Lemustache

It's starting to get hot where I'm located & in no time it will hit the 100's. The A/C in my 88' 911 does not blow out cold air @ all, so I am planning on taking it to an A/C specialist to check it out.

I've heard that these year 911 A/C's aren't anything special.

My question is, how much should I be ready to invest in getting the A/C running @ factory level again?

Thanks.

CT Mike

I had the shop do mine last year. It's 100% now. They did a bunch of stuff including replacing a number of lines, the evaporator, etc. Luckily the compressor was good. Converted it back to R40 (the old stuff) which I understand has better heat transfer capabilities and is less likely to leak since its denser than the new stuff. Works great. Wasn't cheap $1500 or so but was definitely worth it. Kept me cool in CT thru the leat of the summer with no issues.

Amber Gramps

Funny you should ask.... I was just on the www.rennaire.com site looking at new hoses.

I'm thinking it's time to put my A/C back in the car. Let someone else do the work, not gonna happen. If I can take it out, I can certainly put it back in.

Makmov

hard to say anywhere from a few hundred for just a recharge to thousands of dollars if you start getting into compressors, evaps, and condensers.


I think Mike means R12.

R12 has better cooling properties and runs at less pressure than R134/a. So yes if you find a shop that will do R12 that is the way to go.

Lemustache

Thanks for the feedback guys. very helpful.

rusnak

If the compressor is not locked and has not thrown a belt, then you might be looking at a flush, receiver dryer, and new o-rings.

If the compressor is seized, then that's trouble. You can tell by turning the center (not the pulley) of the compressor by hand with the key off.

I like the ProCooler receiver dryer kit.

llangston1

Last summer here in Houston I added a rear fender conderser/fan unit I got from Zimms along with a complete set of barrier hoses to my '87. I also resealed the A/C compressor shaft and reworked the evaporator. My evaporator was already a serpentine Rennaire unit so I just purchased their insulation package and cleaned up and insulated the evaporator box. I rechared with R-134a since my car had been converted by a PO. The AC has worked very well since then although I believe my compressor is still leaking oil or at least it still throws oil on the underside of the engine lid. I still get good A/C pressures and lots of cold air out of the vents. We'll see how it does this summer. You might need to add a fender condensor/fan unit as well unless you have a tail and use a larger turbo condenser with some fans under the tail.

Ed Hughes

It is not hard to spend $1500-2000 to get a marginal or inoperative A/C system working well, depending on what all is needed on your car.

Edgy01

Lucky for you, at least you have an 88. The ducts were changed in 1986 to larger ones so at least you can move a greater volume of air. Prior to 1986, it was a complete waste of time with the factory ductwork. If it gets hot where you are, then it is truly money well spent. There is nothing worse than having a car in a hot climate and the a/c is nonfunctional. The numbers that you are hearing are spot on. BUT, make sure that you are dealing with a truly good shop. You really want an automotive a/c shop, and not just some auto mechanic, doing that job.