[DML] Re: Air Conditioning

["endotex23" <endotex23@xxxxxxxxx>]

--- In dmcnews@xxxxxxxxxxxxxxx, "David Teitelbaum" <jtrealty@xxxx>
wrote:


A very good post on A/C David. You must be 609 or 608 certified. If
not you should get it.

Not much I could add except it's not all that difficult for a DIYer as
long as they (as you stated) do it right the first time. I suppose the
cost effectivness would depend on how many cars one has to deal with.
In my case I just buy 30 pounders. It lasts me (and all the "friends"
who show up after they learn I'm certified) years. I charge them
enough to cover to replace the R12 at bulk costs. 

It beats going to some auto store and getting those ever shrinking
cans. What are they down to now? 12 ounces? Jeez, their as bad as
candy bars and coffee. Plus you can avoid the kid at the counter
puffing up and saying you need a license to buy it when you're simply
asking the price. I tell them I never knew I had to have a license in
order to find out what I was going to pay before I bought something. 

Like you, I'm against 134 conversions (using R12 components) and
definately against drop-ins even when they're legal (many aren't).
Some morons out there have even used propane or butane. And many shops
won't even touch conversions because they'll have to ID what's in
there and don't want to risk trashing their reclaim/recycle unit.

Just a few notes: without a flush he should take into consideration
oil remaining throughout the system and adjust for it during refill.
And did you mention he should change the dryer? I also recommend he
ditch the FOV and switch to a variable orifice. or at minimum replace
the stock one when the system is opened.

Otherwise you're spot on in every respect. Frankly, pulling it all
apart and doing it 100% right is the way to go imho. That way you can
forget about it. Barrier hoses are also a good investment if one is
going to do the entire system and plans on keeping the car for a long
time. A pain yes, but a worthwhile improvment.

And whatever he does, I hope he doesn't use the engine to evac the
system. Some people advocate doing that that you know. Good grief.
They need to learn why it's so difficult to pump water vapor.

G








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