A/C Coolant Conversion

----------------------------------------------------------------------

Date: Tue, 08 Jul 1997 16:45:10 -0700
From: Brandon Miller 
Subject: AC
To: "Toy4x4@tlca.org" 

Wow,
I was about to get my AC charged and the guy said the only thing you
need to do to use the 134 is change the reciever and the oil.  So, I
called the dealer to see if the new reciever dryer that I just bought
was compatible and he said no, there is no kit available to change over
a Toyota yet.  Hmmm, does anybody know different.  I think I am just
going to charge it with freon but it sure makes me curious.  The dealer
said the other components can't handle the newer refrigerant.
- -- 
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Brandon Miller                     email: sac78483@saclink.csus.edu
Sacramento, CA                            millerb@gaia.ecs.csus.edu
                     url: http://gaia.ecs.csus.edu/~millerb/4x.html
                  
1983 Toyota LB locked F&R, 5.29:1 gears, roll cage, etc. etc.
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

------------------------------

Date: Tue, 8 Jul 1997 19:27:34 -0500
From: "Michael Rowe" 
Subject: AC
To: 

> Wow,
> I was about to get my AC charged and the guy said the only thing you
> need to do to use the 134 is change the reciever and the oil.  So, I
> called the dealer to see if the new reciever dryer that I just bought
> was compatible and he said no, there is no kit available to change over
> a Toyota yet.  Hmmm, does anybody know different.  I think I am just
> going to charge it with freon but it sure makes me curious.  The dealer
> said the other components can't handle the newer refrigerant.

My friend changed his '90 Xcab w/AC to R-134a last summer. He had to
replace the expansion valve, reciever, and compressor as well as oil (which
comes in new pumps). Then he charged it himself. Of course he borrowed a
vacuum pump to draw the air out, etc. etc. That thing gets "nipply" cold
even in S.Texas 85% humidity and 100 degree days.

Michael Rowe

------------------------------

Date: Tue, 8 Jul 1997 21:57:39 -0500
From: Steve Capuano 
Subject: AC
To: Toy4x4@tlca.org


True... 134 attacks rubber components.  Try a 12 drop in replacement first.
Freeze 12 I believe is one choice.


Steve Capuano			1996 Tacoma ext cab V6 4X4
capuano@hypercon.com		31x10.50x15 Wrangler RT/S
				Rear LockRight  K&N filter
NRA lifetime member		Dynomax 2.5" cat back  Synthetic all around

Headers are next on my list.  Oh also a free flow cat!

------------------------------


------------------------------

Date: Thu, 10 Jul 1997 00:09:09 -0700
From: "Todd and Terry" 
Subject: R-134, R-12, EPA, If it's brown with corn, I'm not eatin it.
To: 


Steve, I'm not flaming you but I've had enough.. I was on the first US 
Navy ship to do a complete conversion from R-12  to R-134..  U.S.S. 
Mt. Hood AE-29 out of Concord CA.  
The majority of all refrigerant systems use synthetic O rings including
R-12 and R-134.  R-134 WILL turn a Mineral oil into a substance closely
resembling cottage cheese (R-12 uses mineral oil, flush and change it). 
Presure settings are approximately 5 to 10 PSI higher with 134 vice 12. 
IAW your high side will be 5-10 psi higher (for a H2O cooled unit, adjust
accordingly).  The biggest problem with R-134 is leak detection.  A
conventional leak detector detects Chlorine atoms.  Guess What R-134 has
none.  134 Detectors search for air movement from the leak.

Todd Steele  EPA Certification # V## ##  Date ** &*^ **.  Universal
Technician.

Ozoner sellers: Kiss my greasy, rock scarred, drag in the dust, YOU AIN"T
GETTIN MY CERT NUMBER parts.

If I'm wrong, shoot me or correct me!!!
87 Toyota 4X4, EZ Lockers F/R, 30-11.50-15 TSL SX's, 15X8 AR 26's,
Trailmaster 4"lift,  Ramsey front bumper, Custom Nerfs, Custom rear bumper,
Custom body by Sierra Nevada.

------------------------------

------------------------------

Date: Thu, 10 Jul 1997 20:25:20 -0700
From: "Todd and Terry" 
Subject: R-12, R-134
To: 

I hadn't thought of the hoses but they are probably a synthetic rubber. 
Another difficulty we found with R-134 was it has a extreme solvent affect
on system impurities.  We would do nitrogen pressure testing with no leaks,
run the system for 2-3 days and it would leak like a sieve.  It's a good
product, just a pain to work with on large systems with antiquated Military
tools (made by the lowest bidder).

