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vac pump oil cloudy...

DontKnowSquat on Sun July 26, 2009 12:03 PM User is offlineView users profile

Year: 1981
Make: Turbo Regal
Model: Buick Sports Coupe
Engine Size: 3.8
Refrigerant Type: R134a
Country of Origin: United States

Ok.... on my way to searching for a leak during the vac pumping stage, I sprayed soapy water onto the low side nipple. Found the leak, (nipple was being obstructed by a heater hose enough to cause the fitting to leak), now water must of been sucked into the vac pump oil. Now the oil thru the sight glass on the pump is milky white.

I disassembled my gauges and cleaned them out with compressed air and some lacquer thinner to clean out all the hoses and the internals of the gauges.

Can I continue with the vac process with that cloudy oil? Or should I replace the oil? I'm using Robinair premium vac pump oil and the most I can pull is 28 Hg.

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DIY'er for life!!

TRB on Sun July 26, 2009 12:33 PM User is offlineView users profile

I would suggest an oil change. But you could still use the vacuum pump as it is not going to inject any oil into your system.

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daman on Sun July 26, 2009 1:52 PM User is offlineView users profile

Vac pumps work most efficient with fresh clean oil,i would replace it ASAP.

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'00 Pontiac Sunfire 2200 I4 SFI
'99 Chevy 4x4 Z-71 5.7 Vortec v8 CPFI
'97 Chevy 4x4 6.5 Turbo Diesel 2500
'95 Pontiac Grand Am GT 3100 v6 SFI
'88 Chevrolet Camaro IROC 5.7 TPI(49,000 original miles)

Chick on Sun July 26, 2009 5:11 PM User is offlineView users profile

Yes, change the oil..it's the right thing to do....

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Chick
Email: Chick

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