YACT: where is the AC service port for me to recharge the AC?

[daveymark]

Text

 

[imported_Phil]

Uh... have you done this before?

 

[Pepsi90919]

one is a low side fitting, the other a high side fitting. they have different sizes.

 

[daveymark]

Originally posted by: Phil
Uh... have you done this before?

yes, not on this car though. eveythings packed so tight together, I can't follow the line from the compressor.

 

[imported_Phil]

Originally posted by: daveymark

Originally posted by: Phil
Uh... have you done this before?

yes, not on this car though. eveythings packed so tight together, I can't follow the line from the compressor.

OK. That looks suspiciously like a radiator bleed valve.
IIRC, A/C lines are metal, aren't they?

 

[jtvang125]

Ususally it's the smaller of the two. Unscrew the caps and you'll see the difference. I highly recommend you have a shop do it though. You can really screw the compressor up if something goes wrong.

 

[cjgallen]

Originally posted by: jtvang125
You can really screw the compressor up if something goes wrong.

:roll:

They're different sizes, the smaller one is what you want. My recharge tool only fit on one of them. I recently recharged mine, BLOWS COLD!!!

 

[quentinterintino]

Also, the low-pressure port is usually indicated by either a blue or a black cap. Your recharge kit should only fit on the low-pressure end anyhow. Just be sure to fill it to the correct pressure. Outside of these limits will destroy the compressor, and likely the condensor as well.

 

[sharkeeper]

If it's working just low you can tell soon by running the system. That looks like a high side (liquid return) line to me.

What you want is the low side (vapor) line that's heading back to the compressor. It normally gets cold. You can charge gas and *short* bursts of liquid in this line while the unit is running. I say short because if you leave the vessel inverted for extended periods and enough liquid gets into the compressor and slugs it hard it can damage it!

Yes in automotive systems the fittings are a different size to prevent DIY'ers from connecting a can to the high side and getting the new look when the can ruptures!

 

[daveymark]

figured it out, it was the right side. Ahhh, cool air at last

 

[quentinterintino]

good work!