E-Bodies.org Cuda Challenger Forum

Technical Shop => Interior => Topic started by: Shoooter on February 10, 2017, 12:38:58 PM

Title: Ac heater box rebuild
Post by: Shoooter on February 10, 2017, 12:38:58 PM
Does anyone have pictures of a heater box rebuild on a AC ebody heater box? I can't find my camera I used to take pictures of the disassemble. There are instructions but there not the best. I bought a rebuild kit from Detroit
Title: Re: Ac heater box rebuild
Post by: Cuda Cody on February 10, 2017, 12:47:25 PM
Wish I could hep, but I'm pretty much useless when it comes it AC.   :sorry:
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 10, 2017, 12:51:43 PM
Quote from: Cuda Cody on February 10, 2017, 12:47:25 PM
Wish I could hep, but I'm pretty much useless when it comes it AC.   :sorry:

That's ok you make up for it in other areas
Title: Re: Ac heater box rebuild
Post by: 6bblgt on February 10, 2017, 01:25:24 PM
I rebuilt this one, but I didn't take too many pics - I'll see if I can find more
Title: Re: Ac heater box rebuild
Post by: anlauto on February 10, 2017, 01:59:50 PM
I recently restored two, but I didn't slow down to take pictures... :pullinghair:
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 10, 2017, 02:30:04 PM
Do you remember what clip is used here. I had them bagged and numbered but I'm missing one
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 10, 2017, 02:53:41 PM
I have quite a few pics on this topic if I remember to come back and post them later when I have time.
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 10, 2017, 03:11:56 PM
Thank you @cataclysm80 (http://forum.e-bodies.org/index.php?action=profile;u=127)
Title: Re: Ac heater box rebuild
Post by: fc7cuda on February 11, 2017, 03:10:46 AM
Hopefully someone will post some pics for you, I don't have an a/c E-body at the moment or I would.  But rest assured, once done them your find your camera.   :fingerscrossed:

Good luck.
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 12, 2017, 07:43:10 PM
Any find pictures.  I got a free day coming up and would like to tackle it
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:10:30 AM
OK, let's see what I can scrounge up...

Here's some disassembly pictures of the AC box.

This first one shows the metal strap that holds the box installed with the round end up and the square end down.

You can see some of the cowl insulation there too. The factory glues that stuff on, just like inside the roof.
That insulation is called shoddy pad, and it's available through Detroit Muscle Technologies, along with all the gaskets and stuff to rebuild your AC box.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:13:19 AM
Here it is fresh out of the car. First time out as far as I could tell. (lots of crud inside) you can see where the fiberglass insulation was glued on. My drain is missing a chunk.   (Why is that ALWAYS broke?!)

Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:19:27 AM
This AC box uses the square ended firewall studs, and has screws to hold the two halves together.

Not all AC boxes are that way. Some have pointy firewall studs, and some use big spring clips to hold the halves together.
Of the ones that use spring clips, some are marked like the boxes with screws, and some have a completely smooth lip.
It's just changes that were made to the box as production progressed.  Any of them will work in any car, it's just a matter of how date correct you want to be.
Maybe I'll go into this more in depth later if anyone is interested.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:20:58 AM
Blower motor resistor. Take it out and have a look. As long as the wire isn't corroded or broken anywhere, it's just fine. Usually there's nothing wrong with them.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:22:16 AM
It's hard to see, but there's a spring here that helps this door to function. This is a common problem area on the boxes I've seen. The spring could be missing, or bent, or the box is damaged around the spring hole so that it doesn't function properly.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:23:55 AM
Now for some pics of the vacuum pods & hoses. The hoses are color coded, here's where they should go.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:25:00 AM
Here's how this vacuum pod is supposed to go...
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:34:07 AM
Here's how this door is supposed to go inside the box. Wouldn't want to put it on backwards, that wouldn't work right.
(multiple pics of the same thing)

