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
