Crankshaft Damper

REMOVAL & INSTALLATION

1. Disconnect the negative battery cable.
2. Remove the engine fan/clutch assembly and shroud.
3. Remove the accessory drive belt(s).
4. On those engines with a separate damper and pulley, remove the retaining bolts, then separate the crankshaft damper from the pulley.
5. Remove the pulley-to-crankshaft bolt and washer.

   Fig. 1: If necessary on some engines, assemble a puller to the damper . . .

   Fig. 2: . . . then tighten the center bolt to remove the damper from the crankshaft

   Fig. 3: Loosen the crankshaft pulley center nut by installing a small bolt on the outside of the pulley, using a prybar for holding force and a socket and breaker bar

   Fig. 4: Remove the crankshaft pulley retaining bolt

   Fig. 5: Remove the crankshaft pulley, keep the small bolt in for installation purposes

6. If necessary, use a puller tool to remove the damper/pulley from the crankshaft.
7. If equipped, remove the crankshaft key.

   To install:

   WARNING
   On MPV models equipped with the 3.0L engine, the crankshaft position sensor rotor is on the rear of the damper/pulley and can be easily damaged.

8. Inspect the front cover seal and replace if necessary.
9. On 3.0L (B Series Pick-up) and 4.0L engines, perform the following:
   1. Coat the rubbing surface of the damper/pulley with clean engine oil.
   2. Apply a small amount of RTV sealant to the damper keyway groove.
   3. On the B Series Pick-up with the 3.0L engine, use a crankshaft damper installation tool to press the damper onto the crankshaft. Install and tighten the retaining bolt to 93–121 ft. lbs. (125–165 Nm).

      WARNING
      Never hammer on the damper to install it.

10. Install the crankshaft pulley. Tighten the crankshaft pulley retaining bolt(s) to the following specifications:
    • 4.0L engine: 30–37 ft. lbs. (40–50 Nm), plus an additional 80–90°
    • 3.0L engine (B Series Pick-up): 39–53 ft. lbs. (53–72 Nm)
    • 3.0L engine (MPV): 116–122 ft. lbs. (157–166 Nm)
    • 2.6L engine: 131–144 ft. lbs. (177–196 Nm)
    • 2.3L and 2.5L engines: 93–121 ft. lbs. (125–165 Nm)
11. Install the accessory drive belt(s).
12. Install the engine fan/clutch assembly and the shroud.
13. Connect the negative battery cable. Run the engine and check for oil leaks.