928 at last

What's the best way to clean this stuff up? I've found my leak, or at least the general area it's coming from, but there's so much dye in the area, I can't tell where it's originating from.

It looks like it's spraying out from the expansion valve on the rear evaporator, but before I just replace the "O" rings and clean up, I'd like to be sure it's not anything else.....

SeanR

Brake cleaner.

928 at last

Hey Sean,
Any particular brand?
I don't have a respirator, and the stuff is everywhere......
Guess I could always use scuba gear and hope one walks in while I'm at it....

the flyin' scotsman

Rob...........NAPA sells non-flammable brake fluid in Canada........red can IIRC

I buy it by the case.

Imo000

Just because its non flamable, doesn't mean you can breath it in.

Lizard928

Next thing you know you'll be smoking while using it.......

Podguy

This stuff is so toxic that cigarette would be a breath of fresh air.

dr bob

Jst don't in hale and you'll be fine, mr. prezident!

928 at last

There is a drain from the rear evaporator tray to the underside of the car ...Yes?

SeanR

Yup, unless it's clogged. Pour some water in there and check under the car before you do anything else. At least water won't stink up the car.

928 at last

Thanks Sean! (Yet Again).

928 at last

Still cleaning...I now can confirm that neither Simple Green nor Evaporator Cleaner (Boomerang) has any noticeable effect without scubbing and wiping down...crap.
Tomorrow, the brake cleaner.......
Also, I read on a thread recently that the "O" rings should be "lubed" before assembly....can't find the thread either....what is supposed to be used?

djantlive

use a sniffer to find the ac leak. it's more effective than those dyes.

i thought dyes are only visible under black lights

928 at last

Love to use a sniffer, but I don't have one....
Blacklight I've got, and apparently way more dye than I need.

WallyP

I lubricate the O-rings using the same oil that I put in the AC system - mineral for R-12, POE for R-134a retrofits, PAG for a factory R-134a system.