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Pictured is a commercial radiator pressure tester. They are relatively expensive for the DIY home mechanic. But, there are times when it would be very...
When we had one youngster in college, another in high school, and my wife was working we had four cars in the driveway for a while. We had another ch...
My pressure tester works on radiators with a neck and cap on the radiator. I have not used it on closed radiators that are filled through a coolant r...
I selected and bought a dial indicator tire pressure gauge identical to this one. Its outside diameter at the end fits nicely inside a piece of 5/16 ...
Buy a package of tire valve stems. I used a sanding drum to remove the expanded section where the stem attaches to the steel rim. See the yellow lin...
You will need a 5/16 inch plastic tee. (The image is from Google Images.)
When I made my pressure tester I could not find a tee like I needed, so I decided to make my own from 5/16 inch brass hobby tubing. (The photo is fro...
I cut two pieces of brass tubing a bit longer than an inch each. I coped one to fit over the other in a "T." I drilled a small hole in the middle of...
Place the coped end over the small hole and solder the tubes together. Check for any air leaks in your solder joint. I was concerned that my solder ...
Cut or turn a cylinder of wood to fit inside the neck on your radiator. Use epoxy to glue smooth rubber to one side of the cylinder. Drill a hole th...
I used a piece of angle iron as a retainer for clamping the stopper in the radiator's neck. The angle iron is about 3 inches long. Drill a hole as s...
Let your radiator cool before opening it to avoid serious burns and boil overs. Smear some grease on the rubber of the stopper to assist in sealing t...
Insert a valve stem into the end of one of the shorter pieces of fuel line hose and clamp it.
The tire gauge will attach to the other shorter piece of fuel line hose. Clamp with small hose clamps.You have now finished your radiator pressure te...
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