dipstick-length

I did a couple searches and couldn't find any new ones. Doesn't mean they aren't out there, I just didn't see them.
So good used is your best bet.

I'd look through the slant six forum, they are the "Go To" source for this stuff.

Other choice is to pour in 5 liters of oil. Start the van for few mins, stop and let it sit for 10 mins on an even surface and use whatever tube for a slant that fits and cut it so that the dipstick top oil level is where it's at that time.

Never did get my Brake lights working, For some reason, there is no power from the new fuse panel. Here is how I temporarily resolved it...

Do I win a prize?

Yea, I'll give ya the awesome trophy for that one. Hey it works!

LMAO - Y'all just might be a Redneck!!! That's quite a combo brake and accelerator! LOL

He got a nother good accellerator pedal yesterday. WHEW! Thank god that parts fixed! Now back to the brake lights lol!

[quote="Dawgboy".On to my next question. Anybody know where I can source a dipstick tube..[/quote]

Ricks Machine shop in Lakeside, off the 67...he'll have one for you.

I used to live in Lakeside, I will have to give them a call. Thanks for the info.