75ohm

That's the rub, right there... it's a sanden 134 compressor with 134 in the system but the low pressure fitting isn't right, thus, my attempt to put a fitting on there... either that or I am completely missing something. Maybe it's a 134 conversion??? Hmm...

diego944

ahh... now i understand!
sorry, but only way to get the fitting on is to drain.

some people just use the high side to top off. not the right way, but might work for you.

marky522

If you need to do it high side you need an AC machine i believe. Thats how i do mine, and if your doing it with a can on the low side you need to start the car to draw the charge in.

Mark

Rock

Those conversion kits you get at the autoparts store suck.

Theyre standard fittings I guess and ours must be metric. If you replace the schrader valve to fit the fitting (otherwise they wont fit), they wont seal and will leak freon.

75ohm

Always something fun with AC... lol