It's important to note that in order to avoid extreme difficulty, it's easiest by far to install the AC or heater box before the Dash, and install the Dash before the windshield.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:49:27 AM
The blower motor seal is shaped to clip onto the blower motor.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:52:46 AM
Here's a restored box
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:54:09 AM
More pics of the restored box
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 03:56:56 AM
Make sure to test your vacuum pods.
The diaphragm inside is usually alright, but sometimes the shaft seal dries up and leaks air.  There's some kind of seal conditioner you can put on it which is supposed to help it seal again.  (sorry, I don't remember what the seal condition is called.)
Title: Re: Ac heater box rebuild
Post by: Cuda Cody on February 13, 2017, 08:36:12 AM
 :worship:   :unbelievable:  :worship:  @cataclysm80 (http://forum.e-bodies.org/index.php?action=profile;u=127)  you did an amazing job!!!!  You should really think about doing that full time.  Really top notch work.   :clapping:
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 13, 2017, 09:20:10 AM
Wow thank you thank you thank you!!! This is what I needed. How did you get the metal piece so clean? Did you paint the box or black plastic pieces?
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 10:26:49 AM
Quote from: Cuda Cody on February 13, 2017, 08:36:12 AM
:worship:   :unbelievable:  :worship:  @cataclysm80 (http://forum.e-bodies.org/index.php?action=profile;u=127)  you did an amazing job!!!!  You should really think about doing that full time.  Really top notch work.   :clapping:


The unrestored box is all mine, but I can't take credit for that restored box.  It was done by Jules, and I saved the pictures for reference.  Jules passed away many years ago now.  He did amazing work.
Title: Re: Ac heater box rebuild
Post by: Cuda Cody on February 13, 2017, 10:31:05 AM
I still have one of the Wiper Motors he did for me.  Haven't been able to bring myself to use it yet.  It sits on display in his honor.  He is missed by many people in the hobby.   :(  thank you for saving those photos and sharing them now.  It helps keep his memory alive!   :clapping:

Quote from: cataclysm80 on February 13, 2017, 10:26:49 AM
Quote from: Cuda Cody on February 13, 2017, 08:36:12 AM
:worship:   :unbelievable:  :worship:  @cataclysm80 (http://forum.e-bodies.org/index.php?action=profile;u=127)  you did an amazing job!!!!  You should really think about doing that full time.  Really top notch work.   :clapping:


The unrestored box is all mine, but I can't take credit for that restored box.  It was done by Jules, and I saved the pictures for reference.  Jules passed away many years ago now.  He did amazing work.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 10:31:47 AM
Quote from: Shoooter on February 13, 2017, 09:20:10 AM
Wow thank you thank you thank you!!! This is what I needed. How did you get the metal piece so clean? Did you paint the box or black plastic pieces?

Here are some restoration notes from Jules, who did that box.  All of the metal pieces were removed and replated.  He used Detroit Muscle Technologies for gaskets.

"New evaporators are not available. Fixing the old one is the only way.
Rivets are available from Spaenaur Fasteners 1-800-265-8772. You will also need the tool to install them.

The exterior casing is washed thoroughly then I bead blast it with MIL-13 glass bead.
This is a very fine glass bead that does not damage the surface. I then apply a thin coat
of satin clear. It freshens it back to life. When I get a box that has damage , I painstaking
try to graft another piece from a donor box back on. If the original broken piece is still there,
I can glue it back on, sand away carefully and then blend the colors with some graphite grey finish."
Title: Re: Ac heater box rebuild
Post by: Car-nutt on February 13, 2017, 10:46:12 AM
Great pictures! Do you know if anyone is reproducing the correct vacuum hoses?
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 12:07:54 PM
I've seen them listed in restoration distributor catalogs in years past, so someone made/makes them, but I've no idea what the quality is like. 
My originals were fine, so I just cleaned them up.
Title: Re: Ac heater box rebuild
Post by: jetmech on February 13, 2017, 04:44:21 PM
Quote from: Car-nutt on February 13, 2017, 10:46:12 AM
Great pictures! Do you know if anyone is reproducing the correct vacuum hoses?

