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Classic Auto Air's factory A/C replacement system. Hey it works!

Started by b5blue, March 04, 2016, 07:21:41 AM

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b5blue

  The firewall big egg shaped plate would have had the pipes binding on the pipe holes when mounted over both firewall holes it covers. I was not going to tweak the pipes to cover both firewall holes.
  My compressor mounting kit adapts for a NON A/C engine and if positioned like yours the rear brackets would not install. We must have different compressor mounting set ups. CCA and I talked several times about exactly what water pump housing and pulleys with how many grooves on each.
  When asked why the PDF I linked to here said nothing about compressor mounting CCA (Steve) said compressor mounting varies to each application and it's current setup. (While when new my car was an A/C from factory, it had a 318 not 440 and all I knew was my 440 was of 69 vintage with unknown pulleys/brackets, add to that a bracket set from AR Engineering for a Denso 120amp Alt..)   

will

I have the alternator bracket and 120 amp alt from ar engineering also. My car is a factory a/c, 383 2bbl plain jane. I'm upgrading as I go. 440 very soon. I have an after market, unknown aluminum water pump housing. trw p/s pump. Maybe the housing gives me an extra boss, or the trw pump allows me to mount the a/c compressor closer to the engine. Have you checked hood clearance? Good luck, you'll be happy when the air is cool, cruising down the road with the windows closed.

crj1968

A guy I know is putting the same setup in his Cuda and like yours the firewall plate deal wasn't even close to fitting.   :rotz:

b5blue

Quote from: crj1968 on May 18, 2016, 12:00:57 PM
A guy I know is putting the same setup in his Cuda and like yours the firewall plate deal wasn't even close to fitting.   :rotz:
I used the steel one as a template after hacking it up. Cardboard cut to fit the pipe holes under it and marked gave a template for a 9"X12" sheet of 1/8" aluminum bought off ebay.
 

b5blue

Quote from: will on May 18, 2016, 09:00:46 AM
I have the alternator bracket and 120 amp alt from ar engineering also. My car is a factory a/c, 383 2bbl plain jane. I'm upgrading as I go. 440 very soon. I have an after market, unknown aluminum water pump housing. trw p/s pump. Maybe the housing gives me an extra boss, or the trw pump allows me to mount the a/c compressor closer to the engine. Have you checked hood clearance? Good luck, you'll be happy when the air is cool, cruising down the road with the windows closed.
Now I know what you have. I picked up my unit @ CCA's Tampa store. At first he handed me a plate like you have and when I looked things over it didn't look right. After telling him he ran back in the store and came out with the box of adapter stuff. Lots more goodies including the belt and idler pulley setup. (There was a mixup between TX. and FL.) So I got free shipping and I think that kit I got was over 100.00 extra they didn't charge me for. Real nice guys and only about 25 miles from my house so I've got backup if needed. In the pics it looks high but everything clears, it's all below the stock type air cleaner and the hood closes fine.
  My dual fan for the radiator should be here Thursday so I may be back in the saddle this weekend only needing the system charged. I want to road test everything prior to charging the system.  :2thumbs:

b5blue

  Well things ground to a halt after finding my flex fan would not work with the compressor in the way. The first electric fan set would not clear as it came with a shroud, that had just the edge of one motor ending right where the compressor's belt runs. A week after that I've installed a high volume single 17 inch and been integrating wiring for it with A/C and the rest of my car. (So zero progress on the A/C install.  :eek2:

b5blue

Quote from: will on March 04, 2016, 07:50:43 AM
I have it in my 68. Be careful drilling that hole for the condensate drain. It doesn't really line up right with the template they give you. I did it over the summer, nice cold air. I never hooked up the lights for the controller yet, so i don't know what color they are. They give you the dash vent, you're gonna need a paint pen to chrome it, if that's what you want. The side vents are a little tricky, sometimes the hose pops off, zip-ties are your friend. I like it. Some people like to complain because the original system was so cold, but you'll be comfortable with this setup.
I checked the controller lights and one bulb is missing so I'm skipping that hook up. (I don't think it's needed anyway.) I'm integrating a low speed electric radiator Fan run trigger onto the red supply to A/C relay wire. It will turn on through the Fan low speed relay. I'm kinda wishing a true electrical schematic was included with the instructions.
  I called to clarify heater directions, hot coolant flows from the engine into the A/C heater core then out to controller and back into the engine. So for a B/RB engine the rearmost heater hose nipple is out (to the lower heater tube) and the front nipple is return. (upper tube with control in line.) My drain hole is off just a tad but not an issue.

lukedukem

are you gonna install a cut off valve inline with the coolant for the heater core. I've seen some guys do that to keep the hot engine coolant out of the box to maximize the a/c cooling capabilities. you'd have to open it back up when it gets cold, but they say its worth it. i will dry to dig up a pic of a 68 that has it.

found the pic, the owner of this 68 said it worked, he would valve it in during the summer.  here gets into those triple digits at times.

