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bubbles in the sightglass

bballcrf on Mon April 21, 2008 4:51 PM User is offline

Year: 1993
Make: toyota pickup
Engine Size: 22re
Refrigerant Type: r12

Hey guys im new here and need some help. Last week we changed my compressor and receiver dryer, flushed the system and did the evacuate leakdown thing then charged my system. The problem is the sightglass has a steamy milk look to it, the temp at the vent varies between 40-50 at idle and lowest on the frewway is maybe 39. Last summer my system was much colder. We did the evacuate thing a couple times, anything else we can try? Its tolerable now but i hate leaving things halfassed, and is it bad for the compressor to not have a clear window?

mk378 on Mon April 21, 2008 5:00 PM User is offline

Could be contaminated oil, from not getting all the flush agent out. What did you flush with? What kind of oil did you put in?

bballcrf on Mon April 21, 2008 5:15 PM User is offline

I bought some type of kit from napa and it had the flush in it. The oil they gave me was for r134 so my buddy who works for a dealer put his own oil in it.

Chick on Mon April 21, 2008 7:02 PM User is offlineView users profile

Did you charge by pressures or weight, could just be low charge??

What were the pressures and the outside temp, and why didn't you charge until the sight glass was full? May have needed an ounce or two more, or were the pressures to high? give us as much info as you can..

Email: Chick


Freedoms just another word for nothing left to lose

Edited: Mon April 21, 2008 at 7:03 PM by Chick

bballcrf on Mon April 21, 2008 9:35 PM User is offline

Well im not to familiar with ac but they said pressures were good and somehow they knew exactly how much freon they had put in wich is exactely what the sticker under the hood says. It was done at a local dealership and even some techs walking by checked it out and scratched their heads too. Im curious how long the system should be leaked down or whatever its called. Cause ive been reading around and mine was only done for about 10 minutes both times if that. The outside temp was about 80 but we were in the bay, had coolers and all. Ive been driving it for a week now and its cold all the time, i keep the thermometer in the vent and it stays in the low 40s but again im worried how long will this last.

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