A/C Drier

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Nov 20, 2007 | 06:48 AM

Tschim

Thread Starter

Racer

Joined: Jan 2006

Posts: 251

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From: PA

A/C Drier

I bought an old correct drier for a 67 but is there any way to test it prior to installation? Thanks

Nov 20, 2007 | 07:27 AM

wmf62

Race Director

Joined: Jun 2006

Posts: 17,901

Likes: 751

From: Inverness FL

St. Jude Donor '07

if the inlet and outlet ports of the drier are/were not plugged/tightly sealed; the chances are the drier has absorbed water and is no longer good. if it was sealed, and it isn't physically damaged, then it should be good to use. you will know if it leaks when you pull a vacuum on the system when it is being charged.
Bill

Nov 20, 2007 | 07:53 AM

67L36Driver

Safety Car

Joined: Feb 2003

Posts: 4,068

Likes: 27

From: St. Joseph Mo

Suck out the moisture.

If you keep the system under a vacum long enough, any moisture will be eliminated. Overnite (12 + hours) should do it.

Nov 20, 2007 | 08:03 AM

wmf62

Race Director

Joined: Jun 2006

Posts: 17,901

Likes: 751

From: Inverness FL

St. Jude Donor '07

Quote:

Originally Posted by 67L36Driver

If you keep the system under a vacum long enough, any moisture will be eliminated. Overnite (12 + hours) should do it.

yep, you may get the moisture out; but there is no guarantee that long term exposure to moisture has not damaged the internals of the drier....

Bill

Nov 20, 2007 | 09:39 AM

67vetteal

Melting Slicks

Joined: Aug 2004

Posts: 3,078

Likes: 101

From: Riverhead New York

Once exposed to the Environment the Dessicant inside your Drier will no longer be of serviceable grade. There is a company in Fla. that will refill your correct unit. They do cut it open and re-weld it. Don't short change on a Drier as it is the Defender of your A/C system. Al W.

(Also, here's a good place to learn about A/C. Search word, "Mitch". http://www.autoacforum.com/).

Last edited by 67vetteal; Nov 20, 2007 at 01:48 PM. Reason: Add info.

Nov 20, 2007 | 09:47 AM

62Jeff

Tech Contributor

Joined: May 2005

Posts: 15,576

Likes: 118

From: Conroe Texas

Quote:

Originally Posted by 67vetteal

There is a company in Fla. that will refill your correct unit. They do cut it open and re-weld it.

http://www.classicair.com/Default.asp

I used them to rebuild the drier and compressor for my 65, very happy with the results, and price. $68 to rebuild my drier.

Nov 20, 2007 | 01:09 PM

yesfam

Burning Brakes

Joined: Jan 2007

Posts: 970

Likes: 5

From: Hagerstown MD

The dessicant bag is only designed to absorb about a teaspoon of water. When the material has reached it's saturation point it will begin to break down into a powder and will contaminate the system. Get it rebuilt, install it immediately, vacuum the system completely and then recharge for the best results. A small amount of oil should also be added when replacing the drier. I believe about 1-2 oz. should be sufficient.

Nov 20, 2007 | 01:53 PM

67vetteal

Melting Slicks

Joined: Aug 2004

Posts: 3,078

Likes: 101

From: Riverhead New York

At this point it would be wise to Flush the system and recharge from Scratch. Lacquer thinners or Mineral Spirits are used to Flush the system. Do your homework before starting this proceedure. It can be done by a Do it Yourself mechanic. Recommended amount of Mineral Oil is 11 Onces (5 Compressor/6 Condensor). Al W.

.
http://www.autoacforum.com/

Last edited by 67vetteal; Nov 20, 2007 at 09:37 PM.