Can an A/C unit be tested off the car - Alfa Romeo Bulletin Board & Forums
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post #1 of 3 (permalink) Old 04-16-2012, 03:30 PM Thread Starter
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Can an A/C unit be tested off the car

Hi all, i am removing an engine from a 84 spider with a/c into a 1977 body and dont want the a/c unit. My question is can the unit be tested, the belt was not on when i bought the car and not wanting a/c in the nortwest i never thought to buy one and check it. i thought if the a/c unit is still good maybe i could make a few bucks on it.
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post #2 of 3 (permalink) Old 04-19-2012, 05:11 PM
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"testing" an ac system can mean anything. testing the comp? The hoses? The evap for ;leaks? Condenser? TEV? Never heard of testing it off the car- most one can do (I have) is kinda "test" the comp on a bench for "suction", although the scrolls are difficult to do vs the piston type as they dont generate suction/vac as quickly as one can spin the shaft......

You need lots of equipment to test components off the car. Ive done it, but need a shop who is very nice- testing the evap for pressures with nitrogen for leaks, for example. You have to have the who;le system attached.

87 spider veloce
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post #3 of 3 (permalink) Old 09-01-2012, 10:17 PM
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Put your thumb over the suction port of the compressor, covering it completely, & turn the compressor over with a socket. If it sucks on your thumb, the compressor is probably good. You can test the field coil by putting voltage to it through a 3 amp in-line fuse. If it can go for about 5 minutes or so without blowing the fuse, the coil is probably OK.

Michael Keith
Vintage Car Solutions
Houston, TX

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94 164LS; 83 GTV6; 74 Spider; 67 Fiat 124 Sedan
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