Winter Chassis Re-fresh

[goldnsx]

The A/C compressor doesn't seem to work. Do you hear it kick in when pressing the A/C button to ON?
My A/C service station has two gauges to check the pressures while the A/C is running.
Are you sure that there is enough R134a in the system?

[wixer]

The A/C compressor doesn't seem to work. Do you hear it kick in when pressing the A/C button to ON?
My A/C service station has two gauges to check the pressures while the A/C is running.
Are you sure that there is enough R134a in the system?

Yes, compressor kicks in when the A/C button is pressed to ON & I pop the engine hatch to check I can see the pulley spinning, so it's definitely running.

I had the system filled last month with RS24, a replacement for R12, as the system was never modified for R134a & there's no signs of leakage.

I am going to speak to the company who charged the system, to see if they can check the pressures while the compressor is running, next week.

[wixer]

Finally got to the bottom of the non functional air-con, in my NSX.

I went back to Bee Cool in Kettering today, for them to try & diagnose why there's no cold air coming through the vents, with the air-con ON & the compressor engaged. Candidates were either the compressor clutch or the compressor unit. Having connected the car up to one of their air-con units, the gauges displayed no pressure in the cars system, only 2 months after it was fully re-charged by Bee Cool. There was no visible signs of a leak anywhere & no signs of green fluid on the garage floor, so the cars system was filled with Nitrogen gas & a detector used to find the leak.

The leak was found to be one of the shrader valves used for charging the system, so both were replaced & another pressure check done, this time resulting in the pressure maintaining itself. A quick swap of the triple pressure switch for a new item & the car was re-gassed again with RS24 & finally success, there is now cold air coming through the vents, so I have a fully functional air-con system for the first time since I've owned the car.

It's not very often a fix is so cheap on an NSX, I was planning a compressor replacement or repair, so glad it was something easy & a good lesson learned, to check the small easier parts first.