[s-cars] R12 condenser

[Peter Golledge]

What I've done to my type 44 R12 systems (and this seems to be the general trend):

a.  Buy a new dryer/orifice tube
b.  Flush out the compressor/condesor/evap
c.  Have new hoses fabricated by a decent hose shop
d.  Evac, fill with 134a compat oil, charge with R134a

Now I don't know if the early S-car stuff uses the same GM derived gear as the 5000/200 but if they do this should be doable.

The 200 I converted a decade ago is still running nice and cool, not as good as R12/stock but good enough for daily use.


On 8/6/2011 9:22 PM, docwyte at comcast.net wrote:
> Yeah, so that was me that did the R12 to R134a swap on my '92 S4. The good points are the A/C works extraordinarily well and that parts are still available for it.
>
> The bad points are it is NOT a bolt on swap in all aspects. Now all the large hard parts bolt on, but the thread pitch is different between the R12 and R134a stuff, which meant having to build 3 hoses.
>
> That was a PITA and that one hard line for the receiver dryer almost brought us to a crashing halt. No one could weld on the new fittings, the aluminum was so thin they'd burn through it. Finally found someone to successfully braze it on there and we were in business.
>
> I went through this because I had a bad condenser and compressor, but I wish I would've just sourced good used R12 ones and bit the bullet on the freon...
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