Did you try making up a mix of soapy water and spraying in on the connections,etc.?

Sometimes the oldest tricks work best.

Steve

On May 8, 2013, at 4:15 PM, JRodgers wrote:

> Eric, this thing got the full migillah. New seals, new expansion
> valve,filter, vacuum check, flush,oil, and R134a. I'm sure I have a tiny
> leak somewhere - just how to get at it without tearing it apart again -
> that's my goal.
> 
> John
> 
> On 5/8/2013 5:56 AM, Eric Ley wrote:
>> The use of sealant in A/C systems, There are two types of sealants used in
>> A/C systems one is a thinner (conditioner) which makes the seals expand
>> they
>> eventually dry out and leak twice as bad. The other type is a gel that
>> hardens in the presence of oxygen it will fill holes and cracks even in the
>> condenser or evaporator, did you do a 100% full vacuum on you're A/C system
>> to insure there is no oxygen in the system if your get in a accident and
>> the
>> system is exposed to oxygen it is scrap...... Your choice but if you take
>> the time to properly find the leak and repair you will save the most in the
>> end.
>> 
>> Eric Ley
>> Garage Mechanic ELM
>> 2001 Demers Franklin, Qc
>> 
>> --------------------------------------------------
>> From: "JRodgers" <jrodgers113@GMAIL.COM>
>> Sent: Wednesday, May 08, 2013 6:19 AM
>> To: <vanagon@GERRY.VANAGON.COM>
>> Subject:      Re: AC 134a refrigerant leak down
>> 
>>> Good stuff to know about. When the system was overhauled - the system
>>> was upgraded from R-12 to R134a with a kit from Van-Cafe that had all
>>> tht newer type seals. The thing didn't leak a drop from months,, then it
>>> started slowly losing it's cool - so to speak. Then I tarted adding a
>>> can of 134a once in a while. But I would like to stop that - and was
>>> hoping the sealant would do the trick.  Next time I add some I will use
>>> a type with sealant and dye.
>>> 
>>> Thanks,
>>> 
>>> John
>>> 
>>> On 5/7/2013 9:23 PM, Tom Hargrave wrote:
>>>> Yep, that's why you replace the O-ring seals with less porous seals.
>>>> They
>>>> used to also replace the rubber hoses for the same reason until the AC
>>>> community "discovered" that once the old hoses were soaked with
>>>> refrigerant
>>>> oil they sealed themselves tight enough to hold R134a. But the front
>>>> compressor seal is never replaced & often they will leak enough R134a to
>>>> pass a can or more / month.
>>>> 
>>>> Thanks, Tom Hargrave
>>>> www.stir-plate.com
>>>> www.towercooler.com
>>>> www.kegkits.com
>>>> www.grow-sun.com
>>>> 
>>>> 
>>> 
>> .
>>