Dodge Durango

 Service Manual

Engine » Removal and installation
Crankshaft oil seal-front

REMOVAL

(1) Disconnect negative cable from battery.

Fig. 124 Oil Pump and Primary Timing Chain Tightening Sequence

Fig. 125 Oil Pressure Sending Unit

1 - BELT

2 - OIL PRESSURE SENSOR

3 - OIL FILTER

4 - ELEC. CONNECTOR

(2) Remove accessory drive belt refer to Group 7, Cooling System for procedure.

(3) Remove A/C compressor mouning fasteners and set aside.

(4) Drain cooling system. Refer to Group 7, Cooling System for procedure.

(5) Remove upper radiator hose.

(6) Using Special Tools 6958 Spanner with Adapter Pins 8346 loosen fan and viscous assembly from water pump (Fig. 126).

(7) Remove fan and viscous assembly.

Fig. 126 Fan Assembly-Removal/Installation

1 - SPECIAL TOOL 6958 SPANNER WRENCH WITH ADAPTER PINS 8346

2 - FAN

(8) Disconnect electrical connector for fan mounted inside radiator shroud.

(9) Remove radiator shroud attaching fasteners.

NOTE: Transmission cooler line snaps into shroud lower right hand corner.

(10) Remove radiator shroud.

(11) Remove crankshaft damper bolt.

(12) Remove damper using Special Tools 8513 Insert and 1026 Three Jaw Puller (Fig. 127).

(13) Using Special Tool 8511, remove crankshaft front seal (Fig. 128).

INSTALLATION

CAUTION: To prevent severe damage to the Crankshaft, Damper or Special Tool 8512, thoroughly clean the damper bore and the crankshaft nose before installing Damper.

(1) Using Special Tool 8348 and 8512, install crankshaft front seal (Fig. 129).

Fig. 127 Crankshaft Damper-Removal

1 - SPECIAL TOOL 8513 INSERT

2 - SPECIAL TOOL 1026

Fig. 128 Crankshaft Front Seal-Removal

1 - SPECIAL TOOL 8511

CAUTION: Special Tool 8512, is assembled in a specific sequence. Failure to assemble this tool in this sequence can result in tool failure and severe damage to either the tool or the crankshaft.

Fig. 129 Crankshaft Front Seal-Installation

1 - TIMING CHAIN COVER

2 - SPECIAL TOOL 8348

3 - SPECIAL TOOL 8512

(2) Assemble Special Tool 8512 as follows, The nut is threaded onto the shaft first. Then the roller bearing is placed onto the threaded rod (The hardened bearing surface of the bearing MUST face the nut).

Then the hardened washer slides onto the threaded rod (Fig. 130). Once assembled coat the threaded rod's threads with Mopart Nickel Anti-Seize or (Loctite No. 771).

(3) Align crankshaft damper slot with key in crankshaft. Slide damper onto crankshaft slightly.

(4) Using Special Tool 8512 press damper onto crankshaft (Fig. 131).

(5) Install then tighten crankshaft damper bolt to 175 N*m (130 ft. lbs.).

(6) Install radiator shroud and tighten fasteners to 11 N*m (95 in. lbs.).

(7) Connect electrical connector for shroud fan.

(8) Install fan and viscous assembly.

(9) Using Special Tools 6958 Spanner with Adapter Pins 8346 tighten fan and viscous assembly to water pump (Fig. 126).

(10) Install upper radiator hose.

(11) Install A/C compressor and tighten fasteners to 54 N*m (40 ft. lbs.).

(12) Install accessory drive belt refer to Group 7, Cooling System for procedure.

(13) Refill cooling system. Refer to Group 7, Cooling System for procedure.

(14) Connect negative cable to battery.

Fig. 130 Proper Assembly Method for Special Tool 8512

1 - BEARING

2 - NUT

3 - THREADED ROD

4 - BEARING HARDENED SURFACE (FACING NUT)

5 - HARDENED WASHER

Fig. 131 Crankshaft Damper-Installation

1 - SPECIAL TOOL 8512

Engine mounts-left and right

Engine mount-rear

Structural cover

Engine assembly

Intake manifold

Exhaust manifolds

Cylinder head cover

Rocker arms

Cylinder heads

Valve springs and seals

Hydraulic lash adjuster

Crankshaft damper

Timing chain cover

Timing chain and sprockets

Idler shaft-timing drive

Camshafts-in vehicle

Crankshaft main bearings

Oil pan 4x2 vehicle

Oil pan 4x4 vehicle

Piston and connecting rod

Crankshaft

Flexplate

Oil pump

Engine oil pressure sending unit

Crankshaft oil seal-front

Crankshaft oil seal-rear

Engine core plugs