GTM Blower Motor

<< GTM AC Plenum Relocation                                      Passenger foot well >>

Major System Category: AC & Cooling System
Task: Install AC Blower Motor
Parts: Vintage air Blower Motor
Prerequisite Tasks:
Additional Costs:
Time Requirement: Forever
Date Started: August 10, 2012
Date Completed: August 24, 2012
I didn't work on this task for 2 solid weeks. It is part of the overall Vintage AC installation. The problems I ran into are as follows:

1. I had already completed the passenger side foot well. Bad idea, because I had to take apart most of the foot well to install the evaporator unit.
2. I installed Vraptor's AC Plenum relocation piece, before attaching the hard lines to the evaporator. Another bad idea. I ended up removing this as well. There is absolutely no way to install the hard lines when the evaporator is bolted into place.
3. I decided I wanted the common panel with the evaporator and passenger foot well to be removable. So I developed a rail system to bolt the panel into rather than rivet through the floor pan again. Good idea.
4. I discovered the connector wires from the AC Evaporator to the new location for the AC blower motor were too short. This is because the motor now resides in a more logically place. I spliced in 10 inches into the connectors, drilled a hole through the interior foot well panel and added a wire grommet.  Good idea.
5. I decided I wanted more strength to hold up the AC blower motor, so I reinforced the sheet metal with 1/8 inch aluminum bar. It is a tad tight down there. (i.e. not much room to work).  Good idea.
6. Somewhere along the way, I came across another build site that showed the same AC Blower relocation I was working on. He had a terrific idea to install a 2 inch conduit between the drivers and passenger sides for the ISIS system. I added it to my build. Terrific idea.

Interior foot well panel with 2 inch PVC conduit and wire grommet for  the AC  blower motor hook up. Orientation : Passenger side foot well looking at tunnel wall.

This  a top down view of the 2 inch PVC conduit. AT the top of the photo there are the bolts for the evaporator bracket and the hard lines. At the bottom, is one of the HVAC ducts. Orientation: top of picture toward front.

This photo did not turn out too well. This is the AC blower motor mount. I firmly believe it would have been  challenging to install it off the front of the evaporator unit. I seriously doubt many people would be able to locate the four screw holes. In addition, the blower motor needs to expand into the area above the battery. Orientation: passenger side foot well from cockpit.

The big payoff. The blower motor connected to the mount and the AC plenum relocation piece. This warranted a picture text to my incredibly supportive wife. Orientation: passenger side foot well from cockpit.

All of this took time. The actual installation of the AC blower involves ten screws/bolts. It is a 15 to 20 minute job. If you do this per the original design, then you will have the ac blower, ac accumulator, battery, surge tank, a gaggle of hoses, brakes lines, clutch lines, engine harness and other wiring all competing for the same spot. Good luck.

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