I suggest you pull an evaporator from a newer Mercedes & see if there is a difference.
Thanks, Tom Hargrave www.kegkits.com 256-656-1924 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Kaleb C. Striplin, work Sent: Saturday, July 14, 2007 11:05 AM To: Mercedes Discussion List Subject: Re: [MBZ] 124, R12 v R134 This I know. What I want to know is why the 124's with factory 134 blow ice cold, and the epc shows the same part number. Are they bigger but have the same part number? --- Kaleb C. Striplin Cox Auto Trader 730 PP Supervisor ----- Original Message ----- From: "Tom Hargrave" <[EMAIL PROTECTED]> To: "'Mercedes Discussion List'" <mercedes@okiebenz.com> Sent: Saturday, July 14, 2007 10:55 AM Subject: Re: [MBZ] 124, R12 v R134 > Kaleb, > > R134a has about 20% less thermal mass than R12 and R134a moves 20% less > heat. All of the auto manufacturers made up the difference by upsizing the > units. > > R12 sized evaporators are about 20% too small for R134a. The factory R134c > systems have evaporators that are sized correctly for R134a. > > There is no "magic bullet" fix for this issue but you can help some by > under > charging the system & forcing the evaporator to run colder than it > normally > would. But this causes icing. > > Thanks, > Tom Hargrave > www.kegkits.com > 256-656-1924 > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Kaleb C. Striplin, work > Sent: Saturday, July 14, 2007 9:41 AM > To: Mercedes Discussion List > Subject: Re: [MBZ] 124, R12 v R134 > > really, I hadnt thought of that actually. In the past, I have used the > kit > and just removed the R12 (well, there was usually nothign in the system) > and > > recharged with the 134 in the conversion kit. Never had a problem and it > usually worked pretty good, but not as good as freeze you out factory 134. > Next time I do a conversion Im thinking I should change out the drier, > maybe > > pull the compressor and drain the oil out of that, switch the expansion > valve then recharge etc. Anything else? > > --- > Kaleb C. Striplin > Cox Auto Trader > 730 PP Supervisor > > ----- Original Message ----- > From: "Jim Cathey" <[EMAIL PROTECTED]> > To: "Mercedes Discussion List" <mercedes@okiebenz.com> > Sent: Saturday, July 14, 2007 9:32 AM > Subject: Re: [MBZ] 124, R12 v R134 > > >>> any idea why the factory got 134 to cool great in a 124 but if you >>> convert it after the fact it does not? >> >> Too much oil? (As in the old R12 oil is not fully removed.) >> Just a guess. >> >> -- Jim >> >> >> _______________________________________ >> http://www.okiebenz.com >> For new parts see official list sponsor: http://www.buymbparts.com/ >> For used parts email [EMAIL PROTECTED] >> >> To Unsubscribe or change delivery options go to: >> http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > _______________________________________ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
