air con charge

[TonyBlair]

Cheers mate, I\'ll bare that in mind.

I had the air-con for the first time the other day. For some reason a smell of, what I can only describe as BO, comes out of the fan outlets. Is this common to air con systems? I\'m reluctant to use the air-con anymore, however if it gets as hot as it has been recently then I don\'t think there\'s much choice in the matter.

Cheers
Jon

[ozzyvelcro]

yeah that does happen sometimes ive got some spray you can have which will sort that.

[TonyBlair]

Nice one. Next time I\'m down your way I\'m pop in and use it.

Cheers, Jon.

[ro284]

Thanks for this address Kevin! helpfull guy called Chris. http://www.car-air-conditioning-supplies.co.uk/ i have ordered a diy kit, to refill, that is compatible with R12 & 134, as i am not sure which one was put in when my compressor was changed before i got the car, i just need to know which is the top up or fill valve now, marked red or black!
Cheers Bob

[kev-yorks]

You can\'t get it wrong there both different sizes and it only fits one.Did you remember the adapters if its on the old r12 system.Old r12 system has small screw thread fittings.R134a larger fittings that take a quick release coupling on the fill pipe.
Kevin

[ro284]

i THINK IV\'E MESSED MINE UP! I got a replacement or drop in D.I.Y. gas, and connected the hose supplied to my system which i am pretty sure was completely empty,The gas is R413a, apparently one which is suitable to mix with R12 or 134 should there be any dregs in the system from when the compressor was changed before i got the car.  but i think i put too much in if that\'s possible! the compressor clicks in for a short while then starts cycling on--off on--off, loading the engine so much that it will stall the engine! any help from anyone much appreciated,
Cheers Bob

[Brett]

Did you put any oil in the system after you vacuumed it?  What are you seeing in the sight glass?

(BTW, for those FC owners out there, I repaired my aircon system then recharged with RC29, I tested the system for leaks with RC22 which actually ran colder, but there you go, cant win \'em all!)

[ro284]

Thanks Brett,i was told there was no need to vacuum the system and would not know how or have the equipment! in the sight glass before i added the gas i could see a green oily fluid with a lot of air, but there was no gas in it i\'m sure. now there is i light green fluid with no air bubbles at all, seems D.I.Y. is false economy, buit whats best to do next? Help!
Cheers Bob

[Brett]

What year is your car mate?

[ro284]

Thanks Brett Its a 93 gen 3, fortunately a type X. thankfully with a sun roof.
5k on a rebuild,
Cheers Bob

[Brett]

Right heres the info you need :-

600g of the appropriate Refrigerant gas. (Note some of the compound gases must be filled correctly or they will lose some of there effectiveness)

100-140g of Nippon Denso Compressor oil/Lubricant

Pressures @ 25degC :-

Low = 1.5-3.0 bar (20-45 psi)
High = 13-15 bar (185-213 psi)

I hope that helps, I got it out of the Mazda workshop manual

[ro284]

Thanks again Brett, i think the next step for me is to get a pressure guage on it,and see what it is now,apparently there is a charge of 1000g in the DIY can, i think there is more than 600 g in the system but difficult to judge, at a guess 800g!  comparing cans, diyourselfers beware, next stop will have to be a proffesional.
Thanks  Bob

[Brett]

No problems mate

A word of warning to all of us, venting refrigerant gas is a crime and could cost you £1000 fine, if in doubt get a proo to do it, it wont cost you that much!

:wave

[ozzyvelcro]

No problems mate

A word of warning to all of us, venting refrigerant gas is a crime and could cost you £1000 fine, if in doubt get a proo to do it, it wont cost you that much!

:wave

venting of refrigerant in this country is more serious than rape or murder upto
5 years prison or 20,000 fine!

[ozzyvelcro]

do you know if the system was recharged when the compressor was changed if not it would definetly need vacuuming to take out any air and moisture.