Visteon A/C Compressor
VISTEON A/C COMPRESSORREMOVAL
NOTE: The A/C compressor clutch can be serviced in the vehicle. The refrigerant system can remain fully charged during compressor clutch, pulley and bearing assembly or field coil replacement.
1. Disconnect and isolate negative battery cable.
2. Remove the accessory drive belt.
3. Disconnect the engine wire harness from the clutch field coil connector (4).
4. Remove the bolts that secure the A/C compressor (4) to the mounting bracket.
5. Remove the A/C compressor from the mounting bracket and support the compressor while servicing the clutch.
6. Using a strap wrench (1), remove the bolt (2) that secures the clutch plate (3) to the compressor shaft.
NOTE:
- The clutch plate can be removed from the compressor shaft by hand or, if required, pressed off with an 8 x 1.25 mm bolt.
- Clutch plate shim(s) may remain inside the hub of the clutch plate. Be sure to remove all of the shims from inside the hub or from the end of the compressor shaft.
7. Remove the clutch plate and shim(s) from the A/C compressor. If required, install a 8 x 1.25 mm bolt into the center of the clutch plate and turn the bolt clockwise until the clutch plate is completely removed from the A/C compressor.
8. Using snap ring pliers (1), remove the snap ring (2) that secures the pulley and bearing assembly (3) to the front of the A/C compressor (4).
NOTE: The pulley and bearing assembly can be removed from the compressor by hand or, if required, with a two jaw puller.
9. Remove the pulley and bearing assembly (1) from the front of the A/C compressor (2). If required, install a two jaw puller (3) and turn the puller center - bolt clockwise until the pulley and bearing assembly is completely removed.
10. Remove the screw (1) that secures the clutch field coil wire lead bracket (2) to the A/C compressor (3).
11. Using compressor field coil remover (Special Tool 9354 in Kit 9349) (1) and a two jaw puller (2), remove the clutch field coil (3) from the front of the A/C compressor (4).
INSTALLATION
1. Position the A/C clutch field coil (1) squarely onto the front of the A/C compressor (2).
CAUTION: Position the A/C clutch field coil so that the coil positioning tabs and the wire harness lead are oriented in the correct direction. Failure to correctly position the field coil on the A/C compressor will result in field coil damage.
2. Align the field coil positioning tabs to the recessed area at the front of the A/C compressor and install the clutch field coil onto the compressor using a two jaw puller (3), compressor field coil installer (Special Tool 9352 in Kit 9349) (4) and the compressor field coil installer spacer (Special Tool 9353 in Kit 9349) (5).
3. Position the clutch field coil wire lead and bracket (2) to the A/C compressor (3) and install the screw (1) that secures the bracket to the compressor. Tighten the screw to 4 N.m (35 in. lbs.).
4. Align the pulley and bearing assembly (1) squarely onto the front of the A/C compressor (2).
NOTE: A distinct change of sound during the clutch pulley tapping process indicates that the pulley and bearing assembly has bottomed out against the compressor housing.
5. Using clutch pulley installer (Special Tool 9355 in Kit 9349) (3) and a hammer (4), install the pulley and bearing assembly onto the front of the A/C compressor. Tap the installer with a hammer until the pulley and bearing assembly has bottomed against the compressor housing.
CAUTION: If the snap ring is not fully seated in the groove it will vibrate out, resulting in clutch failure and severe damage to the A/C compressor.
NOTE: Install the snap ring with the beveled side of the snap ring facing outward.
6. Using snap ring pliers (1), install the snap ring (2) that secures the pulley and bearing assembly (3) to the front of the A/C compressor (4). Make sure the snap ring is properly seated in the groove.
7. Verify that there is adequate clearance for the clutch field coil wire lead (1) between the housing of the A/C compressor (2) and the pulley and bearing assembly (3).
NOTE: When installing an original or a new clutch assembly, try the original shims first. When installing a clutch onto a compressor that previously did not have a clutch, use the 1.0, 0.50 and 0.13 millimeter (0.040, 0.020 and 0.005 inch) shims from the clutch hardware package which is provided with the new clutch.
8. Install the clutch shims onto the compressor shaft.
9. Using a strap wrench (4), install the bolt (5) that secures the clutch plate (6) to the A/C compressor. Hold the clutch plate stationary with the strapwrench and tighten the bolt to 15 N.m (133 in. lbs.).
10. Using 90 degree wire gauges (1), check the air gap between the clutch plate (2) and the pulley and bearing assembly (3). If the air gap is not 0.35 to 0.65 millimeter (0.014 to 0.025 inch), add or subtract shims as required.
11. Position the A/C compressor onto the mounting bracket.
12. Install the bolts that secure the A/C compressor to the mounting bracket.
13. Connect the engine wire harness to the compressor clutch field coil connector.
14. Install the accessory drive belt.
15. Reconnect the negative battery cable.
16. Perform the Clutch Break-in Procedure. Component Tests and General Diagnostics