[DML] Re: recharging my R-12 system with R-416A (another update on #2613)

["Elvis" <elvisnocita@xxxxxx>]

Farrar - I always use R413a which is meant for substituting R12, too.

but the system is anything but empty as long as the compressor even 
turns on, there is at least 50% still in there !!!
normally they refill about 1 pound on my car - which, if I remember 
correctly, is only 1/3. So this is far away from free of coolant...


Is there a special place on the system which tends to leak most ?
first I had to refill it every 2 years, now it needed a refill 
after only a few months. who has experience with it ?

Elvis & 6548



> Gang,
> 
> Despite the fact that the can says "To be used by EPA certified 
> personnel only," I picked up two cans of R-416A yesterday. (a.k.a. 
FR-12.)
> 
> Since my A/C clutch cycles once every few seconds and the air 
coming out 
> is as warm as when I merely use the vent, I believe I can safely 
assume 
> that the system is free of coolant.
> 
> In the DML archive there are posts which say "mixing refrigerants 
is 
> dangerous" and others which say "it's not dangerous, but 
technicians 
> won't touch your car if you mix refrigerants." The guy at NAPA who 
has 
> worked on my other car for years says that I can put FR-12 into a 
system 
> with a tiny amount of R-12 in it and have no ill effects.
> 
> My car has NOT undergone a conversion to R-134A. Even if there is 
any 
> R-12 left in the system, it can't be that much, since the a/c 
clutch 
> engages so many times per minute.
> 
> So following the fuel distributor O-ring replacement (which should 
be 
> fine now that the car has been sitting for the better part of a 
week -- 
> assuming I can find torque specs for the silly M5 bolts), I will 
fire up 
> the car and charge the system with R-416A as my next task in 
preparation 
> for Gettysburg. :) Just for a change, the list of things to do on 
the 
> car is getting shorter not longer ... heh.
> 
> Cheers,
> Farrar Hudkins
> #2613 (auto)
>



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