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  1. Clelan

    Are 73 and 74 heat/ac controls the same?

    74 Plymouth Duster with AC. Will the Heat AC controls be the same as the 73 manual shows? My 74 isn't blowing any heat. Cley
  2. Clelan

    What temperature rise should i expect when i turn the AC on?

    74 Plymouth Duster with Factory AC stuff inside and 86ish Dodge truck components undrrhood. Only other thing worthy of note is a nice big aftermarket cross flow condensor infront of the factory 26" rad recored to 3 core. When driving around with the AC off, it warms to 165 on my good Autometer...
  3. Clelan

    Getting hot on the highway with the AC on.

    The patient, 74 Duster Stock 78 318 with a tiny cam and a 670 Holley on a performer 318/360 intake. Stock ignition, timing is 20 initial and 32 total. A-500 OD auto and 4.10 gears. 2500rpm @ 70 mph. Stock 26" rad that got recored to a 3 core about 3000 miles ago. It's nice and clean! Underhood...
  4. Clelan

    Would my dual snorkel scoop be affecting my cooling at highway speed?

    74 Duster 360/A-500/3.23 gear Stock Ignition 670 Holley Vac secondary carb Cheap headers and dual 2.5" exhaust Factory AC with 26" rad (recored to 3 core), factory shroud, 5 blade clutch fan from a mid 80s Dodge truck (1" off the rad) External trans cooler Timing set by vacuum gauge cause the...
  5. Clelan

    Budget underhood AC retrofit.

    My 74 Duster has Factory AC, but when I bought the car in pieces, there were no underhood parts included. I decided to install what I believe to be better, more readily available parts underhood as an upgrade to the system. I used a compressor, brackets and the suction and discharge hoses...
  6. Clelan

    AC underhood component upgrade.

    I just picked up the underhood AC components from an 85 Dodge pick up and am going to install them in my 74 Duster. The car has all the in cab components from factory but when I bought it no underhood parts were there. The condenser from the truck looks like it will fit in front of the stock...
  7. Clelan

    Which fan do I need?

    I have a 74 Duster, V8 with Factory AC. I have the original 26" radiator, and I recently found a nice original fan shroud. The hole in the shroud is 21 and 1/2" across. Now, What do I need for a fan? What would have been on it originally? I want to use a clutch fan. I bought it disassembled so...
  8. Clelan

    89 Ram underhood AC components on my 74 Duster.

    I have access to all the under hood AC components from an 89 Dodge regular cab pick up that I am considering using under the hood of my 74 Duster factory A/C car. Does anyone have any thoughts on doing this. I don't have it yet so I haven't looked at the fit of the condenser, but I think that...
  9. Clelan

    Transition from heat/ac box to vents.

    74 Duster with factory ac. I never took it apart, the P.O. did. I just went to bolt the vents under the dash and there is a space between the box and vents. About 1/2" at the top and maybe 2" at the bottom. The fsm is really no help. On other models it looks like maybe a foam piece in here...
  10. Clelan

    Fresh air vents in an AC car.

    This is all referencing 74 Dusters. My original car that is now a parts car is a non AC car. I stripped it out and am now assembling the car I purchased that was disassembled which is an AC car. I am installing the factory AC underdash components. I went to put in the fresh air vent on the...
  11. Clelan

    Heater box repair

    I had a hole in my heat/AC box. I cut a patch from a busted up box I had and now I don't know what to use to glue it in. 2 part epoxy or fiberglass from the back side. Has anyone done this? Cley
  12. Clelan

    74 Duster AC - Factory or dealer add on?

    I'm wondering what exactly I have. I bought a Duster disassembled and it had air conditioning. The problem is I don't know if I have factory AC or dealer installed AC. Can anyone tell from this picture of the under dash vents? I can see where this bolts up below the dash in the AC car. I have...
  13. Clelan

    A/C box rebuild

    I need someone to restore my Heat/A/C box in my 74 Duster. It is a factory AC car. I intend to use a modern underhood kit to replace all those underhood parts. The parts came disassembled in a box (Unfortunately not a heater box) so i don't know for sure if all the parts are even there. There...
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