A/C changeover

How do you do that?
I have a hand pump, is that what you use?

 

I have one that you use with the charging manifold. Just hook an air line to it and it pulls a vacuum. It is a venturi type, works on the same principle as a carburetor.

 

I'm not saying it's right what I do. It's better to do so.

 

The lines on my Eagle use a valve you have to turn with a wrench instead of a shrader valve. A guy over at the Eagle forums hooks a hose from the low side to a manifold vacuum port and uses the engine to vacuum the system. I did that and filled with R134a and it works fine as long as it's below 90 degrees. Otherwise it barely cools. However I don't feel so bad because my dad's 06 Suzuki Reno cools about the same. If I had tinted windows and maybe a larger condenser, I think it would help it cool better.

 

Evacuating the system also removes moisture that will create a corrosive brew inside the system and corrode it from the inside out! Also removing the air creating a vacuum will allow more freon to be installed into the system allowing it to run more efficiently. I run my pump for at least 1/2 hour to a full hour, then let it set for another 1/2 hour pump off to check for leaks.


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Horrid mischief would ensue were the law abiding deprived of the use of them " ~ THOMAS PAINE, Political Theorist and Writer