Delancy's NEW 76 PIGGY ???

[PabloCruise]

Thanks Chris, I'm actually wanting to use a more modern compressor and condenser setup. I'm not sure if the old compressor is even usable, very hard to turn by hand. I have no harness for the engine bay, so I'm at a loss for what I will need for wiring. I'm also assuming that the a/c control must some how tie into the fan switch that controls the heater. Right now I'm trying to figure out how to, and what to connect this end that is coming off the a/c unit. Sorry for the hijack. I can pm you for more questions.

View attachment 1050033

Or fire up the Ultimate AC Thread again and ask there! Great place for it...

 

[Delancy]

Can't hijack a pirate's ship, mate.

Lemme ping powderpig in the morning and see what info/pics can be derived from BVB.

Edited:

If you have pics of the unit, itself, post them up, please.

Dunno what might be different, but mine was from Oz.

 

[abqcruiser]

Pablo, there's an ultimate a/c thread? I'll have to take a look.

Chris, this is what Paul sent me, I believe it is out of a 79.

https://forum.ih8mud.com/attachments/p2270332-jpg.1038111/

 

[Delancy]

Link no worky, but, as far as I know, the late units are all the same.

Ok, so here's what I had from a while back and what was researched to determine that the '76 AC was a plug and play, from an electrical standpoint, operation.

It has all the info for the entire system, so informative to the point of connecting to 60/62 engine bay components.

https://drive.google.com/file/d/0BwGk8zcL34N4eDhsVVBxRXNzNUE/edit?pli=1

Texting for additional info, now.

 

[abqcruiser]

From the pictures on your link, that is the same unit that I have. I'm trying to make sense of the wiring diagram to see how to connect everything to my 77 harness. It may take some time. The engine bay looks easy enough though. Great source for information. If your electrical guru is making up an a/c harness for yours and wants to make some extra cash, let me know. I would gladly pay for one. Thanks again.

 

[PabloCruise]

Pablo, there's an ultimate a/c thread? I'll have to take a look.

Chris, this is what Paul sent me, I believe it is out of a 79.

https://forum.ih8mud.com/attachments/p2270332-jpg.1038111/

It is here: https://forum.ih8mud.com/threads/the-ultimate-a-c-thread-for-pigs-air-conditioning.356709/

 

[abqcruiser]

Man do I have a lot to learn about a/c! Thanks Pablo.

 

[Delancy]

@abqcruiser

Hadn't forgotten about you.

Robbie's been busy and most of what's happening on pig, BVB has done or doing.

Email reply this morning:

 

[abqcruiser]

Thanks Chris, what year harness do you have? Mine's a 77, so I'm thinking it wasn't set up for the possibility of putting in a/c. I noticed on that pdf file that they referred to the a/c harness as a wiring kit. I checked with SOR on a used one, and they made reference that it was a 2 wire cowl loom. If that is all that is needed then I can make my own. I'm just confused on what is needed on the interior side. I'll look again, maybe it's easier than I first thought.

 

[Delancy]

The pig is a '76 and, as far as I know, all ACs from '75 on were the same.

The AC harness that came with is what they describe on that PDF.

 

[abqcruiser]

Chris, so is that a/c harness pretty simple, 2 or 3 wires, one to the compressor, one to the coil, and possibly one to a sensor, which is installed in line, on one of the refrigerant lines? Speaking of that sensor, or whatever it is, does your refrigerant line have one? None of the diagrams on that pdf show one, and there is nothing showing up on the wiring diagram as well?

 

[Delancy]

Ok, I think I figured out what's going on and the differences between yours and mine, so hoping this will explain.

What I recall, the "kit" harness I have to include and complete.

Pretty simple, right?

At this point, I'm sure BVB has a plan, but keep in mind I'm using a later compressor, condenser, drier/expansion valve.

Ok, so I just noticed sonething on this diagram after many months of studying, and here's what I think it is telling us.

There were factory equipped ACs, THEN there were factory AC "kits".

Check out the legend at the bottom of the page (or right, in this case). See where it shows two different harnesses, kinda described like mine above?

I realize the differences appear minimal, but what I'm thinking is this.

OE equipped vehicles MAY have had a different chassis harnesses and connectors than those that that did not.

You MAY have an OE equipped complete removal where what I have is clearly the "Kit" variation.

What does this mean for you?

I dunno, but we can surely figure out with connector and wire (color) pics that we can get to BVB for his assessment.

Thoights?

 

[Delancy]

This makes perfect sense and explains why this connector has no mate...

And that's because you have an uber rare, factory installed OE AC system, NOT a dealer installed "Kit".

I've posed to the powers that be, but my take is this and based upon your desire to run late model condenser/compressor, that you should remove the portions of the AC harness you have, and replicate the "kit" diagram.....BUT

Let's see what BVB thinks, first.

In looking at the PDF again, I think it's only purpose was for TRs dealer installed kits, because that's the only page Ive seen that shows two harnesses.

 

[abqcruiser]

That all makes sense to me. That pigtail in the photo above is coming from the idling stabilizer amplifier. If I'm reading the wiring diagram correctly:

green wire is to the heater spare terminal
black wire is from the ignition coil
white/black is to the heater blower switch (not sure where exactly to splice it in line)
black/white is to the compressor
black/red is to the horn spare terminal

Maybe you could run it by BVB and see if he agrees. I still have the issue of the in-line sensor on the refrigerant line to deal with as well. Any thoughts on that would be helpful.

thanks, Mark

 

[Delancy]

Mark,

Already sent their way.

 

[LAMBCRUSHER]

nerds

 

[Delancy]

Any suggestions on an ebrake cable?

Knew the OE would be too short, two years ago when beginning this, but, at that time, thought a 4x/6x/7x would be useable.....but none have the handle on the dash.

 

[LAMBCRUSHER]

if you must keep the dash handle, look at a mini truck. You are using the case mounted brake on this rig, right? I think Lokar can custom make cables for you. If I am wrong, and you are using an axle mounted brake, then the minitruck handle and cable should just about bolt right up...

 

[PabloCruise]

I hear the name California Push Pull come up often when people are doing custom parking brake jobs.

At first I thought it was a term I should look up on Urban Dictionary...

 

[Delancy]

It is dash levered, split case e brake.

Probably order to fit and call it good.