--- In diesel_mercedes@yahoogroups.com, "Nate" <vwnate1@...> wrote:
>
>
> Understood .
>
> Has anyone yet found the correct amount of R134a to use in a R-12 system ? . like I said , once you know the <magic> pressure , it makes the old typ system work pretty well .
>
> Ask him if he knows where to get R-12 , then consider buying an AC flushing kit from Harbor Freight , a new expansion valve and some Esther Oil (Pep Boys oddly enough) and flushing it before installing the new expansion valve and Esther Oil before having him evacuate & re charge it with the R-12.....
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> I bet you can find it in the local Auto Swaps if you try , just KEEP YOUR MOUTH SHUT and don't wave it around once you have it ~ slip it in a bag and slink off happy .
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> Can you find " Freeze - 12 " locally ? . it's an R-12 substitute .
>
> -Nate
My mechanic guy checked my '85 300 SD and said it was already switched over. I didn't ask what exactly was changed, but he pumped it down, added 134, and it is working very well now. I also neglected to ask what amount of 134 he added. Want me to find out?
Sid, near Niagara Falls (NY)
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