[DML] Re: Third Party A/C Techs

["content22207" <brobertson@xxxxxxxxxxxx>]

Even if I could find a third party A/C tech willing to touch the car,
would not be cost effective for me to pay for work on my system as is. 
Has a leak somewhere on the high side (loses 1 can static over the
winter but loses that same can after only a couple days of
refrigeration). Suspect it's in the area of the accumulator because
there's no observable oil at the condensor or compressor. One of these
days I'll pull the passenger wheel to investigate. Probably a dried
out O ring. Am *EXTREMELY* leery of opening rusty old A/C fittings --
some tubing is surprisingly thin walled. Stress fractures very easily.
Lost a condensor in one of my Lincolns once trying to replace its O
rings. Is sometimes the better part of valor simply to top off the freon. 

I have 6 auto A/C systems, the *NEWEST* of which is 23 years old. All
work, but with varying degrees of tightness. Surprisingly, one of the
tightest is running a low side hose from a 1972 Galaxy (disproving the
"R134 leaks through pores of old rubber" theory). DeLo falls in the
"not tight" category, probably because it spent most of its life
languishing under a tree. 

Re: third party A/C techs recognizing similarity of DeLo system -- at
least it is GM style, now emulated by Ford. Throughout the 1970's Ford
used a "suction throttling valve" to meter the freon from the low side
rather than an orifice of whatever sort on the high side (works and
ages much better BTW, plus the compressor never cycles). Scares
contemporary A/C techs worse than seeing a DeLo pull into the parking
lot. 

Bill Robertson
#5939

>--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx> wrote:
> I didn't mean to say you were actually putting a combustable mixture
> into your A/C system, I was only giving an example of a device that
> when used is inherently unsafe. Just because things are for sale does
> not always mean they are safe,



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