{Chrysler 300} Re: A/C Fun

[Kevin deGraauw <kdegraauw@xxxxxxxxxxx>]

Use both an oring (but use a square cut profile), not round one,  and a fiber gasket. That steel fitting has a groove in it for an o ring- have to use that. The fiber gasket seals the rest. When I took mine apart to service my compressor, it had both, so I found both at Classic Auto Air or OPGI- can't remember. 

Do not waste your time with the steel stamped gasket, that is for later compressors with flat fitting faces on them. 

Good luck!

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From: 'James Douglas' via Chrysler 300 Club International <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Sent: Thursday, August 29, 2024 5:41:53 PM
Cc: Chrysler 300 List Server (chrysler-300-club-international@xxxxxxxxxxxxxxxx) <chrysler-300-club-international@xxxxxxxxxxxxxxxx>
Subject: {Chrysler 300} A/C Fun

 

For the second time I have taken the 300K into the A/C shop. The new clutch assembly is working fine. The new condenser is working fine.

 

Now when they try to get a full charge the fitting at the front of the compressor is leaking.

 

The fun part is that I have THREE different gaskets for that fitting.

 

1. Is a square (round) O-ring.
2. Is a “standard Gasket� and is an NOS MOPAR.
3. Is a steel one from an aftermarket dealer.

 

The one on the car is leaking. I will take it off in the AM. The shop tried a new O-ring and it did not seal….

 

Mt question to this august group is can anyone tell me which one they have used and it does not leak and/or does one use a combination of the O-ring and one of the others?

 

Since it is a 40-minute drive and waiting around for 4 hours each time I go to the A/C shop (nobody in San Francisco can deal with old car A/C) I end up killing an entire day. I really do not want to go for round three and come home warm.

 

Any ideas would help? I have a couple of spare fittings, and I took the better looking of the two and hand lapped it on my lapping plate in a figure eight motion to make sure it is flat. The only other thing that may be possible is the furnace braze of the tube to the mounting plate may be leaking and the shop is perceiving it as the sealing material. The problem is that I do not have a compressor that can generate 250 PIS head pressure at home to test it.

 

Hug!

 

James

 

 

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