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Clutch Coil & Shaft Seal: Installation

  1. To install shaft seal, ensure front housing is free of foreign objects. Lubricate Shaft Seal Protector (MB991459) and place over compressor shaft. Lubricate shaft seal and install using shaft seal remover/installer. Remove shaft seal protector.
  2. Using a 21-mm socket or Drift (MB991301), carefully press bearing onto compressor shaft. Install clutch coil so that alignment pin is engaged. Install clutch coil snap ring with tapered side facing out.
  3. Align armature plate with crankshaft spline. Tighten shaft nut to 12 ft. lbs. (16 N.m). Using feeler gauge, ensure air gap between pressure plate and pulley is 0.012-0.020" (0.3-0.5 mm) on Diamante, Mirage, and 2.4L engine equipped Eclipse and Galant; 0.016-0.024" (0.4-0.6 mm) on all other models. If air gap is incorrect, add or remove shim(s) as necessary.
Fig 1: Exploded View Of Compressor (Sanden MSC105 Scroll Shown; MSC90C Is Similar)
G95D60841Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Exploded View Of Compressor (Sanden Scroll)
G95E60842Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002


  1. To install, reverse removal procedure. Align lug on clutch coil with hole in compressor. Install snap ring with chamfered side facing out. Position pulley squarely over coil. Using Hub Guide (07945-6920500), press pulley onto compressor boss. Maximum press load is 5690 psi (400 kg/cm2 ) or 882 lbs. (400 kg).
  2. Tighten shaft nut to 13 ft. lbs. (18 N.m). Using feeler gauge, ensure air gap between pressure plate and pulley is 0.014-0.026" (0.35-0.65 mm). If air gap is incorrect, add or remove shim(s) as necessary.
NOTE: If shaft seal leaks, replace compressor.


  1. To install, reverse removal procedure. Align lug on clutch coil with hole in compressor. Install snap ring with chamfered side facing out. Position pulley squarely over coil. Ensure compressor boss and inside area of pulley bearing are clean and free of foreign material. Using Pulley Installer (49-G032-311), press pulley onto compressor boss.
  2. Tighten compressor shaft nut to 14 ft. lbs. (19 N.m). Using feeler gauge, ensure air gap between clutch pressure plate and pulley is 0.014-0.025" (0.35-0.65 mm). If air gap is incorrect, add or remove shim(s) as necessary.