@Car-nutt (http://forum.e-bodies.org/index.php?action=profile;u=86)   Check out this link, I haven't bought from them but found the site when looking for AC parts for my car.   http://www.oldairproducts.com/catalog/vacuum-parts/23-0905/vacuum-p-2670.html?Make=Plymouth&Model=Barracuda&Year=1970
Title: Re: Ac heater box rebuild
Post by: screamindriver on February 13, 2017, 05:04:33 PM
Nice thread !! Great pics and Thanks for the link to the striped vacuum hoses I never seem to fine them when I'm looking...I grab some at the boneyard from different models when I think about it...
   I have a small table top glass bead cabinet I have some super fine media in...I seal up the pods then LIGHTLY blast the pods using low pressure...Even great care will still blast them too much if you get carried away...
Title: Re: Ac heater box rebuild
Post by: anlauto on February 13, 2017, 05:37:40 PM
Quote from: jetmech on February 13, 2017, 04:44:21 PM
Quote from: Car-nutt on February 13, 2017, 10:46:12 AM
Great pictures! Do you know if anyone is reproducing the correct vacuum hoses?

@Car-nutt (http://forum.e-bodies.org/index.php?action=profile;u=86)   Check out this link, I haven't bought from them but found the site when looking for AC parts for my car.   http://www.oldairproducts.com/catalog/vacuum-parts/23-0905/vacuum-p-2670.html?Make=Plymouth&Model=Barracuda&Year=1970

That's pretty cool.... :ohyeah:
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 06:40:01 PM
It's neat that those color coded hoses are available, but the reason I didn't take pictures of the control switch end of the hoses is that the factory hoses have a molded on connector end that doesn't allow you to plug them in wrong.

If you're trying to make a new hose set with those, it won't have the connector like factory, and you'll need to know which port on the switch to plug each hose on.

I suppose you could use them to patch a damaged factory hose set.

Title: Re: Ac heater box rebuild
Post by: jetmech on February 13, 2017, 08:37:21 PM
Quote from: cataclysm80 on February 13, 2017, 06:40:01 PM
It's neat that those color coded hoses are available, but the reason I didn't take pictures of the control switch end of the hoses is that the factory hoses have a molded on connector end that doesn't allow you to plug them in wrong.

If you're trying to make a new hose set with those, it won't have the connector like factory, and you'll need to know which port on the switch to plug each hose on.

I suppose you could use them to patch a damaged factory hose set.

I believe they also sell the socket adapter for the vacuum hoses. I didn't see the locking clip to secure it to the switch set though. @cataclysm80 (http://forum.e-bodies.org/index.php?action=profile;u=127) Do you think the one in the link below is what you mentioned what @Car-nutt (http://forum.e-bodies.org/index.php?action=profile;u=86) would need?
http://www.oldairproducts.com/catalog/switches/23-0624/vacuum-socket-p-12370.html?Make=Plymouth&Model=Barracuda&Year=1970
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 13, 2017, 10:23:53 PM
Difficult to tell with their watermark over the image like that.
It might work.
It looks like they have a pretty good parts selection.  I bet if you called them and asked, they would know or could check.
Title: Re: Ac heater box rebuild
Post by: anlauto on February 14, 2017, 05:22:59 AM
I was thinking more of vacuum lines under the hood of a 73-74 with all that pollution crap. I restored a 73 years ago and had to buy an air grabber hose kit to get the colour keyed hoses.
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 15, 2017, 01:58:13 PM
I have my original AC heater core and the foam strip goes on the bottom. With the new one the tab is different ( I checked 2 of them ) and they say just to put it on the bottom of the heater core. I will have to shorten the foam piece. Does this sound right?
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 15, 2017, 11:47:56 PM
I don't recall, but I think the idea is to seal around the heater core so that air goes THROUGH it, not AROUND it.

Test fit it into the box to see if it looks like it would seal well.

