Challenges and Considerations:
* Space: Older trucks might not have the space for a modern AC condenser and evaporator, especially with the 22R's smaller engine bay. You might need to get creative with placement or even modify the firewall.
* Electrical System: The 1985 22R might not have the electrical capacity to handle the AC compressor, especially if you're going for a modern, powerful system. You'll need to assess the electrical system and upgrade it if necessary.
* Compressor and Condenser: Finding a compact AC compressor and condenser to fit within the limited space of the 22R's engine bay can be a challenge.
* Installation: Installing an AC system requires specialized knowledge and tools. You'll need to work with refrigerant lines, vacuum the system, and properly charge it.
Steps for Adding AC:
1. Research and Planning:
* Determine your needs: Decide if you want a basic system or something more powerful.
* Gather information: Find out if there are any aftermarket kits specifically designed for your truck. Check online forums and resources for other 22R owners who have added AC.
* Consult with mechanics: Talk to a reputable AC specialist to get an estimate of costs and discuss potential challenges.
2. Component Selection:
* Compressor: You'll need a compressor that's compatible with the 22R's engine and has enough power to cool the cabin effectively.
* Condenser: Choose a condenser that fits within the available space in the front of the truck.
* Evaporator: The evaporator needs to fit within the dashboard area. It's a good idea to opt for a smaller, more compact unit if possible.
* Refrigerant lines and hoses: You'll need to purchase the correct refrigerant lines and hoses to connect the components.
* Electrical wiring and accessories: You might need new wiring for the compressor and other components, as well as an AC switch, fuse, and relay.
3. Installation:
* Mount the components: Securely mount the compressor, condenser, and evaporator in their designated locations. You might need to make modifications to accommodate them.
* Install the refrigerant lines: Connect the refrigerant lines from the compressor to the condenser and evaporator. Use proper fittings and seals to prevent leaks.
* Connect the electrical system: Wire the compressor and other components to the battery and fuse box.
* Vacuum the system: Before adding refrigerant, it's crucial to evacuate the system to remove any air and moisture.
* Charge the system: Once the system is vacuumed, add the correct amount of refrigerant according to the manufacturer's specifications.
Tips for Success:
* Consider a professional installation: Installing AC is a complex process that requires specialized knowledge and tools. If you're not comfortable with the task, consider hiring a professional AC mechanic.
* Start with a good plan: Gather as much information as possible and carefully plan out your installation.
* Don't be afraid to ask for help: Consult with other 22R owners who have added AC and ask for their advice.
Cost:
The cost of adding AC to your 1985 pickup can vary widely depending on the components you choose, the complexity of the installation, and whether you do the work yourself or hire a professional. Expect to spend anywhere from a few hundred dollars for a basic kit to several thousand dollars for a more sophisticated system and professional installation.
