Thanks John. That William has stuck through the mess is a testament to some inner strength. They could have done what the CEO said when they announced the takeover that "we're going to let Merle's be Merle's". Yeah, right...
This sounds like an expansion valve problem. The only way to know for sure is to have gauges attached when it looses cooling. If the low side is extremely low or into vacuum, it's time for a new expansion valve and drier.
It took me forever to get an answer from Denso years ago, and they said exactly the same thing. FWIW all aftermarket driers that I know of, are compatible with both refrigerants.
From the pressure readings, it could be overcharged (anyone work on the system recently?) or another possibility is the fan clutch isn't doing it's job.
It's normal for the drier to be hot.
I'm not sure what replacing the expansion valve & drier will accomplish. Usually if the expansion valve is...
Now that the holidays are mostly done and the initial shock has worn off, we need to share the passing of our beautiful, sweet Sam, at 5:55am on 12/23. He spent the evening of 12/22 in distress, with us laying close to him, asking what he wanted and needed. Eventually, after many attempts to...
The Denso 471-0204 is the correct compressor for the FJ60's. It will have the correct pulley and comes with oil for R12. If you're converting to R134a just drain the oil and replace with PAG46.
It's probably most likely, but there could be another issue, I'm just not sure what else it might be. If you end up replacing the expansion valve, check for debris in the lines and replace the drier, which is attached to the side of the condenser.
The front and rear units both operate off the same compressor and are interconnected. It's possible the rear expansion valve has failed and is keeping the rear from cooling. Leaking lines to the rear unit is a fairly common issue on the 100 series if you find you're having to add refrigerant.
Perhaps I misunderstood, but you are running the compressor on air not refrigerant?
If that's the case, there's no heat transfer taking place and the suction side of the compressor, which would normally be receiving cool/cold refrigerant is ingesting hot air which would explain the compressor...
The original system (R12) uses mineral oil for lubrication. R134a systems use PAG oil as the R134a won't carry mineral oil and you don't want to have the compressor run dry.
Did the shop leave the system empty when they returned it to you? The only way they could have vacuum tested it was if the system is empty. Sometimes leaks aren't obvious under vacuum as it pulls things together, then under pressure, they're pushed apart. Did they put it on a lift and check the...
I don't see that Denso sells just the clutch for the compressor. It looks like it might be tough to find. Ranshu in Reno shows to have stock of new clutches, part #15-3031N.
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