A/C system flush
Instructor
Joined: Jan 2002
Posts: 135
Likes: 5
From: New Braunfels TX
You can purchase a flush gun for around $30 from an AC supplier or possibly on Ebay. Auto supplies sell a liquid that is made for this purpose. It's probably not much different that any other petroleum based cleaner but considering all the work ahead of you, I though it was a good investment.
Racer
Joined: Mar 2005
Posts: 487
Likes: 0
From: Jacksonville FL
if your R-12 has not already leaked out, take it to a shop to have it recovered. some shops will pay you for your recovered R-12. at a minimum, they will recover it for you for free.
after that, you can flush out the system yourself as described above.
hope this helps,
Mike.
after that, you can flush out the system yourself as described above.
hope this helps,
Mike.
Instructor
Joined: Jan 2002
Posts: 135
Likes: 5
From: New Braunfels TX
Yes, if there is any left in the system. Chances are it has leaked out. After the R12 has been recovered, there is only residue left in the system which should be minimal. The purpose of flushing is to remove any oil and trash from the system. R12 uses mineral oil, 134 uses another type and I don't think they are compatible.
Thread Starter
Pro
Joined: Oct 2005
Posts: 581
Likes: 0
From: Boynton Beach Florida
the system is empty,it had 134 in it I,m replacing it with enviro-safe its a replacement for r12 ,and six ounces of it equalls eighteen ounces of R12..you can read about it on es-refridgerants.com,,,the reason for flushing is I want to remove all the oil in the system..
