Re: [DML] Re: AC compressor rework

["Tom Niemczewski" <dmctom@xxxxxxxxx>]

John

To some of the 'metric guys' "oz" might be a bit confusing :)

6fl oz => 177.5ml (compressor)
2fl oz => 59.1ml (rest of system)
------------------------
8fl oz => 236.6ml total


Tom Niemczewski - 100% metric ;)
vin 6149 (in Poland!)
Google earth: 52°25'17.30"N 21° 1'58.00"E
dmctom@xxxxxxxxx
www.deloreana.com



----- Original Message ----- 
From: "John Hervey" <john@xxxxxxxxxxxxxxxx>
To: <dmcnews@xxxxxxxxxxxxxxx>
Sent: Sunday, June 17, 2007 5:33 PM
Subject: RE: [DML] Re: AC compressor rework


> Tom, Compressor holds 6 oz from factory and with the long hoses you add 2
> more oz's. If you drain the compressor you will see how much to put back 
> but
> don't go over 6 oz. Normally 2 oz stay in all the other parts. 8oz total 
> in
> the whole system.
> John Hervey
> www.specialtauto.com
> www.deloreanautoparts.com
> http://www.specialtauto.com/delorean-parts/images/compressor-oil.jpg
>
>
>
>
> -----Original Message-----
> From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf 
> Of
> Tom Tait
> Sent: Friday, June 15, 2007 7:10 PM
> To: dmcnews@xxxxxxxxxxxxxxx
> Subject: RE: [DML] Re: AC compressor rework
>
> Ahh yes - I did mean a stock orifice tube, not expansion or VOV.
>
>
>
> I am also taking your advice on the compressor,  it ain't broke so...
> Thanks for the kick to the forehead there.
>
>
>
> I do have the tools (not the compressor ones, but that is moot)
> including a proper vacuum pump, manifold, gauges, etc.
>
>
>
> I've purchased a small stash of R12 (I have the IMACA license) and will
> attempt to "donate' the Freeze12 properly when I initially evacuate the
> system, but I know it has a blend of old R12 and freeze12 in there right
> now so I'm not optimistic that I'll find any takers there, no one wants
> cross contaminated gasses.  I'll likely get an old spare tank, vacuum it
> down and pump the gas into it and save it till the next hazardous waste
> turn in day.
>
>
>
> My intention for flushing was dual fold though,  certainly there may be
> contamination, but also I have no real idea how much oil is really in
> the system today,  much less how much more I will need to add when I
> replace one hose, a hub and the accumulator,  so I thought I'd punt -
> flush and refill.  What's your advice there?
>
>
>
>
>
> ________________________________
>
> From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf
> Of David Teitelbaum
> Sent: Friday, June 15, 2007 6:54 AM
> To: dmcnews@xxxxxxxxxxxxxxx
> Subject: [DML] Re: AC compressor rework
>
>
>
> I understand your plan better now but I disagree with some of it. I
> agree that you should replace the condenser hose. Once you remove it
> you will be able to tell how contaminated your system is. I also agree
> that you should replace the accumulator. Your system does not have an
> expansion valve. It uses an "Orifice Tube" unless it has been modified
> from stock. If the system is contaminated you should replace it. I
> still disagree with replacing the compressor. The oil should be
> removed and replaced but if it is working (and you say it is) and not
> making bad noises, it is probably fine. If you are staying with R-12
> you probably do not need to change any of the other hoses. Pressure
> test the system and when you refill add leak dye. If you really want
> to get the most out of the system use coil cleaner on the evap and
> cond coil on the outside fins and tubing. It is taking a big chance
> using parts tht are not "right" for the car. Just because a compressor
> may look like it is correct on the outside, inside it can be very
> different. At least the compressor that is on the car now is correct.
> You say it is working so if the only reason you are changing it is
> because you can get another one cheap, but has to be modified, I fail
> to see the logic.
> If you do not have the proper tools, a vacuum pump, gauges, tools,
> etc, you should not be messing with the refrigerent. Do the mechanical
> work and then take it to a shop for the testing, vacuuming, and
> charging. A proper vacuum pump that can get into the micron range is
> expensive but you cannot do good work without it. An A/C system should
> only be "flushed" if it is contaminated. Usually done with R-11 or
> nitrogen.
> David Teitelbaum
> vin 10757
>
> [moderator snip]
>
>
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