Did you remove the old valve from the r12 low pressure connector before installing the r134 adapter? Also, my adapter wasn't opening enough so we had to add a metal spacer to the pin on the hose side adapter so that it pressed the pin a tiny bit further.
On Aug 19, 2012, at 12:18 AM, Les Noriel <[email protected]> wrote: > Doing this very same thing on my Corrado. I decided to convert to R134. So > far I've replaced those items which are notorious for failure-- the > Receiver/Dryer, the High Pressure switch, all of the O-rings, and the > Expansion Valve. Compared to my Golf MK2, the Corrado engine bay is very > tight. I have to literally disassemble so many other systems just to gain > access to the fittings and hoses. I've been able to pull a vacuum for over an > hour and it does not leak down. However, I've been unable to add oil or > refrigerant. It appears too easy to pull a full vacuum and I suspect I'm only > evacuating a portion of the entire system. There may be a blockage somewhere > in the system. > > I have another compressor so I'm going to replace it. Since I have to remove > everything up front to gain access to it, I might as well replace the > evaporator as well. > > It's going to be a hot summer! > > -Les > > On Aug 18, 2012, at 9:02 PM, Chad Rebuck wrote: > >> Today I replaced the expansion valve and receiver/drier. The ac expansion >> block was the only area showing significant signs of the dye, so I hope the >> r12 stays in the system. I did recover the remaining r12, which was really >> only enough to slightly cool the car at night. Using the vacuum pump we >> pulled a vacuum of 30 for an hour then filled up the system. >> >> Next tasks for my car: >> >> - replace brake master cylinder >> - install track pads and new front rotors >> - headliner replacement >> - fix power locks - none are working >> >> Larry, whats on your list? :) >> >> >> On Sun, Jun 17, 2012 at 12:04 AM, Les Noriel <[email protected]> wrote: >> >>> I too am doing this on my Corrado. I am replacing the expansion valve and >>> all of the green O=rings as well as the reciever dryer. All of these >>> obtainable and inexpensive from partsgeek. I decided to also replace the >>> high pressure switch. All of these arrived yesterday along with my vacuum >>> pump >>> >>> Les >>> On Jun 16, 2012 7:44 PM, "Galen Bergthold" <[email protected]> wrote: >>> >>>> That should be the AC expansion valve block. The 4 AC o-rings on this are >>>> replaceable. Might also consider a new Receiver/Drier if refilling the AC >>>> system. >>>> GB >>>> >>>>> Date: Sat, 16 Jun 2012 22:04:14 -0400 >>>>> From: [email protected] >>>>> To: [email protected]; [email protected] >>>>> Subject: Re: [a2-16v-list] Rebuilt ac compressor >>>>> >>>>> I injected some dye and oil a couple weeks ago. The compressor has a >>>> very >>>>> slight amount of dye coming from a spot toward the pulley, but it >>> doesn't >>>>> appear to be leaking where I suspected. However, the system does have >>> a >>>>> pretty good leak coming from the connection block near the firewall >>>>> passenger side. 3 of the 4 connections had strong signs of dye. Are >>>> those >>>>> 4 connections just sealed with o-rings? >>>>> >>>>> On Thursday, May 24, 2012, Chad Rebuck wrote: >>>>> >>>>>> Thanks for the discussion guys. >>>>>> >>>>>> I know the compressor functions perfectly I just suspect it is >>> leaking >>>>>> around the shaft. I'll inject some dye along with the r12 freon this >>>>>> weekend and see if I can confirm the leaks. My dad purchased a r12 >>>> tank a >>>>>> long time ago and my 90 gli is the only car still on r12. We do >>> have a >>>>>> vacuum pump too since we do work on ac systems now and then. >>>>>> >>>>>> I was really not looking forward to removing everything needed to >>> reach >>>>>> the evaporator and expansion valve connections to replace o-rings :( >>>> maybe >>>>>> it is easier than I'm thinking. I can't remember if I've ever had >>> the >>>>>> heater/ac coil box out of this car before. >>>>>> >>>>>> On Thu, May 24, 2012 at 11:34 AM, Matthew Yip <[email protected]> >>> wrote: >>>>>> >>>>>> Compressors rarely fail - think of them like a coil, either they work >>>> or >>>>>> they don't. Some of the newer compressor have dainty electrical >>>> connectors >>>>>> that render them useless (which is both expensive and frustrating) >>> but >>>>>> that's another matter. >>>>>> >>>>>> >>>>>> One of my buddies purchased a Harbor Freight vacuum pump to perform >>> a/c >>>>>> work. I haven't used it yet