Martin, older Volvo 240:s used a York compressor looking very similar that the Ferrari used. On vacation now for 3 weeks so cannot check at our databases i they carry the seal as part though. ///TRS
I feel your pain! My newish compressor has an oil leak..... But from the sump ..... Not losing gas. Very annoying
Hi Peter, thanks for letting me know. How we say: "a problem shared is a problem halved". Mine also. Still enough gas for the magnetic clutch to engage. But I think it won't take long till the system is empty, because the refrigerant circuit and the compressor crankcase is not separated completely tight. Otherwise, if both would be completely sealed against each other, compressor oil would not disperse in the whole system and all components. So over time gas escapes through the crankcase and the leaking shaft. I suspect you have the same problem with the shaft seal. See also my post #14. I have an appointment this afternoon in my workshop for extracting the refrigerant. I will report back when I have pulled the compressor. Probably during coming weekend. BTW. I found a picture on ebay, which shows such a compressor inside its box. If that's the way, they are stored by the factory, this would fit the wrong storage theory regarding the shaft orientation I mentioned in post #14. Unfortunately I unpacked mine and stored it with the shaft oriented horizontally. Image Unavailable, Please Login Best Regards Martin
G'day Martin. The leak on my compressor is definitely not from the shaft seal. It's leaking from the bottom of the compressor and the bolts are tight. I was under the impression that it's not the refrigerant oil, but I would love confirmation.
Hi Peter, with a leak you only see the compressor oil. The leaking refrigerant will evaporate immediately after escape. Best Martin
BTW, I just took my car out of the garage. This is the mess, which collected over three days, after I have wiped off the same mess last weekend. Image Unavailable, Please Login Best Martin
Proof, that not only oil, but also refrigerant got lost, is the fact, that I just had the system extracted. From the 800 grams we filled the system early this year, 90 grams remained. Best from Germany Martin
Hi Tommy, I hope to have eliminated this annoyance by mid of January. You're nevertheless welcome I'm 100mls. southwest of Stuttgart. In the lowest left corner on the map. Near Switzerland and almost on the french border. Best from Germany Martin
Hello together, yesterday I had the refrigerant extracted and this evening I pulled the compressor. After removal of the front flange and the seal I couldn't absolutely see anything what would explain this serious loss of oil and refrigerant. I will now do one more try with a new seal and if the problem recurs, I will convert to a Sanden rotary compressor. After searching the www and reading a lot of forum posts, no matter what car brand, having the same problem, I slowly begin thinking, that the T/CCI York knockoffs are complete crap. Furthermore, because the shaft seal is completely differently designed than the one in my old original Aspera compressor, which was actually an old York and NEVER had a leak problem at the compressor itself. Not even after the car sat for four years at a dealer. Another alternative would be re-engineering the shaft seal similar like I did on my waterpump conversions. Any opinions? Best from Germany Martin
See this, Martin? It suggests that there is also oil in the sump....separate to the refrigerant oil and gas. I believe that's where my leak is coming from. I'm confused! https://www.ferrarichat.com/forum/posts/138751048/
Hi Peter, no need to be confused. There's a lot of nonsense in that thread. It's simply not possible to separate compressor oil sump and refrigerant circuit completely. If the compressor leaks oil it will also leak refrigerant. But please allow me one question. Since you're an A/C specialist. Do domestic A/C equipments work significantly different than those in our cars? Best from Germany Martin
The principle is the same, but domestic A/C systems generally use electrically driven hermetic compressors, so there is no shaft seal to leak. Additionally the whole system is hermetically sealed with brazed joints, so no mechanical joints to leak.
Meanwhile my research led me to the conclusion, that the T/CCI York knockoffs are actually made in China. They recently opened a facility in India. 'nuff said. What annoys me is the 'stars and stripes'-sticker they put onto their junk. Too man stories in the www about failed seals. I have an offer for a used original York-compressor from a 308QV, which was stored since 2012. Could I use this after such a long storage? Replacing the seal is no option, because the replacements are the same junk which I found in my new compressor. Best from Germany and thanks Martin
This is how much oil came out of the sump of my compressor, but it still has plenty of refrigerant and works really well. Image Unavailable, Please Login
Hi Peter, because there IS refrigerant present inside the crankcase, the only explanation could be, because your leak is below the oil level, that the oil sump is still enough amount to prevent the gas to escape through the leak at the bottom. My case is different, because my leak is at the shaft seal above the oil level. Oil has stopped leaking as soon as the level was below the shaft seal (without the compressor running of course), but the refrigerant leaked further. Be cautious. When all oil is gone, refrigerant will follow, if the compressor hasn't gone south before. Best Martin
Hello together, o.k. Lat night I installed a little setup for controlled pressurizing my compressor. Here's the result. No comment: Best from Germany Martin
Thanks Peter. I am relieved. Now, that you A/C specialist confirmed, that it's perfect that way, I will reinstall the compressor untouched Best Martin
Hi Lester, nothing complicated. I just turned a hose nipple for a filler valve (see my post #19 on page 1), because I couldn't find something with hose end and M14x1.5 thread and connected it with my compressed air regulator. For plugging the fittings I had to purchase two endcaps and seal them with teflon tape on the fittings. For future reference, these threads are 7/8"-14 UNF for the high pressure / discharge side, and 3/4"-16 UNF for the low pressure / suction side. Image Unavailable, Please Login Image Unavailable, Please Login I should have painted the cap too. The compressors are coming in glossy black and I painted it silver to match the original. I taped the cap, because I feared, that paint spray could get to the seal. LOL! Best from Germany Martin
A correction. The threads of the the fittings I mentioned before are the other way around. 7/8"-14 UNF for the low pressure / suction side and 3/4"-16 for the high pressure /discharge side. Best Martin
Hello together, today I received the new seal kit, which Robert (crowndog) sent me. Thanks to all who offered me their help regarding supply feom the U.S. You are great folks Though german customs regularly is a PITA it arrived after 8 days. I installed the seal kit this evening and a pressure test at 6 bar showed a tight seal. Like mentioned in a previous post, there are two different seal designs for these,York-compressors. I meanwhile think, that the newest design is an error. Therefore I purchased the seal, which resembles the design of the old originals, which is still (or again?) available. I hope I can assemble all things over the weekend, because it seems, that we have spring in January in SW-Germany. Best Regards Martin
