Just wanted to tell you guys (and girls), that I refilled my AC system
a couple of days ago.
The technician came with a gastube written R134A written all over it,
he sucked the air out of the system, then checking for leakings, finally
he refilled the system with R134A gas.
It took about 10 minutes and he did not change anything. I thought I
had to change oil and some packings, maybe the guy took a short-cut!
Living in Sweden you rarely use the AC, we are having our spring here right
now and today we had a really hot day, for being in Sweden, about 13 C
degrees.
So I havent really had the opportunity to check it out.
Ok, so… I had to pay him 400SEK (Swedish Krona) that would be approx. $47.
But, I had to drive 150 miles and the Jag takes about 1,4litres/10km and
the gas
is $1 per liter so the cost for only the fuel would be like $34
Good luck everyone with you ACs, my fingers are still crossed!
Best regards,
Daniel
87 Jaguar Sovereign 3.6
98 MB SEL600 (not sold!)
00 MB SEL600 soon!
Are we to assume that your 1988 XJ6 Jaguar has an A/C system that has been
converted to a refrigeration gas called 134a? Prior to this recent event of
adding 134a gas? Please advise??? Basis the if the system has not been
converted, and there still is R12 compressor oil in the system, and 134a has
been added, the 134a will not carry the existing compressor oil to all the
needed sites in the system. This is one of the problems with the change-over
process. If there is 134a in a system that has R12 oil in it this is not a
good situation for the compressor.
Did you actually see a factory labled can that said 134a on the outside? No
tape on the can or plastic sleeve or something? The size of the can or
vessel is not important they are all labled in big letters 134a.
I have heard that some persons that are not R12 certified mask the R12 cans
and label the outside as 134a. They then add R12 as usual. If that is the
case the system might be OK. How they get the R12 is mystery for the EPA to
solve, at least on this side of the pond.
In order to use 134a gas in a R12 system the fittings on the car have to be
changed ( among several other things) to accept the fittings on the 134a can
and the coupling hose. I suggest NOT using your system and journey to a
certified A/C shop and ask some questions about what you know and what is or
is not in your Jaguar’s A/C system.
Regards from
DaveA’s 89XJ6
A piece of the original message…
Hi All!
Just wanted to tell you guys (and girls), that I refilled my AC system
: a couple of days ago.
:
: The technician came with a gastube written R134A written all over it,
: he sucked the air out of the system, then checking for leakings, finally
: he refilled the system with R134A gas.
:
: It took about 10 minutes and he did not change anything. I thought I
: had to change oil and some packings, maybe the guy took a short-cut!
:
Just wanted to tell you guys (and girls), that I refilled my AC system
a couple of days ago.
The technician came with a gastube written R134A written all over it,
he sucked the air out of the system, then checking for leakings, finally
he refilled the system with R134A gas.
It took about 10 minutes and he did not change anything. I thought I
had to change oil and some packings, maybe the guy took a short-cut!
Daniel:
The compressor is lubricated by the oil as it flows through mixed with the gas.
Most R-12 systems use mineral oil as the lubricant for the compressor. HFC-134a
will not mix with mineral oil and the oil will stay in the system settling to
low areas by gravity. I understand this does not cause any problems on converted
systems. There are two type oils used on HFC-134a systems. The common names are
Pag and ester. Pag will not mix with R-12 but ester will, and can be used with
R-12 systems. If you still have mineral oil in the system I would not operate
the air conditioner. Most likely the compressor would work for some time until
the lack of proper lubrication causes it to seize up.
You will find people that have opinions about which oil is best, Pag or ester,
for retrofits. Because of the compatibility of ester oil with CFC-12 I have used
ester oil with the retrofits I have performed and have not experienced any
problems. I do not have any experience with using PAG oil on retrofits. To my
knowledge the cars that have been manufactured with HFC-134a have PAG oil in the
system.
