AC York Compressor Clutch Acting Up!!!

[Mark Rosenkrantz]

Huw is absolutely correct... a good modern machine is in the $4500. range.
But it's hook up, hit some buttons, and walk away.

Mark

On Mon, Mar 19, 2012 at 9:51 PM, Huw Powell <audi at humanspeakers.com> wrote:

> But with a modern AC machine that's trivial to do - an hour, mostly
> unattended.  And dye goes in with the correct recharge, so the leaking
> component can be identified for replacement estimates.
>
> On 3/19/2012 9:42 PM, Mark Rosenkrantz wrote:
>
>> There are 2 ways to do it correctly.  One is with guages hooked to both
>> the low pressure and high pressure ports.  This is standard on most
>> cars.  VAG only has one port (officially, but some cars can have a port
>> attached at the compressor for high pressure) and the only way to charge
>> a stock car is to completely evacuate the system and then fill with a
>> measured amount.  Both under charging and overcharging is poor for
>> performance as well as the compressor itself.
>> I think this is STUPID as there's no way to "top off" a system after
>> years of service (IMHO, all systems leak a little over time).  For
>> example, my Escalade needed topped off after about 6 years.  Just a
>> little, but it was needed.  Nothing "wrong" with the truck.  VAG's
>> procedure would have been a full evacuation and recharge from a scale.
>> Mark Rosenkrantz
>>
>> On Mon, Mar 19, 2012 at 8:30 PM, Bill Green <wgreen56 at tampabay.rr.com
>> <mailto:wgreen56 at tampabay.rr.**com <wgreen56 at tampabay.rr.com>>> wrote:
>>
>>    Maybe so I'm no professional that's for sure. My only experience is
>>    with my
>>    own cars. I have a set of gauges I use because there's no way for me to
>>    monitor how many ounces are actually in a system, whereas I can always
>>    monitor pressure to let me know if the system is fully charged.
>>
>>
>>
>>    -----Original Message-----
>>    From: Huw Powell [mailto:audi at humanspeakers.com
>>    <mailto:audi at humanspeakers.com**>]
>>    Sent: Monday, March 19, 2012 9:56 AM
>>    To: Bill Green
>>    Cc: quattro at audifans.com <mailto:quattro at audifans.com>
>>    Subject: Re: AC York Compressor Clutch Acting Up!!!
>>
>>    I thought AC charges were supposed to be measured to spec, like, say,
>> 20
>>    ounces of refrigerant?
>>
>>    On 3/19/2012 6:35 AM, Bill Green wrote:
>>     > "I guess I wasn't clear... I meant under what conditions is it
>>     > *supposed* to turn itself off (like high engine temps?)."
>>     >
>>     >
>>     >
>>     > It is designed to turn itself off when under-pressurized or
>>     > over-pressurized. Maybe you do not yet have enough R134a in system?
>>     > Possibly the pressure only rises enough when above 1500 rpm? Just
>>    a guess
>>    really.
>>     > Maybe you should buy or borrow a set of gauges to monitor the
>>    pressure
>>     > as you charge it.
>>
>