RX7 Info

[SmbFD3S]

If you mean which gas is in the system bud, you will have the older gas if you have an early FD. The 134a was only brought in for newer cars.
 
If you mean diagnosing any leaks in the system then you can try a specialist company or even Kwickfit.
 
If you have the older stuff dont breathe any of the older gas in (if any remains in the system) when you de-gas the car to fill up with the new stuff.
 
Chris

You can\'t just fill an R12 system with R134A they ARE NOT compatible with each other due to the oils they use... R12 is now illegal to use due to CFC content. You will need a conversion to R134A and due to the cost, most people just rip it out. Failing that try to find the a/c from a 1995/6 car or later and swap it over, then you can take it to garage or somewhere.

[SmbFD3S]

I doing it my self my dad is in the air con trade. U need an adapter to gas the system and obviously the gas which should be 134a. Any one knows any one to diagnose the air con systems for vehicles

If you\'re dad is in the trade mate then it\'s exactly the same as you diagnose a conventional system, only easier cos it\'s smaller... You\'d want to re-pressurize the system with a dye and then use a black light to see if there are any leaks, or use an electronic tester.  
 
You should also use the appropriate gauge set and vac out the system.  you\'d let it stay in vac for a period of time and read the gauge.  Obviously after that period of time the gauge should read the same, if not there is a leak.
 
Refrigerants are not to be messed about with, they can seriously burn you and are also damaging to the environment, take it to a professional if you wish to keep it who has the right equipment, this way it will be safe....

[marcosgarcia]

Is it decatted, my previous rx7 use to get really warm, if it has cats they could be blocked and hence it could be because of that.  no harm in checking