Herman K

Here it is.

Tony

How do you swing that without all the EPA crap that has to be "proven"??
I never thought about ebay honeslty, but with my AC not as cool as it should be i would like to pick up a few cans.

Also...whast the stuff called "freeze 12"
????????????????

I need a few more mexico city trips

IcemanG17

Herman
No link?
Brian

Randy V

C'mon Herman - we have been looking for a write-up on cleaning the evaporator.

goliver

Tony,

Took the test online for less than $30 bucks last year. Piece of cake. If you can get through all the systems manuals that i'm certain you have had to get lic. for your job this will be an absolute no brainer. Freeze 12 (i'm pretty sure) is flammable. It has butane or propane in it if i'm not mistaken. When I bought my big canister last year off of ebay the guy didn't even ask for the epa number that he stated he would require in the ad. I gave it to him anyway as I had the damn thing. Unless you have a scale and a heater might be easier to buy a lot of 4+ 1 lb. cans.

Herman K

Search for this thread " AC FAN-AIRBOX WORK/PICS ON GTS " and see the pictures I will post some more pictures on this an the car later on today. Believe it or not I have go to a brerakfast mtg this morning at 08:00

94 GTS 5spd

j.kenzie@sbcglobal.net

My 84 came with Freeze 12 installed. Has worked fine for 2 seasons. Freeze 12 is non-flamable and is compatable with R12 and R12 Lubricants (mineral oil). FWIW

Herman K

http://www.4u.com/928GTS/evaporator.htm

94 GTS

Randy V

Those instructions seem to start in the middle of the process, Herman. How does one access the evaporator in order to clean it?

SharkSkin

That job will involve pulling the hood(though I've heard it's possible to avoid this step), then pulling the HVAC blower out(3 screws, two above & 1 below). That will get you to the first pic at that link. I've heard the blower can be pulled without pulling the hood off but that it's a lot more trouble that way. YMMV.

Herman K

1. I recommend removing the hood [which in my opinion is not very hard to do, 3 m13 bolts on each side, watch out for any shims that may be in place between the hinges and hood mounting surfaces]
2. Than remove the 3 screws that are holding the fan in place, 1 inside the car from under need - one visible from the out side and one in side the fans outlet side [in order to see and get to this screw you’ll have to remove the rubber transition (duct) piece that is located between the fan outlet side and inlet of the box that’s housing the evaporator (and in some cases the filter)
3. I will post more details of the repair I made to the flapper valve located in the air recirculating box ASAP
4. see www.4u.com/gts for pictures

Herman K

Link repair http://www.4u.com/928GTS/

Randy V

So no 'start to finish' tutorial?

Perhaps you'll get a chance soon to update your site with a comprehensive step-by-step procedure - a LOT of folks would be interested.

Thanks!

dr bob

Randy--

You guys with the GTS cars should have much less "contamination" of the evaporaor, thanks to the pollen filter. Clean/replace that and you should be in good shape.

Making the Big Assumption that there isn't air in the gas path, you should be able to predict/measure the loss of transfer efficiency using a set of AC gauges and a thermometer.

------

For those with Freeze-12 installed who think that they don't have a flammable gas in there... HaHaHa! It's true that the gas isn't flammabl;e while captive in the system. It's the leaks, when the gas mixes with air, that's when the fun starts! Many of us saw the pictures of the fire that Professor Ott suffered at the OCIC dyno session, when a tossed belt grabbed the suction line to the compressor and pulled it open. Car was saved due to fast thinking and several fire extinguishers that were handy. I recommend that anybody considering this stuff needs to call Louis and get a second opinion.

My two sense...

Randy V

Interesting, Bob - thanks.

I did remove and clean the pollen filter. How can I visually examine the condition of the evaporator?