Ratz!

You also do not flush out the expansion valve.

Remove the dryer, disconnect the compressor, and remove the expansion valve.
Blow out the hoses with WD40 or mineral spirits; I used a compressor. LOTS
of crap and old oil will come out, so dont' wear any good clothes. If at all
possible, blow out in the reverse direction of "flow" when the system is
operational.

I blew out the high pressure line from the compressor, which went to the
condensor (radiator), then back to the dryer (left rear wheel). I caught the
debris in a cut out 1 gal milk jug.

Then blow out the Low pressure line from the expansion valve (disconnected)
to the compressor. Last one is the evaporator (this one is a pain, you have
to drop it down, but you had to do that anyways to replace the expansion
valve). When you assemble, go to Pep Boys or your local FLAPS, and bring the
O-rings there (there's 2 on the dryer, 4 on the expansion valve, and 2 on
the compressor) and match them up. This results in a LOT lower likelyhood of
leaks.

Then evacuate and see that it maintains it's vacuum, so you don't find out
after charging with some expensive refrigerant (wasting $). The compressors
hold oil in them, the 508s hold about 5-7oz, the 709s hold a little more.
Use the oil that's compatible with the refrigerant you will be using, the
rest is cake.

Anyone in Salt Lake can come over for an evac and charge if you do the above
to your system, but you have to buy my little girl a pizza (I'll likely have
some too). :-)

John
Aircooled.Net Inc.

John
Aircooled.Net Inc.