Michael.

Michael Townsend wrote:

> I'm about to do the same, but I need some more clarification:
>
> 1:  Where is the expansion valve, and where do I purchase one?  I didn't
> see it on our friendly internet vendors' sites.

Find SouthEast Air in Fort Worth Texas, they have everything at a great pirce.

>
> 2:  I can see one of the ports on the line near the compressor.  Where is
> the other one?

Remove left rear kick panel in cargo bay.

>
> 3:  Shouldn't you replace the ports before you evacuate the system?  :-)

Ports merely screw on top of old ones.

>
> 4:  I have never heard of flushing with non-chlorinated brake cleaner.  Do
> you just spray it in each section of plumbing, followed by the air?

Correct, you can purchase the cleaner sold at parts houses, but it is
basically non-chlorinated brake cleaner. You will need 4 or 5 cans, shoot it
in the open line, then chase it through w/compressed air until it runs clean
on the other end.

>
>
> Thanks,
> Michael Townsend
>
> ----------
> > From: Mark & Laura Magee <marklaura@HOUSTON.RR.COM>
> > To: vanagon@GERRY.VANAGON.COM
> > Subject: Re: AC Conversion: R12 to R134A
> > Date: Monday, July 23, 2001 5:10 PM
> >
> > Remove your compressor, drain mineral oil, flush compressor and lines
> > w/non clorinated brake cleaner using an air compressor and blow tip to
> > remove old oil/junk.
> > Fill compressor w/PAG oil.
> > Install new expansion valve.
> > Install new filter dryer.
> > Close all lines.
> > Vac system.
> > Install new R 134a ports.
> > Charge to around 40 PSI on low side: 80% of R-12 charge. Sight glass may
> > still show bubbles.
> > Cold air blows and your done.