Compressor Clutch Plate/Hub Assembly Install (V7 - Direct Mount)

Tools Required

• J 33013-B  Hub and Drive Plate Remover/Installer. See Special Tools and Equipment .
• J 33017  Pulley and Bearing Assembly Installer. See Special Tools and Equipment .
• J 33027-A  Clutch Hub Holding Tool. See Special Tools and Equipment .

Fig 1: Hub Key Groove, Clutch Plate, Clutch Rotor & A/C Compressor Shaft
Courtesy of GENERAL MOTORS CORP.
1. Install the shaft key into the hub key groove (4) approximately 3.2 mm (1/8 in) out of the keyway.

   The shaft key is curved slightly to provide an interference fit in the hub key groove.

2. Clean the surfaces of the clutch plate (1) and the clutch rotor (2) before installing the clutch plate and hub assembly.
3. Align the shaft key with the shaft keyway in the clutch plate and the hub assembly and place onto the A/C compressor shaft (3).
Fig 2: J 33013-B, Clutch Plate & Hub Assembly
Courtesy of GENERAL MOTORS CORP.
4. Remove the J 33013-B  . See Special Tools and Equipment .
   1. Remove the center screw from the body of the J 33013-B  . See Special Tools and Equipment .
   2. Install the center screw into the opposite end of the J 33013-B  . See Special Tools and Equipment .
5. Install the J 33013-B  and bearing tools (1) onto the clutch plate (3) and the hub assembly (2). See Special Tools and Equipment .
   1. Back the body of the J 33013-B  off enough to allow the center screw to be threaded onto the end of the A/C compressor shaft. See Special Tools and Equipment .
   2. Thread the center screw several turns onto the end of the A/C compressor shaft.

      Do not tighten the center screw on the A/C compressor shaft.

6. Hold the center screw with a wrench.
   1. Tighten the hex portion of the J 33013-B  body several turns. See Special Tools and Equipment .
   2. Remove the J 33013-B  from the clutch plate and hub. See Special Tools and Equipment .
   3. Make sure that the shaft key is still in place in the keyway.
7. Reinstall the J 33013-B  . See Special Tools and Equipment .
Fig 3: View Of Air Gap Between Pulley And Drive Plate
Courtesy of GENERAL MOTORS CORP.
8. Place a feeler gage between the clutch plate and the clutch rotor.
IMPORTANT: Make sure that the air gap is even all around the clutch plate and hub assembly.
9. Tighten the hex portion of the J 33013-B  until the air gap between the clutch plate and clutch rotor is 0. See Special Tools and Equipment .40 mm (0.015 in).
Fig 4: Clutch Hub, Drive Plate Assembly, J 33027-A & J 41790
Courtesy of GENERAL MOTORS CORP.
10. Remove the J 33013-B  . See Special Tools and Equipment .
11. Hold the clutch plate and hub assembly (2) with the J 33027-A  . See Special Tools and Equipment .
NOTE: Refer to Fastener Notice in Cautions and Notices.
12. Install the A/C compressor shaft nut.

    Tighten:  Tighten the nut to 17.5 N.m (13 lb ft).

13. Spin the pulley rotor by hand to make sure the rotor is not rubbing against the clutch drive plate.
14. Remove the A/C compressor from the J 41790-A  . See Special Tools and Equipment .
15. Install the A/C compressor into the vehicle.