c9night

Thanks no just read the about 10 min ago. Guess I will replace those this spring and keep the compressor unplugged.

revhead347

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

paker

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.

paker

This is not recommended. Not enough vacuum to remove moisture.

c9night

The clutch went out on it the I broke the shaft in the pulley. So that is why I am changing it out. The compressor really didn't fail

revhead347

That's good news. The compressor is actually made of this composite stuff that gets everywhere when it comes apart. I still strongly recommend using a cleaner to get as much as you can out of the lines. You can get a replacement removable orrifice tube from Autozone or Advance for about $12. You cut a section out of the factory liquid line, and the new part compression fittings onto the old line. This is nice because you can replace the orifice tube for $4 with this piece in there, instead of dropping around $100 for new liquid line every time. Either way you go, definately change the orrifice tube and dryer. As soon as you open up the system, moisture gets into the dryer.

Kurt

revhead347

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

paker

My apology if I offended your dad. I thought you were telling us to use the venturi type vac pump. Read any AC book. They all say it doesn't draw enough vacuum. Apparently, your dad has a setup that uses a venturi vac along with particular steps of evacuation. I would love to hear from him. I am an engineer myself and deal with car and house AC myself.