A/C Compressor
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Jon
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I wonder if the clutch coil isn't getting enough voltage to stay fully engaged? Thus the clutch doesn't stay fully engaged and begins slipping, thus the friction plate overheating?
I dunno. That might not even be possible with a magnetic clutch. Perhaps it's purely engaged or disengaged.
I'm only two sips into my first cuppa coffee :-)
Cheers
DD
I dunno. That might not even be possible with a magnetic clutch. Perhaps it's purely engaged or disengaged.
I'm only two sips into my first cuppa coffee :-)
Cheers
DD
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It could be voltage drop at the clutch when engaged, caused by a poor ground, poor wiring, bad clutch relay, or high resistance connections. Measuring the voltage at the clutch during operation should give a clue. The voltage shouldn't significantly drop when the clutch is engaged.
Another cause can be severe overcharging of refrigerant, locking up the compressor. Double check how many ounces of refrigerant are supposed to be used. A partial blockage on the high side could also cause the compressor to lock up. A/C gauge pressures should give you a clue if that is the cause.
Another cause can be severe overcharging of refrigerant, locking up the compressor. Double check how many ounces of refrigerant are supposed to be used. A partial blockage on the high side could also cause the compressor to lock up. A/C gauge pressures should give you a clue if that is the cause.
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If you know what the R12 quantity was, here is a chart for conversion of refrigerant weight from R12 to R134a.
https://www.electronicshub.org/r-12-..._in_pounds_lbs
https://www.electronicshub.org/r-12-..._in_pounds_lbs
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