I think it is just a replacment to R12, not R134a.

BTW, R314a is completly different to R134a, and is compatable with R12,
like RS24 is.

Difference being is that R314a and RS24 are pumped in as liquid rather
than gas (like R12) but is RS24 is more comonly using in industrial
chillers/fridge wagons, but is starting to get used in car aircon as it
is compatable.

Yeah, I know R12 is illegal and works well compared to R134a, I hadn't realised
there were also alternatives to either, and if RS24 works as well as R12 and is
a direct replacement for R134a, I can see an upgrade coming on.

A colder air con system doesn't need to work for as long as a less cold one, in
the sense of not having to pump the gas round as many times. This isn't
violating conservation of energy, it's reducing inefficiencies I reckon.

It does, but it is also illegal, hence wanting to try a fill of RS24, or
R314a which compatable, rather than going with the necessary changes to
make R134a work, only to find the compressor is knackered.

Hmm, interesting...

Sounds like it might work better than 134 as well.

Aye, bigger stronger, colder. Much more dominant in the battle to come.
;)

Hopefully!  A lot of peeps with R12 systems have not bothered to switch
over, but then many are also still working - larger molecules, heh! :)

I've looked through the reciept bundle, and it appears to have had a
regas and test in 1995, and 1998. He said it hasn't worked while he had
it, did get Toyota to price it up, was going get a 3rd party specialist
to have a go, but didn't bother. It's an old R12 system, which means it
might be expensive because R134A needs all sorts of changes, but if I
can find somewhere that will use RS24, it is a drop in replacment for
R12, so I can find out whether it needs any additional work after a
dye/regas.

Excellent news all up, congratulations. :p

On the air conditioning, did he say when it last worked?  If it's not worked
for some time, it may be expensive to get it done, otherwise it might be
prudent to get it regassed now...?

Hasn't got the same "Woosh, Ohmygod...." factor of the Saab, but the
seats seem to suit me better, and it is loverly and smooth.
Tax until end of December, MOT until june, no body damage, no rust,
paint good except looks like a couple of supermarket carpark scrape type
scratches, nothing serious.

Dives great, but a little play (slight clonk, not big thud) at the rear
on deceleration.

Still still has the Toyota "For Life" bright red coolant. Going to
change all the other fluids over the next couple of weeks as I get used
to it. Makes full boost as it should.

Has a Thatcham cat 1 alarm and imobiliser, with the certificate.
Nothing messed with original 15" wheels, near new P7000's all round,
full bunch of paper work from the 1st "Toyota approved used buyer" pdi
check, right through to the last service.
Only problems are, cloth interior, and aircon doesn't work (well winters
near here, so I'll get some one to have a look as it looks like the fuse
has been pulled as the switch doesn't work).

H plate Celica GT4 4x4 turbo 137k miles, very near full service history.
Any guesses to how much?
He was selling it a few weeks ago for ?2300 but was getting messed
arround.
Had it advertised at ?2000 to move it.

a)?2k as he won't budge after dropping ?300 to resell?
b)?1900 because I was local and had cash?
c)?1750 because I am the next Mike Brewer, and he was a BMW owning
sucker who needed his drive back, and a 330 Coupe can't be cheap to have
parked on the road?

Prace bets now.....