				Todd
87 Toyota 4X4, EZ Lockers F/R, 30-11.50-15 TSL SX's, 15X8 AR 26's,
Trailmaster 4"lift,  Ramsey front bumper, Custom Nerfs, Custom rear bumper,
Custom body by Sierra Nevada.

------------------------------

------------------------------

Date: Sun, 20 Jul 1997 21:15:32 -0700
From: frebie@juno.com
Subject: Toy4x4 Digest V1 #319
To: Toy4x4@tlca.org

What do you need to convert R12 to R134A. A friend said you can flush the
system  and compressor with kerosine and replace a valve. What valve  and
is the kerosine ok to use to convert this over.

Frebie@juno,com 

------------------------------

------------------------------

Date: Tue, 22 Jul 1997 03:06:01 -0100
From: STEPHEN MURPHY 
Subject: AFTERMARKET AIRCONDITIONING
To: TOY4X4@tlca.org

STEPHEN MURPHY wrote:
> 
> Anybody out there know of a supplier of a R-134a aftermarket
> airconditioning system/package that can be applied to a 1990 4x4 p/u
> with a 22re? I have talked to 2 toyota dealers and have gotten prices
> of $900 and $975 for r-12 systems.

------------------------------

------------------------------

Date: Tue, 22 Jul 1997 10:29:41 -0700
From: "Tommy J. Hebert" 
Subject: AFTERMARKET AIRCONDITIONING
To: "Toy4x4@tlca.org" 

I just purchased a Toyota original A/C for my 90 truck with 134a for
$749.  Call John & Phil's at 1-800-542-1516.  I was really pleased with
their service.

It wasn't too bad to install myself but I would recommend getting the
A/C installation manual from Toyota.  There are lots of little parts.

------------------------------

------------------------------

Date: Tue, 22 Jul 1997 19:27:38 -0700
From: "Don M. West" 
Subject: Aftermarket A/C
To: Toyota 4x4 mailing list 


I just took my truck to an A/C place for R-134 to be installed. I'm getting
a price through the consignment lot where I just bought the truck (94 DX
p/u). $750 for the kit, $300 install.

I don't know who the supplier of the kit is, but the shop is Auto Air &
Radiator in San Carlos (CA).

------------------------------
Date: Thu, 24 Jul 1997 16:08:14 -0400 (EDT)
From: Autoair2@aol.com
To: barney@flowpoint.com
Subject: Re: Retrofit Kit

Barney,

I do have retrofit kits available.  It would cost you $39.75.  This would 
be plus tax and freight.  Thanks

Dale
Parts Manager

Date: Fri, 25 Jul 1997 08:49:27 -0400 (EDT)
From: Autoair2@aol.com
To: barney@flowpoint.com
Subject: Re: Retrofit Kit

Barney,

This includes 8 oz of Ester oil, 3 conversion fittings, a label, and 32 
oz of A/C flush.  This is for R134a.  There are only 2 refrigerants that
you should be using, that is either R12 or R134a, all others are going 
to be a blend and should not be used.  Thanks

Dale
Parts Manager

--------------------

------------------------------

Date: Tue, 26 Aug 1997 19:18:02 -0400
From: Sheldon 
Subject: R12 And Tires???
To: Toy4x4@tlca.org

Hello all I have a commenet and question....
First thing: 
I have been taking an Air Condidtioning Heating course part time and 
learned something very intresting today from a supplier rep.
Some might already know this but I didn't.
If your Air uses R12 which is VERY expensive and you need to replace it, 
you can fill it with a "drop in replacement gas" called R409A. It is 
certified for all R12 applications except Auto???? Wonder why, I suspect 
a conspiricy by auto makers no S*#t! By drop in I mean you don't have to 
vac out your old system and change oil or anything, just take out the R12 
and replace. Only catch besides being non auto approved is you only need 
to fill the system about 85% with R409A what you would do with R12.

Sheldon
83ToY4x4
sgard@flnet.com
http://www.flnet.com/~sgard/

------------------------------

Date: Tue, 26 Aug 1997 21:44:45 -0500
From: Steve Capuano 
Subject: R12 And Tires???
To: Toy4x4@tlca.org

That is not exactly a drop in per se, but damn well close enough.  Freeze 
12 is a direct replacement and you do not have to alter charge, and can 
even mix 12 and Freeze 12.

409A you could not mix the two.


Steve Capuano			1996 Tacoma ext cab V6 4X4
capuano@hypercon.com		31x10.50x15 Wrangler RT/S
Houston, Texas			Rear LockRight  K&N filter
				Dynomax 2.5" cat back  Synthetic all around
NRA lifetime member		Edelbrock headers (en route)

------------------------------