quote:

Originally posted by V-Tail:

quote:

Originally posted by ScreamingCockatoo:

Vacuum test

Mechanic and I had an interesting discussion about this. When the vacuum leaks, where do it go?

It's is replaced with atmosphere...

When a vacuum leaks out, the atmosphere is less.

Too much vacuum leaking and we all die.

Many years ago, the Inspection Station pulled the electrical connection off the compressor resulting in the system destroying itself.

It is hard to find an honest inspection station and most of the inspectors have never turned a wrench. One time the inspector said the right rear seal was bad. It still had some grease on the shaft when they assembled it. I had a State Trooper look at it and he said it was fine. Some time later, I noticed a leak on the tire so I assumed the inspector damaged the seal to get even.

Several ways to leak ofcourse, one possiblity is only leaks under operation ( pressure & temperature ). The dye will reveal the location. Dont wait too long, as that stuff gets everywhere.
We can thank the EPA for the BS refrigerant changes in the name of lower global warming potential. Residential systems has already started ( mandated) to the "mildly" flammable refrigerant R454.
Dont read this wrong, as I want industry to be good stewards of the environment, but its obvious that this is more about increasing profits.

Aren't the old refrigerant's more efficient?

quote:

Originally posted by 41:
Aren't the old refrigerant's more efficient?

Yes, very much so.
I have to change the condenser in my Vette to a 134 condenser.
I'm sure the newer ones have even more tubes and surface area.

quote:

Originally posted by sigmonkey:

Or you blew a Seal. (unless you were eating ice-cream while the mechanic was looking it over...)

I see what you did there.