Gentle netters, two questions regarding freon for the dreaded delco beastie --
1. Bentley sez "don't top it up. evacuate all freon and replace." Is this
really necessary if you want cold air and are satisfied with only 97% of
factory specified performance? Or is there a chance of screwing something
up if I just add enough freon to bring the pressure up to the right value
(I really do need to get one of those pressure guages).
2. Bentley shows only a high pressure port. How does a weekend mechanic add
more freon? Is there a low pressure port hidden somewhere, or is a $2500
machine required to add more gas?
PS -- Right now, only certified refridgeration specialists can buy freon in
containers less than 25 pounds (in these United States). In a couple years
no one will be able to buy "new" freon. (how about re-cycled from junk yards?) I just bought an anti-social 30 pound tank that will hopefully last until
both R-12 cars are replaced with something else (not to mention the home
a/c and fridge and freezer). At $210, it might save a thousand down the road.
It probably would have cost $80 a couple of years ago.
Is this stuff banned yet in other countries too?
86 5000S, 87 Vanagon