[DeTomaso] use sight glass in AC that has been retrofitted to 134a?

[Julian Kift]

Jim,

You need to put a set of gauges on the high and low ports and check both pressures.

Did you switch the evaporator valve to one with an orifice size for R134a? If not your high pressure will be off.

Julian

Sent from my iPhone

> On Aug 4, 2016, at 6:44 PM, Pantdino via DeTomaso <detomaso at server.detomasolist.com> wrote:
> 
>   After switching the AC system to 134a, do you use the sight glass in
>   the dryer or go by the pressure at the low pressure port like with
>   modern cars?
> 
>   Sorry, but I don't recall what I learned several years ago when I
>   switched the system over.
> 
>   Jim Oddie
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