air conditioning question

[mwl1967@xxxx]

Hello everyone,

Im hoping we have an experienced a/c tech here who can offer some 
advice. Things are getting warm here in Phoenix and I'd like to get the air 
working in my 70 300 daily driver. I plan to replace the compressor , 
clutch, dryer and expansion valve and then fill 'er up with R134. 
I'm looking for suggestions on how to best flush out the system ( i 
picked up a small vacuum pump that connects to my compressor ) and also what 
to do about replacing the O-rings. Do they have to be special O-rings or can 
I just get an O-ring assortment and use what fits. What about thread sealant 
for all the connections? 
I want to use the store bought cans of freon and the simple hose 
set-up... is anyone running their old rv2 compressor on R134 with sucess? 
Appreciate any suggestions.... it'll be 115 here soon !

300ly
Mike Laiserin