A/C oring sizes and source?

[obaa996]

I'm awakening my '94 after a long hibernation (8 yrs?). I knew there was a refrigerant leak in the a/c system before it was put away, and would like to track it down.

I suspect the leak is by the front condenser, but will be verifying with a dye test. In the meanwhile, I'm trying to hunt down replacement orings for the entire system (would rather just have them on hand if needed). I recall being told that the condenser ones were an odd size, and perhaps hard to get. Does anyone know where I could find the part numbers and/or correct sizes for all the orings that I would need, and which position they are for?

Thanks,
Mike

 

[Steve-Indy]

I use that AC Pro packets available from AutoZone...many rings, many sizes. As I recall, they may be 13.7 or 13.8 for Vipers. Also, get the kit with the Schrader valve stems by same company as they can be the source of leaks as well...kit includes stem tool and new high and low pressure port caps.

 

[obaa996]

Hi Steve,

Thanks for the quick reply!
I didn't see that brand specifically at the AutoZone site, but found this:

https://www.autozone.com/cooling-heating-and-climate-control/a-c-system-o-ring/p/surebilt-auto-a-c-system-o-ring-set-240-piece/540059_0_0

which lists both the sizes that you mentioned (13.7x1.9, 13.8x2.5).
The 13.7 vs. 13.8 is based on the diameter of the hose they fit onto? I'm hesitant to trust replacing the orings based on the sizes currently on the car, as the a/c developed issues only after the system was serviced; I think they may have used the wrong ones.

Thanks!
Mike

 

[obaa996]

So, it does look like the condenser outlet is where my leak is occurring; the stain is pretty obvious under the black light.
However, I don't see anyway to get to it. At this point, the front fascia and radiator have both been removed, and there is no access to get to the line. There is an "baffle - upper air" (4709 403 per the parts book) blocking access to the line, but I don't see any mention of it in the shop manual, and it's not obvious how to remove it?
Any hints/tips on this?
Thanks!

 

[KyViper]

I think this is what Steve referred to.
Ky