I do remember that my replacement heater core had fitment issues from the flat plate being attached crooked when it was made, and I had to trim one edge of that plate or something for a good fit.
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 16, 2017, 09:42:39 PM
Two heater cores and both don't fit. Hopefully the last two in Canada fit better. They soldered the tube bracket too high and it won't sit in there nice. The flat part doesn't fit well either. I might have to move the bracket to get it to fit.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 16, 2017, 10:22:13 PM
I had to take the new heater core for my 70 Roadrunner to the local radiator shop and have them make some adjustments.
Title: Ac heater box rebuild
Post by: bc3j on February 20, 2017, 02:43:19 PM
Everything on this site is great. The pictures are timely for me. I'm going through some ducting on my '70 and found a cracked duct from the ac box.  However it doesn't look like the one in post #21. It appears to attach differently than mine. The swing door has 26995511 stamped on the swing door. Is that duct available anywhere? I'm trying to workout an answer to the cracked area.
(https://uploads.tapatalk-cdn.com/20170220/dc657986642ad9eacb1d353cc6f214d9.jpg)(https://uploads.tapatalk-cdn.com/20170220/b65617eb7e4e0dfe031d6f59d6f1e99c.jpg)
Title: Re: Ac heater box rebuild
Post by: headejm on February 20, 2017, 03:10:56 PM
@bc3j (https://forum.e-bodies.org/mlist/bc3j_75) You have the correct part for. 1970 AC system. Besides the crack, you are also missing a section. Here is my duct.
Title: Re: Ac heater box rebuild
Post by: bc3j on February 20, 2017, 03:50:38 PM
Thanks headejm. Do you have the same number on the swing door as I do?
Title: Re: Ac heater box rebuild
Post by: headejm on February 20, 2017, 08:07:08 PM
Yes, same p/n as you listed.  :ohyeah:
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on February 20, 2017, 10:21:58 PM
Quote from: headejm on February 20, 2017, 03:10:56 PM
@bc3j (https://forum.e-bodies.org/mlist/bc3j_75) You have the correct part for. 1970 AC system.

1970 only?  Did the part change in later years?
I think I've only seen one version.
Title: Re: Ac heater box rebuild
Post by: headejm on February 20, 2017, 11:49:21 PM
Sorry to be confusing. I'm not implying 1970 only, just that the referenced part is correct for 1970.
Title: Re: Ac heater box rebuild
Post by: Timbbuc2 on February 21, 2017, 08:24:21 AM
Quote from: cataclysm80 on February 15, 2017, 11:47:56 PM
I don't recall, but I think the idea is to seal around the heater core so that air goes THROUGH it, not AROUND it.

Test fit it into the box to see if it looks like it would seal well.

I do remember that my replacement heater core had fitment issues from the flat plate being attached crooked when it was made, and I had to trim one edge of that plate or something for a good fit.
I had the same problem with my heater core, one lip did not fit flush, so I had to tweak it alittle
Title: Re: Ac heater box rebuild
Post by: Shoooter on February 21, 2017, 02:17:54 PM
My 71 has the same part number on the swing piece.  It also has 3441849 then 82261 2 on the main part
Title: Re: Ac heater box rebuild
Post by: Shoooter on October 17, 2017, 01:21:28 PM
what style nut goes on the studs that are on the A.C. box that hold the blower motor?
Title: Re: Ac heater box rebuild
Post by: JH27N0B on October 17, 2017, 05:24:05 PM
 Just reading through this interesting thread.  I'm having my Challenger convertible's AC system restored.  One thing I noticed in the thread that needs updating.  Tav shared some of the late Jules notes, including one where he says new evaporators aren't available so you must have your original rebuilt.  I bought a new one from Classic Auto Air this summer.  It wasn't cheap though, iirc $299. Thought I'd pass that on.
Title: Re: Ac heater box rebuild
Post by: Dakota on October 17, 2017, 06:07:49 PM
Quote from: Shoooter on October 17, 2017, 01:21:28 PM
what style nut goes on the studs that are on the A.C. box that hold the blower motor?

Photos of the mounting nut for the blower and the special washer that goes underneath it.  These are from a 70 Challenger a/c box.   It doesn't show well in the last picture, but there's a rubber gasket/seal between the blower motor and the box.   This one was cut from a 1/8" sheet of rubber purchased on eBay.   The last picture shows the correct seal, but based on previous posts no one makes replacements.
Title: Re: Ac heater box rebuild
Post by: Dakota on October 17, 2017, 06:14:20 PM
These are pictures of my heater box as it was taken apart.   There are probably some repeats of views already posted but these may fill in a gap or two.
Title: Re: Ac heater box rebuild
Post by: Dakota on October 17, 2017, 06:29:41 PM
A few more...
Title: Re: Ac heater box rebuild
Post by: Dakota on October 17, 2017, 06:42:19 PM
These pictures are after the clean up.   The spray paint shown provides a reasonable match to what I believe the original color.   For the vacuum pods, steel wool was used to brighten them and then they were hit with some clear coat.  Overkill?  Yes, but I was on a roll on at the time.

