Air conditioning flush

[YotaRob]

Just let the shop do it sense they will already have the car apart for flushing the a\c. Everything is a variable as to how you want your a\c,
ambient temp,
oil amount,
freon amount,
how well it was flushed,
how well your compressor is,
what shape the other parts are in,
how well your fans work,
and how much moisture the desicant bag has absorbed.

It takes practice.

 

[CyFi6]

what i am mainly worried about is paying 300 dollars, getting it back and having a system that still performs poorly because one of my parts is worn out or not working right. I am taking the evaporator out to change some seals, so while im at it i am going to change the expansion valve because it is only 20 dollars

 

[starscream5000]

The oil will come in a compressed can just like the R134a does.

I'm not certain on the amount of refridgerant needed in a supra, but in most cases xxoz. will=xxpsi with AC on max and car running IF you have a good vacuum.

 

[CyFi6]

You guys might want to consider cleaning out your evaporator case next time you have the system open haha

 

[HommerSimpson]

you know what... I think i will do that to mine in very near future and replace the valve.. Im getting higher then normal pressure and suckin hard.. so i think i will do that...
thanks for getting to the nitty gritty of the real problem...
sucks i got a damn computer in way.. but i need to redo some stuff in there anyway..

Good job :}

 

[YotaRob]

Keep it on recirculate and it only pulls in stuff from the glove box if your shield is missing.

 

[CyFi6]

Ok i have an update. I did end up fully flushing the entire system myself and filling it myself with r134a and ester oil, and now i am having some odd pressure issues, maybe you guys can take a look at this thread i made on the AC forum and see if you have any ideas.

http://www.autoacforum.com/messageview.cfm?catid=2&threadid=19796&STARTPAGE=1

Thanks guys.

 

[jetjock]

Nick D is saying he's new at this? That's funny.

Other than the charge being a bit high and maybe some air from not purging the charging hose that doesn't seem to bad. You're not going to get much less than about 42 F vent as there's always going to be a 10 F or so drop across the evap. Sure, it could be a bit better but it's cold isn't it?

As for that stuff in your evap box, two words: cabin filters. Been on my car for years...

 

[figgie]

I want to do a flush myself, but not only do i not know how to do it properly.

That much is already evident (and I don't mean that in a mean way). Anyway, blowing colder. Probably and I highly doubt it. The MKIII supra is expansion valve based and as such is very very temprature dependant.


on the R134a front for the retro fit.

I saw a document from Toyota.

650g (1.43lbs) of r-134a to retrofit the Supra.

 

[figgie]

You guys might want to consider cleaning out your evaporator case next time you have the system open haha

should attach those pictures here... photobucket blocked at work. But with that said. I saw mine so I can imagine!

 

[CyFi6]

the only problem is i don't know if it is going to cool that well is 100+ temperatures when i move, so im trying to get it 100% perfect BEFORE i move, because once i do im staying in an apartment and its very hard to do any work out in 100 degree weather, in a parking lot. My whole goal here was to get it working perfectly here so i wouldn't have to work on it again there. Of course, i have no real way of knowing how it will perform seeing as temps here done exceed 80 degrees. I guess i should have stuck with my original plan and left it to the pros!