but from what I'm told, it really >>> sucks... >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> ________________________________ >>>>>>> From: Charlie Russo <[email protected]> >>>>>>> To: Volkswagen a2 16v discussion list <[email protected]> >>>>>>> Sent: Thursday, May 24, 2012 8:07 AM >>>>>>> Subject: Re: [a2-16v-list] Rebuilt ac compressor >>>>>>> >>>>>>> I agree with others here. Unless you have CONCRETE, ABSOLUTE, proof >>>> that >>>>>> the >>>>>>> compressor is the source of your problem, checking the ENTIRE system >>>> for >>>>>>> leaks is the way to proceed. >>>>>>> Also agree with Matthew that should a compressor purchase be >>> necessary >>>>>> stay >>>>>>> away from auction sites & craigslist for this part unless you like >>>>>> gambling >>>>>>> that the used/rebuilt part will actually work. >>>>>>> >>>>>>> The A/C system in my 1985 Golf Daily Driver leaks some. (original >>>>>> compressor >>>>>>> BTW). When it gets to the point where it does not cool as well I >>> just >>>> add >>>>>>> some freon once a year or so. Just not enough time to trouble shoot >>>> and >>>>>> find >>>>>>> the source of the leak. >>>>>>> >>>>>>> >>>>>>> >>>>>>> -----Original Message----- >>>>>>> From: Matthew Yip >>>>>>> Sent: Wednesday, May 23, 2012 10:54 PM >>>>>>> To: Volkswagen a2 16v discussion list >>>>>>> Subject: Re: [a2-16v-list] Rebuilt ac compressor >>>>>>> >>>>>>> I wouldn't buy a rebuilt compressor from Fleabay - too many risks >>> that >>>>>>> you'll end up with a lump of aluminum. That said, buying from >>>> Rockauto or >>>>>>> similar would be a safer bet if you want to buy on-line. >>>>>>> >>>>>>> As for your leak - most likely it's a dry o-ring. You could >>> probably >>>> just >>>>>>> pull the lines and replace all the o-rings. Then evacuate the >>> system >>>> and >>>>>>> refill it with a sealer and an oil charge. >>>>>>> >>>>>>> >>>>>>> >>>>>>>> ________________________________ >>>>>>>> From: Jack Simon <[email protected]> >>>>>>>> To: Volkswagen a2 16v discussion list <[email protected] >>>> >>>>>>>> Sent: Wednesday, May 23, 2012 7:17 PM >>>>>>>> Subject: Re: [a2-16v-list] Rebuilt ac compressor >>>>>>>> >>>>>>>> Don't just look at the compressor, have it professionally leak >>>> checked >>>>>> with >>>>>>>> a dye injected into the system, there are a ton of places it could >>> be >>>>>>>> leaking, all of which are expensive to repair. Mine still leaks >>> but >>>>>> being >>>>>>>> in south central PA, it isn't that critical to me, being near St. >>>> Pete >>>>>>>> makes a helluva difference!! >>>>>>>> >>>>>>>> On 23 May 2012, at 18:34, Chad wrote: >>>>>>>> >>>>>>>> I may have a leaking compressor on my 90 16v. What experiece do >>> you >>>>>>>> guys have with rebuilt compressors? Price range is rather wide >>> from >>>>>>>> what I saw on eBay. I'm also considering having the hoses rebuilt >>>>>>>> depending on cost. An ac charge lasts only 4 months at this point >>>> and >>>>>>>> the compressor is attracting lots of oil/dirt. I'll do some leak >>>>>>>> detection too to be sure. >>>>>>>> >>>>>>>> _______________________________________________ >>>>>>>> a2-16v-list mailing list >>>>>>>> [email protected] >>>>>>>> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list >>>>>>> >>>>>>> _______________________________________________ >>>>>>> a2-16v-list mailing list >>>>>>> [email protected] >>>>>>> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list >>>>>>> >>>>>>> >>>>>>> >>>>>> _______________________________________________ >>>>>> a2-16v-list mailing list >>>>>> >>>>>> >>>>> _______________________________________________ >>>>> a2-16v-list mailing list >>>>> [email protected] >>>>> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list >>>> >>>> _______________________________________________ >>>> a2-16v-list mailing list >>>> [email protected] >>>> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list >>>> >>> _______________________________________________ >>> a2-16v-list mailing list >>> [email protected] >>> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list >>> >> _______________________________________________ >> a2-16v-list mailing list >> [email protected] >> http://mail.a2-16v.com/mailman/listinfo/a2-16v-list > > _______________________________________________ > a2-16v-list mailing list > [email protected] > http://mail.a2-16v.com/mailman/listinfo/a2-16v-list _______________________________________________ a2-16v-list mailing list [email protected] http://mail.a2-16v.com/mailman/listinfo/a2-16v-list