Luke
1969 Charger XP29F9B226768
1981 CJ7 I6 258ci
2016 F150, 5.0, FX4, CC

b5blue

Hi Luke! "For now no" I'd thought about it but one thing I was sure I wanted was good defrost action. This system will blend heat and cool to give dry air defrost, something I know I need in Fl. from experience. I had a heat only defrost rigged up with aftermarket parts and the car turned into a steam bath! I'll get it all up and running to test out this summer.  :2thumbs:  My connectors should be here in time to test the cooling fan this weekend without the A/C charged. If that's a go it's on to A/C running in short order.

b5blue

  Under hood is near completed. I have installed a mini fuse block that feeds control relays for the engine electric cooling fan and the A/C system to keep those loads out of the bulkhead/dash wiring. My poor engine bay is getting as crowded as a modern cars is. 

garner7555

Looking good!  It's getting hot enough to need it here in Alabama, and I'm sure its even worse in Florida.    :yesnod:     :2thumbs: 
69 Charger 440 resto-mod

b5blue

  Thanks..."Heat Index 99*" this week.  :eek2: Add mosquitoes and no-see-ums trying to eat you alive and you see I'm having big fun. 

b5blue

  Wiring installed, CPU calibrated and door operation checked out. Duct work installed, after looking at how duct attaches to adapters I found coating the adapters with a thick coat of Liquid Tape then sliding on the duct tube and tie wrapping bonds the two nicely when dry after a day of sitting. It appears the duct fits well on the box outlets so that end is just slid over the mounting ports. As the wires are fed through existing holes in the firewall, hole plugs or caps are provided to fill all remaining openings. You pick what ones work best and cut the plastic plugs for the wires.  
 I sealed the plugs centers with "SUGRU" a rubber that handles like Play Dough but drys hard to seal around the wires that run through the plugs. I also used "Mag Daddy" fasteners to hold the wiring where I wanted it after install. Mag Daddy's have a very strong magnet on the base and assorted clips available for holding wires and other stuff. This let me test/move/adjust for wire management to get things out of the way and safe without drilling or using stick on pads for tie wraps. (Both SUGRU and Mag Daddy are highly recommended by me!  :2thumbs: )
 Things I found not quite right:
I mentioned the egg shaped cover plate and how I just made my own.
The adapters for defroster came with foam and clips mounted to the outside. They should have that on the inside of the adapter as it fits over the outside of the defroster vent not inside it. (I just moved the clips to catch on the inside and left the foam.)
There are a few typos in the wiring instructions that state wires should be BLUE in the pics. They are not blue, just follow the general diagrams and disregard what it is marked on the page, it can only go together one way. The instructions show the dash controller wrong in the drawing. (Shows dash-floor-defrost.) The slide on the front for "door operation" is correct as marked on the actual control with dash-defrost-floor. Were the drawing correct you could not ever mix dash and defrost, only floor and defrost, that would suck for my use in Florida with hot rainy days!
I was not clear for me reading directions but coolant flow for the heater routing. Coolant flow out of the engine goes directly to the A/C heater core and the servo is mounted to the output of the heater core then back into the engine. So engine out> to heater> from heater> to valve> to engine return. (On a B/RB with factory water pump housing the front most nipple is return.) The instructions are clear about what tube is in and out for the heater core.
 I called and talked to CAA about all of this so it should be addressed eventually.

b5blue

  Amazon is amazing. Yesterday I called Advance Auto as weeks ago I was told I could "buy and return" an A/C vacuum pump and gauges like how they rent out other tools. They do NOT do that and do not even have pumps in the stores. Crap now what do I do, I'm off work as I've got cramped up back muscles from contorting myself like a bad pretzel for weeks installing A/C and new fan wiring. Checking prices and reviews I found Amazon had same day delivery on a decent pump and a gauge set so before sun set I had them at my door. (For about 170.00) Checked and tested last night, I'm a go for charging today.
 While covering the issues mentioned in my last post with CAA I asked about charging the system. It calls for 1.5lbs (24oz) of R134 but in studying charging online I found you loose 1oz burping the line on each can. With each can 12oz if I just put 2 cans in I'll have about 22oz so 2oz short of 1.5lbs. (?) I'd bought a digital scale to measure and 3 cans of R134 but they said I should be fine just running 2 full cans into the system. (They said they have a greater problem with shops using the large tank and a scale that end up overcharging the system.)
 Checking air flow to the different vents yesterday I was real happy, the SPAL blower moves tons of air quite well and the door interaction between face and defrost has a good control range to vary or mix degree of air flow.

b5blue

 Okay we have A/C!  :yesnod: Low side 23lbs / high side 198lbs outside temp is about 90 with a feel like of 99. Just drove a few miles in my Charger windows up and A/C on. Nice, cool not cold but hey I've no insulation/padding/carpet/door or side panels/pass. or rear seat, not even a trunk divider or drivers side airbox to stop fresh hot air coming in yet still cool inside.
2 12oz cans of R134 filled nicely, took a while as CAA system feeds right before the compressor you must not add liquid, just gas only. Next is more short trip testing over the next week while I start proofing operation and figuring out insulation for under new carpets.  :2thumbs: 

garner7555

69 Charger 440 resto-mod

b5blue

A week of daily use and doing well. A/C cool and engine temps center of gauge. (180*)

AKcharger


b5blue

With carpets "mostly" installed now and A/C doing fine the Charger it turning into an actual "car" again! Staring to work on the seats.  :scratchchin: (PIA!)

rcannon440

Just curious if you happened to check the air temperature coming out of the vents?

b5blue

No not yet...too cool now with temp. in the 70's. Sorting out fan set for radiator cooling has been driving me nuts.