A/C on sale!

If anyone is planning on charging their
system up, Princess auto has cans of
DuraCool on sale for $10.00

You'll use 2 cans to charge a system.

I can evacuate you if you have R134
adapters installed already, or just go buy a
set of them.

My vacuum pump has fittings for R134.  All cars up until about 1993 had R12.  You can get adapters to convert the fittings.



An R12 fitting has external threads and looks like a tire valve.
An R134 fitting has internal threads (see above pic) and looks like an air tool fitting.

If you have a complete, but non working A/C system, quite often I can bring it back to life in about an hour or so, and 2 cans of Duracool.

I evacuate the system (pull a vacuum) first, to see if it leaks.  Then apply pressure to it, to see if it leaks (sometimes it will only leak after pressuring it!).  If it seems to be holding, I fill it.

If it DOES leak, we can stop right there - and you're just out the cost of the valves, and a bit of labour.  You could then hang onto the cans for your next/other/buddies car, or we can keep going to find the source of the leak.

KMS Tools also sells purple colored refrigerant.  You pump that into the system and run it for a while.  Every once in a while you check for a purple stain.  Works great.

DG

nothing because the duracool is compatable with r134a and r12

Patrick wrote: If it's the "old" stuff in there, what would happen if the DuraCool was simply added to the system (using adapters if required) without the system being purged/evacuated?

Fire451 wrote: nothing because the duracool is compatable with r134a and r12

Romeo wrote: I'd just top up and hope for the best.

 

When is there actually a need then to purge/evacuate the system?

 

Fire451 wrote: you do not want to overfill the system

What's the worse case scenario?

 

Patrick wrote: What's the worse case scenario?

Something the other's forgot to mention is that it becomes way less effective at cooling (And underfilling can cause icing around the evaporator).

 

As to your question Doc, because you arn't supposed to be legally buying or selling R12 any more, that's why.

As for toxicity, they're are 100% equal in toxicity, the difference is that R134a is also a green-house, whereas R12 is also an O.D.S.

Ah, see, when I was speaking of a retro-fit, I was referring to the R12 to R134a retro-fit (As one technically doesn't need to retro-fit for Duracool), which is why when you started arguing it, I assumed you were just mildly psychotic.

LOL! It's ok, we're cool Doc.

Hey guys... chill out!

Seemed like an appropriate thing to say in an A/C thread.

 

Guess I caught them on the last day (o/p July 4th!).

If you can find a flyer from them for that sale period - take it into Walmart (who also sells DuraCool, but at WAY too high a price).  The people at the customer service desk are a little stunned quite often, and sometimes won't check the sale date when you go to price match it (not that I've tested this...  cough...).