Front Crankshaft Seal: Service and Repair

REMOVAL AND INSTALLATION









- MB991883: Flywheel Stopper

- MD998718: Crankshaft Rear Oil Seal Installer

- MB991448: Bush Remover and Installer Base

REMOVAL SERVICE POINT

[[A]] DRIVE PLATE BOLTS REMOVAL





Fix the drive plate using special tool MB991883, and loosen the drive plate bolts.

INSTALLATION SERVICE POINTS

]]A[[ CRANKSHAFT REAR OIL SEAL INSTALLATION

1. Apply a small amount of engine oil to the entire inner diameter of the oil seal lip.





2. Using special tool MD998718, press in the crankshaft rear oil seal up to the cylinder block assembly end surface.

]]B[[ DRIVE PLATE/ADAPTER PLATE/DRIVE PLATE BOLTS INSTALLATION

1. Remove the sealant, the engine oil, and other adhering materials from the drive plate and adapter plate installation face, the crankshaft screw hole and drive plate bolts.

2. Install the drive plate and adapter plate to the crankshaft.





3. Use special tool MB991883 to secure the drive plate and adapter plate in the same manner as removal.
4. Apply a small amount of engine oil to the screw holes of the crankshaft and the bearing surface of the drive plate bolts and the adapter plate bolts.





5. Apply sealant to the thread of the drive plate bolts.
6. Apply specified sealant to the drive plate bolts.
Specified sealant: ThreeBond 1324






7. Tighten drive plate bolts to specified torque in the order shown in the illustration.
Tightening torque: 40 Nm (30 ft-lb)
8. Tighten drive plate bolts to specified torque in the order shown in the illustration.
Tightening torque: 130 Nm (96 ft-lb)


]]C[[ CRANKSHAFT FRONT OIL SEAL INSTALLATION

1. Apply a small amount of engine oil to the entire inner diameter of the oil seal lip.





2.
CAUTION:
When installing the crankshaft front oil seal, be careful to avoid damage to the crankshaft front oil seal.

Using special tool MB991448, press in the crankshaft front oil seal up to the chamfered surface of timing chain case.