I'll try to fix the orientation of the pictures shortly.   Never seem to get that right.

Also, the drain tube on this version needs to be shortened about an inch.   It's a repair job gone wild.
Title: Re: Ac heater box rebuild
Post by: Shoooter on October 18, 2017, 09:30:39 PM
that's what I needed.  thank you
Title: Re: Ac heater box rebuild
Post by: Shoooter on October 21, 2017, 04:34:09 PM
I have that rubber gasket between the wheel and the motor. this one came in my rebuild kit. does it replace that rubber one or go between the firewall and the motor?
Title: Re: Ac heater box rebuild
Post by: Dakota on October 21, 2017, 09:04:34 PM
That foam piece seals between the motor flange and the firewall.
Title: Re: Ac heater box rebuild
Post by: Shoooter on October 22, 2017, 09:15:56 AM
Thank you
Title: Re: Ac heater box rebuild
Post by: Shoooter on December 12, 2017, 05:24:27 PM
I installed the heater box and went to install my dash and I realize I don't know where the heater cable hooks up to? anyone have a picture of where it goes on the box? also is the end that hooks up to the controls held in by a plastic clip?
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 12, 2017, 05:49:51 PM
If you are talking about the cable that controls the temperature, it connects to the water valve that bolts to the passenger inner fender in the engine compartment.
Title: Re: Ac heater box rebuild
Post by: Shoooter on December 12, 2017, 09:21:49 PM
yes that is it in sure. any pictures or know what hole it comes out of the firewall in? it doesn't seem like it is long enough to reach the passenger inner fender
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 12, 2017, 09:24:52 PM
Quote from: Shoooter on December 12, 2017, 09:21:49 PM
yes that is it in sure. any pictures or know what hole it comes out of the firewall in? it doesn't seem like it is long enough to reach the passenger inner fender

Check out this thread.

https://forum.e-bodies.org/engine-transmission-and-rear-end/4/70-challenger-heater-control-valve-440-with-ac/4841/msg68322#msg68322
Title: Re: Ac heater box rebuild
Post by: Shoooter on December 12, 2017, 10:30:54 PM
great info on that tread. that's the cable I'm talking about! I still can't see where it comes thought the fire wall though. also does the cable go through the mount that the steering coloum is mounted to or below?
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 12, 2017, 10:45:03 PM
There is a drain tube right under the blower motor and if memory serves me correctly, there is a spot where the cable comes through the firewall. On later years I think it was moved to exit out the driver side and run on the outer firewall and then to the water valve. Unable to locate pictures at the moment but will keep looking.   :cheers:
Title: Re: Ac heater box rebuild
Post by: Shoooter on December 13, 2017, 08:20:30 PM
found this. looks like it goes on the drivers side of the steering coloum.  the cable didn't look long enough to reach the passenger side. would there be a grommet in the firewall?
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 13, 2017, 08:40:48 PM
If you are working on a 71-74 the cable is routed through the firewall on the driver side as in your picture above and the one below. however, if a 70 it comes through the firewall next to the blower motor. Still looking for a pictures for the 70 application.

Title: Re: Ac heater box rebuild
Post by: Shoooter on December 13, 2017, 09:26:43 PM
it's a 71 cuda I'm building. I wounder why the two pictures have different holes. maybe there from different years.
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 13, 2017, 09:35:02 PM
Most likely a revision from the designers/engineers. Updates were made all the time. The orange firewall is from Moparts and supposedly a 71 Cuda. Maybe a little research will firm up the correct hole for your application.

