Date: Thu, 3 Jul 2003 09:43:28 -0500
Reply-To: Owen <olists@THEBRANDS.ORG>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Owen <olists@THEBRANDS.ORG>
Subject: A/C Repair (was Re: R134a in 88 Weekender.)
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> I have two 84's that have air conditioning that don't work.
> If I new what to do and where to get what parts and tools I'd buy
> everything I need to
> work on them.
--cut---
I reached the same conclusions a few weeks ago. If I am going to drive older
cars in Texas it is time to learn A/C's. Since then I began accumulating
some of the tools and knowledge. Here is some of what I have found thus far:
I found the forums on this site useful
http://www.ackits.com/
Unfortunately I found most of the tools they sell cheaper elsewhere. It was
a good starting point to get my head around the basics of refrigerant
systems. Please understand that I am a complete newbie on this. Take any
info with that consideration.
I need the tools to do the job:
A decent set of r134a / r12 gauges (MasterCool part no 66773) can be found
on Ebay for 89.00 buy it now.
r134a can tap and hose, r12 can tap and hose,vent gauge - 15.00 total from
the Red Tek distributor
Some other tools I bought just because it seems like chasing a needle in a
haystack without them -
5cfm vacuum pump(Mastercool model 90056) bought a new unit on Ebay auction
final price 170.00 vs new price of 290.00
All refrigerant leak detector (Yokogawa H-10 Pro) NIB on ebay for 179.00 vs
new price of 330.00
If there are other list members in the Houston area I would be glad to offer
the use of these tools. Oh wait that's right I live in Vanagon no man's
land.
Other Parts -
Used compressor from a list member
Receiver / Dryer 30.00 from Ken at Vanagain.
Expansion Valve from Ken - 25.00
Case of Red Tek (12 cans) $85 or so.
There seems to be huge controversy over r12a vs 134a. From what I have read
of Red Tek and other list members recommendations I am going to give it a
go. Environmentally safe, requires lower pressure than even the old r12 and
therefore everything works a bit less. Seals, engine etc. The atomization of
oils presents a fire risk in any refrigerant. 20% of any gas, lethal or non
lethal, can kill you. The usual disclaimers here, just doing a brain dump of
what I have read thus far.
All that said I ordered my red tek too late to get here in time today so I
may have to charge it up once with r134a so we can hopefully have air for a
short 5 hour road trip this afternoon.When I get back I will charge it up
with the Red Tek.
If the 134a works it will give me a decent benchmark against the Red Tek. I
will try to be scientific about it (add the recommended oils, measure vent
temp etc) I may even wind up with a spare valve and dryer if the vanagain
package doesn't arrive in time today. This would facilitate a true
comparison by fitting a new dryer
Owen
