How to Make Custom AC Lines With Vintage Air’s Universal AC Hose Kit

Simple and Clean Custom AC Lines You Can Build at Home

By Tommy Lee Byrd – Photography By the Author

If you’ve ever installed an aftermarket air conditioning system on your car, you’ve likely installed refrigerant hoses. We’ve tackled this project on several cars through the years. Some kits come with lengths of hoses and an assortment of fittings, which allows a semi-custom fit of your hoses. Vintage Air leads the way in terms of aftermarket air conditioning systems for old trucks, classic cars, and everything else, and recently came out with the DIY EZ Clip system for enthusiasts to build their own custom refrigerant hoses in the comfort of their own garage. The tools are affordable and the installation process is simple, so we jumped at the opportunity to try out the new EZ Clip Universal Hose kit (PN 547002) on a Chevy project.

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02-Vintage Air E-Z Clip refrigerant hose kit comes with everything plus easy detailed instructions_
The EZ clip AC hose kit comes with all that you will need to make AC hoses for cars plus easy-to-read and follow detailed instructions.

Read More: Vintage Air – How AC Works Whiteboard Video

The car already has a Vintage Air AC system installed and the only item remaining on our to-do list was installing the refrigerant hoses. When the hose kit arrived we were surprised by the small size of the hoses. The typical hoses feature a large outer diameter, but these are much smaller and feature a different texture than the standard refrigerant hoses. Keep in mind that the inner diameter of the hose is still the same, but the Vintage Air EZ Clip Hose clamping system requires a smaller outer diameter. Also in the kit is an assortment of clips, cages, fittings, and O-rings to get us to the finish line of this project.

03-Vintage Air E-Z Clip refrigerant hose kit comes with hoses, fittings, and hardware needed for the conversion
Although most Vintage Air kits come with standard refrigerant hoses and fittings, we wanted to build custom hoses in the comfort of our own garage. The E-Z Clip Universal Hose Kit (PN 547002) comes with the hoses, fittings, and hardware needed for a custom installation.

Read More: How To Install a Vintage Air SureFit In-Dash Kit in an F-100

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We ordered two tools from Vintage Air to complete the job. A hose cutter (PN 420001-VUR) and a special pair of clip connecting pliers (PN 420000-VUR) are all that we need to assemble the hoses. The jaws on the AC hose crimping tool have two different angles. Orienting them one way secures the clip and flipping them over and reversing the orientation will unlock the clip.

04-Start by threading fittings into place for mock-up, straight and 90 degree are available
Although most Vintage Air kits come with standard refrigerant hoses and fittings, we wanted to build custom hoses in the comfort of our own garage. The E-Z Clip Universal Hose Kit (PN 547002) comes with the hoses, fittings, and hardware needed for a custom installation.

Read more: How To Install a Vintage Air Heritage Series AC System

We started by mocking up the hoses and fittings to determine the proper routing and then made our cuts and performed the final assembly. Overall, we spent about an hour fitting, measuring, and assembling the Vintage Air EZ Clip Hose kit. It gave our AC system a custom touch and a sanitary appearance, while also speeding up the installation process. Now, we can fill it with refrigerant and begin enjoying our climate-controlled surroundings. MR

05-After the fittings are hand tight, mock up the refrigerant hoses and mark them for trimming
After the fittings are hand tightened, we can mock up the hoses and mark them for trimming. Notice that the E-Z Clip refrigerant hoses are much smaller than standard refrigerant hoses, but still feature the same inside diameter needed for proper flow.
06-The only tools needed are the Vintage Air EZ-Clip Assembly Tool Hose Cutter 420001 and the Clip Connecting Pliers 420000
These are the only tools needed for the EZ Clip install. First is the EZ Clip Assembly Tool Hose Cutter (PN 420001), which makes easy work of the thick hose material. Next are the special EZ Clip Assembly Tool Clip Connecting Pliers (PN 420000) designed to clamp the clips into place.
07-Mock up the fittings and refrigerant hoses and double-check routing, then trim the hoses
After mocking up the fittings and refrigerant hoses and double-checking the hose routing, we can trim the hoses with the hose cutting tool. There are other cutting tools on the market, but this one gave us a nice square cut, which is very important for proper sealing.
08-Kit includes refrigerant oil to lubricate the fittings and O-rings
The kit comes with a small tube of refrigerant oil, which is used to lubricate the fittings. Notice the two small O-rings that are pre-installed on the nipple. They are made from a different material than the standard green O-rings you’ll use on the fittings.
09-Slide two clips onto refrigerant hose before pushing it on fitting
We like to slide two appropriately sized EZ Clips onto the refrigerant hose before pushing the hose onto the fitting so that we don’t forget. Otherwise, you could damage the clips trying to spread them out to fit.
10-Push the refrigerant hose onto the fitting until it seats against shoulder
Firmly push the hose onto the fitting until it seats against the shoulder. It’s designed to be a tight fit.
11-snap cage into retaining groove cut into the fitting
Now, the supplied cage can be snapped into the retaining groove, which is cut into the fitting. There are different sized cages to coordinate with the various refrigerant hoses and fittings in the kit.
12-Install the clips into recesses in the cage
The clips that we already slid over the hose can now be installed on the cage. Each clip fits into a recess in the cage.
13-Firmly squeeze the special crimping tool pliers until the clip clicks
It’s time to grab the special AC hose crimping tool pliers and firmly squeeze until we feel a positive clicking of the clip. Feel free to index the clips so they’re both facing the same direction.
14-Use included refrigerant oil to lubricate green O-rings in kit for fittings
The refrigerant oil is used to lubricate the provided O-rings with the kit. The green O-rings are available in number 6, 8, and 10 sizes, so choose accordingly and begin final assembly of the custom hoses.
15-Assemble first hose and lubricate O-rings then tighten the fittings to connect the condenser and compressor_
After assembling the first hose and lubricating the O-ring we can tighten the AC hose fittings, which connect to the condenser and compressor.
16-Repeat for the second refrigerant hose, mocking up, trimming, and installing cage and clips to secure fittings
We repeat the process for the second refrigerant hose. First, mocking it up, then trimming it and finally installing the EZ Clip cage and clips to secure the AC hose fittings.
17-With 7_8-inch wrench, tighten A_C fittings, then fill system refrigerant
Using a 7/8-inch wrench, we tighten the AC hose fittings on the compressor after lubricating the O-ring and making sure it is seated properly. With the hoses installed, now all we need to do is have the system filled with refrigerant and begin enjoying our Vintage Air AC.

Source Box
Vintage Air
(800) 862-6658

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