Thanx keith. I guess that I misunderstood something said earlier about the expansion valve. I thought that I had a compressor leak, but now can't find one. I'll leave things as is for a while. rick --------- "Keith Cooper" <[EMAIL PROTECTED]> writes:
From: "Keith Cooper" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Subject: Re:[Chevelle-List] Keith A/C Date: Fri, 14 Jun 2002 11:24:13 -0400 Rick, I ask the AC board if you could convert an expansion valve system to an orifice tube type and this was his response: "Probably, but I wouldn't unless it's the VIR (Valves In Receiver) type. The expansion valve systems are excellent retrofit candidates" I believe he is saying that the expansion system is a good retrofit to R134. Keith ----- Original Message ----- From: "rick schaefer" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, June 13, 2002 10:18 AM Subject: Re:Re: Re:[Chevelle-List] Keith A/C > Keith > Please send me a copy of the Vacumn instructions. Also what is the cost of the orifice tube conversion? Is it a "bolt-in" replacement for the expansion valve. > > rick > > ---------- "Bob" <[EMAIL PROTECTED]> writes: > > From: "Bob" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Subject: Re: Re:[Chevelle-List] Keith A/C > Date: Thu, 13 Jun 2002 06:47:13 -0400 > > Keith, > I would like a copy of the instructions as I am going to install all new > R34a conversion components from Old Air Products. The pump from Harbor > Freight is a venturi pump, works like a carb. Attach a LARGE capacity > compressor and the venturi effect creates the vacuum. I have one and it > works fine for the few cars I do. > Bob Walton > [EMAIL PROTECTED] > Maryland Chevelle Club > > ----- Original Message ----- > From: "Keith Cooper" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Thursday, June 13, 2002 6:14 AM > Subject: Re: Re:[Chevelle-List] Keith A/C > > > > Rick, > > Thanks!. I think that amount must be right. He told me that I would need > 11 > > oz of oil. He said add to compressor and put the rest in the > condenser,etc. > > So you must be right. On the expansion valve here is what was said: These > > types of valves, although efficient, have some disadvantages over orifice > > tube systems. Like orifice tubes these valves can become clogged with > > debris, but also have small moving parts that may stick and malfunction > due > > to corrosion. > > If anyone wants the vacuum down instructions he gave me, email me or I can > > post it on the list. His instructions were very detail and different from > > how I have vacuum down in the past. I have always put the vacuum unit on > the > > system for about two hours and then charged, but this is not how he > > instructed me. > > ON Harbor Freight Tools site, they have an Air Vacuum Pump which only > sells > > for $10.00. This seems too cheap. Electric units usually sell for > > 150.00-350.00. Here is the page on Harbor: > > http://www.harborfreight.com/cpi/ctaf/Displayitem.taf?itemnumber=3952 > What > > do you guys think?? Is this junk?? What do I need to look for in a vacuum > > unit. I just want one good enough to do my cars only. I am not wanting to > go > > into the a/c business. > > > > ----- Original Message ----- > > From: "rick schaefer" <[EMAIL PROTECTED]> > > To: <[EMAIL PROTECTED]> > > Sent: Thursday, June 13, 2002 1:34 AM > > Subject: Re:[Chevelle-List] Keith A/C > > > > > > > Keith info from a 72 Chevrolet Service Manual: > > > > > > Freon - 3 lbs 12 oz > > > oil - 11 oz > > > > > > These are for 72, but I'm sure 71 is extremely close. > > > > > > BTW - Standard conversion for R134a seems to be 80% of the R12 charge. > > So 60oz * .8 = 48 oz of R134a. > > > rick > > > > > > > > > rick schaefer > > > 72 El camino > > > http://members.home.net/jimmy4/rick1972elky.html > > > ACES #00140 > > > Team Chevelle #00038 > > > > > > > > > ----------------------------------------------------- > > > To Unsubscribe please visit www.chevelles.net/list.html > > > To start a new topic, send mail to: [EMAIL PROTECTED] > > > > > > > > > > > ----------------------------------------------------- > > To Unsubscribe please visit www.chevelles.net/list.html > > To start a new topic, send mail to: [EMAIL PROTECTED] > > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] > > > > rick schaefer > 72 El camino > http://members.home.net/jimmy4/rick1972elky.html > ACES #00140 > Team Chevelle #00038 > > > ----------------------------------------------------- > To Unsubscribe please visit www.chevelles.net/list.html > To start a new topic, send mail to: [EMAIL PROTECTED] ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED] rick schaefer 72 El camino http://members.home.net/jimmy4/rick1972elky.html ACES #00140 Team Chevelle #00038 ----------------------------------------------------- To Unsubscribe please visit www.chevelles.net/list.html To start a new topic, send mail to: [EMAIL PROTECTED]
