A/C questions
Thread Starter
Le Mans Master
Joined: Oct 2010
Posts: 6,937
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
A/C questions
i have asked some of this before but want to clarify. my 79 has<13k miles, the system over time apparently bled down. i borrowed a friends vacuum pump and vacuumed it out for over an hour. it held with no leak overnight. i ve been told to at least replace the orifice tube and add ester oil.i was told by someone else to also replace the drier,someone else said don't mess with the drier just yet in case something goes wrong. also I'm reasonably sure where the orifice tube is located but has anyone got a picture? any other tips are welcome. also i am going with r12
Last edited by 7t9l82; Nov 14, 2012 at 08:22 AM.
Burning Brakes
Joined: Jan 2006
Posts: 1,019
Likes: 18
From: St. Louis MO
for the A/C stuff i take it to the A/C guy. they still know how to work on them. if yours has gone south they can rebuild it for you. if that car has only 13 thousand miles i would have it rebuilt and keep it all the same...
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
AC systems naturally bleed down over time, the freon molecules can leak right through the walls of even good hoses. It would be exceptional for it to have charge in it after 30 years. Although it's not required, it's a good idea to replace the drier especially since the system is now empty and while you're there, the orifice tube also. Most of the o-ring seals for the hose connections are easy to get to so no harm in replacing them too.
