Evacuating the a/c line.
#12
The evacuation pump and manifold gauges are about $40/each on ebay. You need a very decent compressor to run the evacuator pump. Probably going to need a good 5 hp air compressor. It's very easy to do.
Kurt
Kurt
#13
AC compressor may generate small particles upon failure that can block the orifice. That's why many prefer to change the orifice, too. Since the orifice is in the high pressure line, many prefer to replace the high pressure line as a unit. Once you open up the system, the dryer will start to absorb moisture. So comes a new dryer. But if you open the system and immediately evacuate it, you may be able to keep the dryer.
#14
This is not recommended. Not enough vacuum to remove moisture.
#16
Kurt
#17
I call BS. Done it at least a dozen times with many different cars, and never had a problem. My dad the engineer actually had a system of evacuating the system without a vacuum pump. He would crack open different connections on the system in a sequence with gas going through the system pushing all the air out. I'm not that daring. However, I do contend that if you don't have a really good air compressor, then you're not saving any money over going to a professional.
Kurt
Kurt
#18
I call BS. Done it at least a dozen times with many different cars, and never had a problem. My dad the engineer actually had a system of evacuating the system without a vacuum pump. He would crack open different connections on the system in a sequence with gas going through the system pushing all the air out. I'm not that daring. However, I do contend that if you don't have a really good air compressor, then you're not saving any money over going to a professional.Kurt