After the heater box was done, I decided to tackle the A/C box. I've got a couple of these, so I picked the nicer of the two. This box will definitely need to have some parts ordered, so the sooner I take it all apart, the sooner I'll know what I need. I have talked to the guys at Old Air Products in Ft. Worth, Texas, and they can get me the parts I need. I took lots of pictures during the disassembly to help me when I put it all back together. Actually, the box is pretty simple.
Here's a view from the top. It's pretty ratty looking:
The duct manifold is pretty beat up, but I have a spare:
This is the rear of the box where it penetrates through the firewall:
Here's what I found when I pulled the top off. Dust, dirt, sticks, acorns, stuffing. Bur NO mouse poo! That made me feel good.
I've got some cleaning to do on the evaporator. The problem is that when the evaporator is operating, it sweats and all of that dust and dirt turns to mud and packs the fins, thereby affecting the efficiency of the evaporator. You have to make every attempt to get this as clean as possible:
Here it is all disassembled. I did a quick clean-up of the evap with Pine Sol and water, but it still needs to be cleaned with mag wheel cleaner. The lower half of the box is plastic, so it'll get CLR'd. I trying to figure out what I'm going to do on the outside. I might wet sand it with 2000 grit paper and buff it out. The metal pieces were sandblasted yesterday, and I plan to prime them today. I am going to do a full continuity check on the harness and re-wrap it. I need to get a full list of all the components that need to be replaced and get with Old Air and order them.
I'll be back to post more on this in a few weeks when the parts get here.