Quote:
Originally Posted by A930Rocket
I’m about to look at my 86 911 AC. It has a small leak and needs to be charged up, per the previous owner…
Hopefully, it goes a little better than OWP’s!
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If your 86 has the original rubber hoses, they are non barrier hoses. The R-12 just passes through, even 134a if it has been converted. Back in the mid 80s, R-12 was 50 cents per can, and Porsche figured the non barrier hose was cheaper than barrier hose, and they could save a few bucks per car in production.
So if you have the OEM hoses, expect to recharge once per year. You really should replace the 40 year old rubber hoses with barrier hoses.
I have barrier hoses and go for years with zero need to recharge, and I have 38 degree air at hurricane fan speed when it is 100+ degrees outside. More than just new hoses are needed to get that performance from the pitiful factory AC of the Carrera or SC however.