Here is a quick google search for 71 Challenger firewalls, both cuda and challys pictured.

https://www.google.com/search?rlz=1C1CHWA_enUS600US610&biw=1366&bih=588&tbm=isch&sa=1&ei=egsyWo_QAoLijwOlk7lY&q=1971+dodge+challenger+fire+wall&oq=1971+dodge+challenger+fire+wall&gs_l=psy-ab.12...281426.282267.0.284814.2.2.0.0.0.0.209.396.0j1j1.2.0....0...1c.1.64.psy-ab..0.0.0....0.ma0-P-_NhsU#imgrc=oPKjTGqXve7VxM:
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 13, 2017, 09:39:03 PM
FYI, The white pictured firewall you have shown above is from a 70 Challenger. :cheers:
Title: Re: Ac heater box rebuild
Post by: Shoooter on December 13, 2017, 09:54:51 PM
that's perfect. I'll check mine tomorrow.  thank you again. I'll be contacting you as I have more A.C. questions and I'm searching for parts as well.


do you think there is a grommet in that small hole?
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 13, 2017, 10:14:53 PM
I am better versed on 70's but will help in anyway I can, even though I have 2 71's with AC. Yes, to the grommet for the cable penetration. I  have seen them, but have no pictures. Without a grommet, it would slide in the bare hole, let in outside air, fumes and other unwanted issues.
Title: Re: Ac heater box rebuild
Post by: 71GranCoupe on December 13, 2017, 10:29:40 PM
As long as this has been brought up here is a picture of 1970 firewall cars with AC. You can see the grommet just to the right of the blower motor and down a few inches. It has 2 passages, one for the vacuum line and one for the temperature cable.

Title: Re: Ac heater box rebuild
Post by: cataclysm80 on January 03, 2018, 05:16:37 PM
The grey primer Challenger firewall pic is my car.
It's a 1970 early built car, and was originally equipped with the cable that passed through the firewall under the blower motor.

The orange firewall is a 1970 'Cuda that belonged to a guy called Snoopy.  I don't think his car originally had air conditioning, he labeled that picture to help other people.

The change to the cable that passed through the firewall by the brake booster is a bit of a mystery.
It happened during 1970 production, but it's not a simple change over on a certain date, both styles are found throughout the production year.

The cable is a different length depending on where it passes through the firewall.
The cable which passed through under the blower motor was longer than the other cable.  This cable has not been available anywhere for many years, so if you need a cable, you'll probably have to use the only style available, which passes through by the brake booster. 

The hole will already be there.
This cable passes through where one of the plastic insulation retainer pins would go.
The new cable will have the rubber grommet already on the cable.  The grommet is rubber and is shaped similar to an insulation retainer pin.

The 1971 and later cars all use the cable that passed through by the brake booster.
Title: Re: Ac heater box rebuild
Post by: cataclysm80 on January 03, 2018, 05:22:34 PM
Regarding why the two pictures have different holes, the only difference is what options each car has.
The Challenger has less holes because it's an automatic transmission.  It also has a cruise control wiring hole.
The 'Cuda is a manual transmission which is a few more holes, and it also has a fog light wiring hole.
Title: Re: Ac heater box rebuild
Post by: CudaHead on June 22, 2018, 10:05:24 AM
http://www.hotrod.com/articles/1971-plymouth-cuda-gets-heater-ac-box-refreshed-restored/ (http://www.hotrod.com/articles/1971-plymouth-cuda-gets-heater-ac-box-refreshed-restored/)
Title: Re: Ac heater box rebuild
Post by: headejm on June 22, 2018, 10:37:51 AM
 :ohyeah: That is an excellent article and video! Thanks for posting it. I have several Hot Rod articles bookmarked.
Title: Re: Ac heater box rebuild
Post by: truckinman466 on February 10, 2019, 01:28:59 PM
What's the best way to test the vacuum pods?
Title: Re: Ac heater box rebuild
Post by: Mrbill426 on June 24, 2020, 12:06:46 PM
Good infromation

:popcorn:
Title: Re: Ac heater box rebuild
Post by: headejm on June 24, 2020, 01:30:52 PM
Quote from: truckinman466 on February 10, 2019, 01:28:59 PM
What's the best way to test the vacuum pods?

