AC Question

[Mike80911]

I have been chasing a leak in my AC system and found it on the side of the compressor where the charge fittings bolt in. My question is when I disconnected the lines to remove the plate the lines did not have O rings on them, aren't these lines supposed to have o rings?

[GH85Carrera]

Yes, there should be an O-ring there. And it takes very little torque to seal it. It is a large nut and very easy to over tighten.



If you tighten it much at all, it will crush and cause this. I fought that leak once before.

[Mike80911]

Thanks. There is a new line on the low side put on prior to my ownership. I can't believe someone would install a new line and not put an o ring on it.

[kuehl]

Stuff happens; we are humanish

[Mike80911]

Originally Posted by kuehl

Stuff happens; we are humanish

Agree But the PO had all work done by "professionals" you would think an experienced pcar mechanic would remember to put the o-rings on.

[kuehl]

Oh. Suddenly, all P Car mechanics are not human? Hmmm.. Interesting observation.

I guess the past 3 P Car Dealerships that serviced my various P car rides
are filled with humans then. Cause none of them have been perfect.

And, the past few P car Techs, each had over 30+ years of experience,
who messed up things, are human too.

[Mike80911]

My first word in my reply was “agree” We do all make mistakes sorry if I offended you in any way I was only looking for clarification on the o ring question I thought maybe it did not use one in that location. PS you might want to find some new mechanics if they make that many mistakes

[kuehl]

... .its always the "but" that makes me a non believer , lol

the....

Yeah, but
I know, but
I understand, but

but but but

[Mike80911]

Originally Posted by kuehl

... .its always the "but" that makes me a non believer , lol

the....

Yeah, but
I know, but
I understand, but

but but but

"If only installers read directions the first time, or the second, or the third time" Maybe then they would not forget the o-rings don't you agree?

[gsxrken]

This is a funny thread for me b/c I did just this, and Charlie found it. I installed every inch of a new AC kit from Kuehl, following his excellent instructions to the T, or so I thought. Since I didn’t own the vacuum pump, gauges, or know-how 15 years ago, and since I live about an hour from his shop, I decided to drop off the car at his shop for the inaugural purge and charge while I went golfing nearby. I came back at the end of the day and he informed me that he had to track down what turned out to be a missing o-ring. Duh. He very matter-of-factly said “You did a nice job. Everyone makes a mistake now and then”.
So this is Deja vu for me.

[Mike80911]

Originally Posted by gsxrken

This is a funny thread for me b/c I did just this, and Charlie found it. I installed every inch of a new AC kit from Kuehl, following his excellent instructions to the T, or so I thought. Since I didn’t own the vacuum pump, gauges, or know-how 15 years ago, and since I live about an hour from his shop, I decided to drop off the car at his shop for the inaugural purge and charge while I went golfing nearby. I came back at the end of the day and he informed me that he had to track down what turned out to be a missing o-ring. Duh. He very matter-of-factly said “You did a nice job. Everyone makes a mistake now and then”.
So this is Deja vu for me.

So Ken are you saying you might have also installed the hoses on my 930

[wazzz]

Originally Posted by gsxrken

This is a funny thread for me b/c I did just this, and Charlie found it. I installed every inch of a new AC kit from Kuehl, following his excellent instructions to the T, or so I thought. Since I didn’t own the vacuum pump, gauges, or know-how 15 years ago, and since I live about an hour from his shop, I decided to drop off the car at his shop for the inaugural purge and charge while I went golfing nearby. I came back at the end of the day and he informed me that he had to track down what turned out to be a missing o-ring. Duh. He very matter-of-factly said “You did a nice job. Everyone makes a mistake now and then”.
So this is Deja vu for me.

Or was it rather "You did a nice job, but..."

[emac911]

If it makes anyone feel better......I replaced every line on my 87 and did not have any leaks at all.

However, I did search for an hour for the non-existent fourth bolt on the compressor. It has four mounting holes, but Porsche only used three! I was close to ordering another one when I realized it only used three.

[wazzz]

Originally Posted by emac911

If it makes anyone feel better......I replaced every line on my 87 and did not have any leaks at all.

However, I did search for an hour for the non-existent fourth bolt on the compressor. It has four mounting holes, but Porsche only used three! I was close to ordering another one when I realized it only used three.

That's because the fourth attaching point is a stud with a washer and nut.

[emac911]

Originally Posted by wazzz

That's because the fourth attaching point is a stud with a washer and nut.

Nothing on mine. No place for a stud.

#11 only 3 required.

https://nemigaparts.com/cat_spares/pet/porsche/911/512u/813200/

[wazzz]

My bad. Was looking at stud labeled 2B with washer and nut 7 and 8 but they don't hold the compressor itself. Only the underside plate.