how AC clutch cycles? AC thermostat checking?

[Konstantin Bogach]

I disassemble thermostat cleaned contacts, put back together and now it is
clean 0Ohm. Tested on ice cubes - works right:
0 Ohm when out of ice,  infinity in ice.
Put it back on the car, run 10 min - no cycling.  Disconnected wires -
clutch is off.
Conclusion:  10 min is not enough to cool evaporator to 28-35F at 90F
outside.
AC blows very cold air,  I did not find thermometer to measure.  Hmm.. Maybe
I did not charged system enough.
Is low pressure 30-32 psi is good enough?

Thanks.
Konstantin.


Konstantin Bogach wrote:

> Hi.
> I just finished AC conversion.  The leak I reported 2 days ago was
> probably due to not tight connection at manifold and not tight low side
> shreder valve.  I took 3 cans of R-134A with low side pressure at 30psi
> and refused to take more when I tried to  raise it to 35psi.
>
> Now the problem (may be not):  after 10 min working at 90F outside
> clutch does not cycle.  Does it look normal?
>
> I removed thermostat, hooked up DMM  and it shows 1.3 Ohm.  Shouldn't it
> be short (0 Ohm)?
>
> Thanks.
> Konstantin.
> 200tqa '89  (now with cool air!!!)
> 200tq '89  (will have cool air soon)
> S4 '93  (did not nose anywhere yet, and air is cool.  Wierd!)