Nissan Sentra/Pulsar/NX 1982-1996 Repair Guide

Crankshaft Damper

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REMOVAL & INSTALLATION



See Figures 1, 2, 3, 4 and 5



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Fig. Fig. 1: Loosening the crankshaft pulley



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Fig. Fig. 2: Removing the crankshaft pulley



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Fig. Fig. 3: Align the keyway when installing the crankshaft pulley



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Fig. Fig. 4: Using a puller to remove the front damper or crankshaft pulley



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Fig. Fig. 5: Crankshaft pulley damper and cover assembly

To remove the crankshaft damper or pulley usually requires a puller. Before proceeding you should check if there is enough clearance in front of the pulley to install the puller. If there is not enough clearance for the puller, you need to remove the engine. Review engine removal steps before proceeding as necessary. The following procedures are for the models that have sufficient clearance for the puller to be used.

  1. Disconnect the negative (-) battery cable.
  2.  
  3. Loosen and remove the accessory drive belts.
  4.  
  5. Remove the belt pulleys from the damper, if so equipped.
  6.  
  7. Remove the large center bolt.
  8.  
  9. Using a crankshaft damper puller or equivalent, remove the damper from the crankshaft. Do not use a jaw puller on the damper. The outer ring will be pulled from the inner portion. Replace the damper if this the case.
  10.  
  11. Remove the key way if loose. Be careful not to damage the oil seal.
  12.  
  13. Inspect the oil sealing surface. If a deep grove is present, replace or recondition the damper. Check with the local machine shop to see if a repair sleeve is available.
  14.  

To install:
  1. Install the key way and make sure it is seated properly.
  2.  
  3. Install the damper and bolt. Torque the bolt to the following specifications:

    1982 E15- 108-145 ft. lbs. (147-197 Nm)
     
    1983-88 E15 and E16- 83-108 ft. lbs. (133-147 Nm)
     
    CD17 diesel- 90-98 ft. lbs. (122-133 Nm)
     
    CA16DE and CA18DE- 105-112 ft. lbs. (143-152 Nm)
     
    GA16i- 132-152 ft. lbs. (180-207 Nm)
     
    GA16DE- 98-112 ft. lbs. (133-152 Nm)
     
    SR20DE-105-122 ft. lbs. (143-166 Nm)
     

  4.  
  5. Install the belt pulleys, drive belts and connect the battery cable.
  6.  
  7. Start the engine and check for leaks.
  8.  

 
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