AC Leak
 

Hey guys
So today I finally got into charging the AC, and i found a big old leak
Where the low side connects to the compressor...my friend poured some soapy water on it (bad idea?)
so anybody knows what kind/size of O-ring it takes?
Also, will it need to be vacuumed after I'm done replacing the o ring?

Re: AC Leak
 

Taken from an answer given to me by Tapani
The drier numbers I don't have, but from memory they are 9,8x1,85mm (outer diam x thickness).
You can also get a kit from Auto Zone , or I imagine other Auto parts stores, for about $5.00 that has 8 or 10 different sizes.

Subaru has them in stock $1.85 each. Remove the old one and take it in. I can imagine they are the same across the Japanese market, Honda ! Toyota, Nissan etc. . If you take it to their parts dept they should be able to match it. It will be light green. Apply a small amount of AC compatable grease to it when installing it.
My garage only charged me $99.00 for the repair ,checking and parts,evac. Dye. and gas charging and rechecing for leakes with sniffer and UV light.
If you buy the gas with charging unit, + one additional can it will run u about $16.00 a 12 oz can and $20.00 for the gage unit. Takes 18 oz. You didn't say what year the car was. Or what gas it has. This is all based on 134a not the old 12
Reason I know I did it myself the first time and bought all the stuff to save a $ . It leaked and then had it done professionally and he will fix it free if it leakes within 60 days.

Re: AC Leak
 

The compressor discharge o-ring is 73039AA080 and the suction side is 73039AA090.

A pressure test with nitrogen is good idea to start with. And yes, you absolutely need to evacuate the system prior to recharging it.

Tapani

Re: AC Leak
 

I think this is it
Also, big lots was selling r134a for $9 (12oz)...bought a few


tried to get a rental one, but couldn't find one...

anybody knows a place to rent one? or to get it evacuated for like $20?

Re: AC Leak
 

At $9.00 a can use the 134a. O ring looks wrong but dim. Sound about right .

Re: AC Leak
 

If you have a 5hp or larger compressor, you can get a venturi vacuum pump from harbor Freight for about$15 with a coupon. They also have a gauge set for about $38 with coupon. Nitrogen pressure test is by far best, but if system holds vacuum it may be good...certainly, if it doesn't hold vacuum it has a leak.
Try to use a florescent dye, if it has a leak it will be easier to find.

Re: AC Leak
 

I can hear the leak...I mean easier than that to find? :eek:
I don't wanna pay for all of those, i mean i'm in SF, and AC is required for a month or so...so small leak would be fine since i can recharge it next year, and fix it when rob a bank!!!:p