air con

[Aerotop Dave]

Originally posted by Wez

The H tap is a cover for where you charge the system, the sightglass when the AC is running should be flowing clear liquid, if its flashing (bubbles) it needs topping up.

 

 

My sightglass looks completely empty, is that normal?

 

I forgot to check it with the aircon running though

[Terminator]

Originally posted by 200SX Boy

My sightglass looks completely empty, is that normal?

 

I forgot to check it with the aircon running though

 

It will look empty when not running. To check, run the engine put air con on flat out, rpm at 2000 for about a minute or so. Any bubbles should be gone by then. If not or you see nothing at all you need some more gas.

 

 

You can only use the coolant designed for the system don't stick R134a in a R12 system unless you want a huge bill.

[Wez]

Originally posted by Terminator

You can only use the coolant designed for the system don't stick R134a in a R12 system unless you want a huge bill.

 

How do you know if its got R12 or R134A in the system?

 

[Terminator]

I am 99.9% certain that all MIKV's were fitted with a R134a system as standard. The bonnet sticker usually gives it away unless you have a non standard bonnet. There is only one part number for the bonnet aircon gas sticker.

[SupraBabe]

Originally posted by Paul Laing

Before i took my car to toyota and they knackered the sump the Air Con worked fine, now it doesn't work at all, could they have done something? My dad can get it re-gassed for free through work but the strange thing is the revs don't go higher when it's pressed , they went higher in my last Supra but had no air con then so i'm a bit confused

 

 

im glad you said that i was just about to ask the same thing seen as i have your old car.

 

so what does it mean then cause the revs do go up but no cold air comes out, so what would cause that???