Hand held vacuum pump or (seriously) just suck on the attached rubber hose and make sure the lever pulls in and the diaphragm holds a vacuum.  :cheers:
Title: Re: Ac heater box rebuild
Post by: Mrbill426 on July 25, 2020, 05:15:40 PM
Doing mine (72) now but the blower motor that came out of it is black; looks original with a green hot wire.  Are thy supposed to be "silver" in color??

:wrenching:


Quote from: 6bblgt on February 10, 2017, 01:25:24 PM
I rebuilt this one, but I didn't take too many pics - I'll see if I can find more
Title: Re: Ac heater box rebuild
Post by: headejm on July 25, 2020, 10:15:00 PM
 @Burdar (https://forum.e-bodies.org/mlist/burdar_173) is our 1972 expert so hopefully he will chime in. The 1970 blower motor for the AC set-up is not black. They were silver/gray. I believe 1972 would also be silver/gray.
Title: Re: Ac heater box rebuild
Post by: Burdar on July 26, 2020, 05:26:18 AM
@Mrbill426 (https://forum.e-bodies.org/mlist/mrbill426_888)  The motor should have a part# and date code stamped on it.(at least my non A/C motor did)  Look for those #s and post them please. 

The earlier years had silver zinc plated blower motors.  My 73 has a black motor.  I was the first person to take the blower motor off and there was black paint on it inside that was hidden from the elements.  The date code on the motor also corresponds to the build date of the car.  It wouldn't surprise me if the A/C blower motors changed to black as well. Since the A/C motors can be removed easily from the outside, there is a chance that it was changed or painted over the years.  I'd start looking for pictures of other 72+ A/C cars and gather more info.
Title: Re: Ac heater box rebuild
Post by: Mrbill426 on July 26, 2020, 08:11:30 AM
@Burdar (https://forum.e-bodies.org/mlist/burdar_173) thanks I will look for those numbers; hopefully they are embossed because the motor has been painted.



Quote from: Burdar on July 26, 2020, 05:26:18 AM
@Mrbill426 (https://forum.e-bodies.org/mlist/mrbill426_888)  The motor should have a part# and date code stamped on it.(at least my non A/C motor did)  Look for those #s and post them please. 

The earlier years had silver zinc plated blower motors.  My 73 has a black motor.  I was the first person to take the blower motor off and there was black paint on it inside that was hidden from the elements.  The date code on the motor also corresponds to the build date of the car.  It wouldn't surprise me if the A/C blower motors changed to black as well. Since the A/C motors can be removed easily from the outside, there is a chance that it was changed or painted over the years.  I'd start looking for pictures of other 72+ A/C cars and gather more info.
Title: Re: Ac heater box rebuild
Post by: Mrbill426 on July 27, 2020, 01:22:44 AM
@Burdar (https://forum.e-bodies.org/mlist/burdar_173) here is a photo of the motor I took out.



Title: Re: Ac heater box rebuild
Post by: Burdar on July 27, 2020, 05:53:21 AM
I believe 3443 is the date code.  That would be the 344th day of 1973.  I suppose it could also mean 1983 if it's a factory replacement?  Someone more knowledgeable then me can answer that.  Either way, it doesn't look like it's original to a 72.

I'd start doing some research on A/C blower motors and see if you can find evidence that they were black.
Title: Re: Ac heater box rebuild
Post by: Mrbill426 on July 27, 2020, 11:20:50 AM
Most of what I am finding they are black.  A friend has a 70 but it is a non-a/c car and his is shiny bare metal.  Mine has the right color hot wire but it was spliced in so maybe it is a wrecking yard find.
@Burdar (https://forum.e-bodies.org/mlist/burdar_173)  Thanks!



Quote from: Burdar on July 27, 2020, 05:53:21 AM
I believe 3443 is the date code.  That would be the 344th day of 1973.  I suppose it could also mean 1983 if it's a factory replacement?  Someone more knowledgeable then me can answer that.  Either way, it doesn't look like it's original to a 72.

I'd start doing some research on A/C blower motors and see if you can find evidence that they were black.