I'm redoing my A/C this weekend - new compressor, expansion valve and receiver/drier. I plan on flushing the whole system and then pulling a vacuum. My problem is that I don't have a "real" vacuum pump. I just have the little metal box from Harbor Freight that you hook your air compressor to in order to pull a vacuum. Noone around here rents a real vacuum pump and NAPA sells them for $380 which I'm not going to spend. Can I pull a vacuum with my HF pump and let it sit for a couple hours? Will that be good enough for removing the moisture?

Here's a link to the HF vacuum pump I'll be using (I have the R-12 version)

http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=92475

Thanks,

Scott

__________________
Scott
1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)