Acura RL. Manual - part 583

Fig. 147: Identifying A/C Compressor With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

9. Install the A/C compressor in the reverse order of removal, and note these items:



Inspect the A/C lines for any signs of contamination. Purge the system if necessary before
installing the compressor.



If you're installing a new A/C compressor, you must calculate the amount of refrigerant oil to be
removed from it (see A/C SERVICE TIPS AND PRECAUTIONS ). A new A/C compressor
comes with a full charge of oil.



Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before
installing them. Be sure to use the correct O-rings for HFC-134a (R-134a) to avoid leakage.



Use refrigerant oil (DENSO ND-OIL 8) for HFC-134a DENSO piston type A/C compressor
only.



To avoid contamination, do not return the oil to the container once dispensed, and never mix it
with other refrigerant oils.



Immediately after using the oil, reinstall the cap on the container, and seal it to avoid moisture
absorption.



Do not spill the refrigerant oil on the vehicle; it may damage the paint; if the refrigerant oil
contacts the paint, wash it off immediately.



Be careful not to damage the radiator fins when installing the compressor and the A/C
condenser fan shroud.



Charge the system (see SYSTEM CHARGING ).



Reset the power window control unit (see RESETTING THE POWER WINDOW
CONTROL UNIT ).



Do the steering column position memorization (see STEERING COLUMN POSITION
MEMORIZATION ).



Enter the anti-theft codes for the audio system and the navigation system (if equipped).



Set the clock.

A/C COMPRESSOR CLUTCH CHECK

1. Check the pressure plate for discoloration, peeling, or other damage. If there is damage, replace the

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:43 PM

clutch set (see A/C COMPRESSOR CLUTCH OVERHAUL ).

2. Check the pulley bearing play and drag by rotating the pulley by hand. Replace the clutch set with a

new one if it is noisy or has excessive play/drag (see A/C COMPRESSOR CLUTCH
OVERHAUL ).

Fig. 148: Checking Pulley Bearing Play
Courtesy of AMERICAN HONDA MOTOR CO., INC.

3. Measure the clearance between the pulley (A) and the pressure plate (B) all the way around. If the

clearance is not within specified limits, remove the pressure plate (see A/C COMPRESSOR
CLUTCH OVERHAUL ) and add or remove shims as needed to increase or decrease clearance.

Clearance: 0.26-0.60 mm (0.010-0.024 in.)

Fig. 149: Measuring Clearance Between Pulley And Pressure Plate
Courtesy of AMERICAN HONDA MOTOR CO., INC.

4. Measure the resistance of the field coil. If the resistance is not within specifications, replace the field

coil (see A/C COMPRESSOR CLUTCH OVERHAUL ).

NOTE:

The shims are available in three thicknesses: 0.1 mm, 0.3 mm, and 0.5
mm.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:43 PM

Fig. 150: Measuring Resistance Of Field Coil
Courtesy of AMERICAN HONDA MOTOR CO., INC.

A/C COMPRESSOR CLUTCH OVERHAUL

Special Tools Required

A/C clutch holder, Robin air 10204 or Kent-Moore J37872, or Honda Tool and Equipment KMT-J33939,
commercially available

1. Remove the center bolt while holding the pressure plate (A) with a commercially available A/C clutch

holder (B).

Fig. 151: Identifying A/C Clutch Center Bolt With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.

2. Remove the pressure plate (A) and shim(s) (B), taking care not to lose the shim(s). If the clutch needs

adjustment, increase or decrease the number and thickness of shims as necessary, then reinstall the
pressure plate, and recheck its clearance (see A/C COMPRESSOR CLUTCH CHECK ).

NOTE:

The shims are available in three thicknesses: 0.1 mm, 0.3 mm, and 0.5
mm.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:43 PM

Fig. 152: Identifying Pressure Plate And Shim
Courtesy of AMERICAN HONDA MOTOR CO., INC.

3. If you are replacing the field coil, remove the snap ring (A) with snap ring pliers, then remove the

pulley (B). Be careful not to damage the pulley or the A/C compressor.

Fig. 153: Identifying Snap Ring And Pulley
Courtesy of AMERICAN HONDA MOTOR CO., INC.

4. Remove the screw from the field coil ground terminal (A) and bracket (B). Disconnect the connectors

(C) from the field coil and variable capacity control solenoid valve, then remove the wire harness (D).
Remove the snap ring (E) with snap ring pliers, then remove the field coil (F). Be careful not to
damage the field coil or the A/C compressor.

2007 Acura RL

2005-08 HVAC HVAC - RL

Friday, June 05, 2009 2:25:43 PM

Content .. 581 582 583 584 ..