Re: [Chrysler300] a/c compressor/bearing

[Marshall Larson <granitledge@xxxxxxxxx>]

As you may have determined there is a large bearing inside the pulley that
is in use 100% of the time the engine is running and belts are in place.
it is not an idler as it performs no belt tightening function.  The bearing
is mounted onto the snout of the conpressor housing.  The clutch disk is
mounted to the crankshaft of the compressor and is forced to turn only
when a current is passed throught the clutch coil.  No current, no clutdh
engagement, no compressor function.

The pulley is driven by the belts and will turn with very little Resistance
when the engine is running.  If it does not turn with the belts or you
can't turn it by hand when the belts are removed, it's bearing has seized
and must be replaced.

The pulley and it's integral bearing are a friction fit to the compressor's
snout and are held in place by a C clip at the center of the inner bearing
race.  Remove the pulley assembly, press out the bad bearing, press in a
new bearing and reassemble to the compressor.  Reassemble the clutch disk
and it's key to the compressor shaft.  Use the nut or the bolt to move the
clutch toward the face of the pulley carefully as there must be an air gap
between the clutch disk and the face of the pulley when properly
reassembled.  The two surfaces will never touch until a current is
introduced to the coil.  Find the specification for the air gap and be
careful to not deflect the disk while setting it.  The specification will
likely be in the .004 to .010 range.

_,_.___
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>                          <jsnowosacki@xxxxxxxxx?subject=Re%3A%20a%2Fc%20compressor%2Fbearing>
>               <Chrysler300@xxxxxxxxxxxxxxx?subject=Re%3A%20a%2Fc%20compressor%2Fbearing> S
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-- 
*Marshall Larson*


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