![]() ![]() Then I think that I could find parts for a do it yourself repair by purchasing available control switch's from commercial refrigeration suppliers and using them to repair the OEM special switch. What I need is a complete switch with a broken capillary or it could be a working switch (except then I would not want to destroy it). ![]() I use a tool called a MityVac which you pump to create a vacuum and see if the motors work without relying on the engine. Also you may want to check to be sure all the vacuum actuators work properly. I think it is wise to replace them one at a time and maintain the color coding because there are a lot of them, and it would be easy to mix them up and cause the system to malfunction. While you are in there, I agree that you should replace the vacuum hoses. Carefully pull the temperature probe out of the middle of the evaporator core.ĥ) Now you should be able to gently lift the evaporator out of the box. So don't just unbolt this funky thing and start yanking on it.ġ) Remove the 'accordion' duct on the front of the boxĢ) Remove the A/C door assembly behind the duct (usually covered with a thick tar-like insulation)ģ) Remove the metal top of the box where the two defroster ducts attach (when you removed the dash, be sure to remove the ducts from the box, or they will rip, or perhaps rip the defroster ducts which are attached to the dash.)Ĥ) Now you can see the evaporator assembly. This is a temperature probe, and it is very fragile and very expensive to replace. There is a funky device on the side of the box where the A/C hoses come out which has a thin metal tube which goes from this device inside the box and sticks into the middle of the evaporator core. I'm going to wire brush all these metal parts and give them a fresh coat of black paint, then reapply some new foam to the doors.įor your particular situation, a word of caution. Most of the foam in mine has crumbled off and rests in the bottom of the box. Some of these doors were supposed to be covered with a thin layer of foam. ![]() There are many doors inside the box which control where the air comes out. This weekend I will be cleaning and repairing the broken fiberglass. I've opened the box up and discovered that at some point the heater core was replaced and during the replacement process some of the fiberglass was damaged. I removed the dash and the whole box out of the car. I'm in the process of doing exactly the same thing. There's an expansion valve, electro/vacuum compressor switch, vacuum motors and a half mile of vacuum hose to replace (after 50 years, assume it's leaking somewhere-it will).Įither way you go, start by getting the books mentioned above. The core is not the only thing that should be inspected. Joking aside, you should really consider the dashboard-out method. But, if you like taking puzzles apart and putting them back together again, this will be a lot of "fun", per JIm. Removing the dashboard is a significant project by itself. An alternative is to remove the dashboard entirely, and the guts become much more easily accessed. It strikes me as a good way to go insane, if it's not in fact impossible. ![]() The manual outlines a detailed procedure for removing the plenum with the dash in place. As stated, the evap core is located inside the A/C plenum. Tbird wrote:Welcome to the forum you will find a lot of assistance when need in this group. Most of these items should be available from your favorite Thunderbird supply house orĭirectly from Jim Osborn Reproduction, cost will be about 125.00 plus shipping cost These must be for your year of vehicle as there were many changes made from one VTCI Original Factory Specifications (VTCI Country Store, available to members only) Wiring Diagram Manual (Jim Osborn Reproductions) Thunderbird Shop Manual (used or Jim Osborn Reproductions)īody Trim and Sealant Assembly Manual (Jim Osborn Reproductions)Įlectrical Assembly Manual (Jim Osborn Reproductions) Owners Manual (used or Jim Osborne Reproductions) Would suggest that you obtain the following printed information to help with any work that you are going to undertake these cars are very complex for their time and not easy to locate all the relays and wiring in them. The evaporator core is installed inside the heater box under the dash it will be fun to get at with the dash in place. Welcome to the forum you will find a lot of assistance when need in this group. ![]()
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