Removal and Installation
REMOVAL AND INSTALLATION
Required Special Tools:
- MB992075: Handle
- MB992183: Crankshaft Rear Oil Seal Installer
- MD998781: Flywheel Stopper
REMOVAL SERVICE POINT
[[A]] DRIVE PLATE BOLT REMOVAL
1. Using special tool MD998781, hold the drive plate.
2. Remove the drive plate bolt.
INSTALLATION SERVICE POINTS
]]A[[ CRANKSHAFT SENSING RING INSTALLATION
1. Apply the engine oil to the thread portions and the sealed portions on the installation bolts.
2. In accordance with the tightening order shown in the illustration, tighten the crankshaft sensing ring to the specified torque.
Tightening torque: 12 ± 2 Nm (106 ± 17 in-lb)
]]B[[ CRANKSHAFT BEARING UPPER INSTALLATION
1. If the upper crankshaft bearing is replaced, select based on the identification mark of cylinder block (illustrated) and the table shown below.
2. The upper crankshaft bearing has the identification mark on the location shown in the illustration.
3. Install the upper selected crankshaft bearing.
]]C[[ CRANKSHAFT THRUST BEARING INSTALLATION
1. Install the thrust bearing in the Number3 bearing bore in the cylinder block and in the bearing cap. For easier installation, apply engine oil to the bearings; this will help hold them in position.
2. The thrust bearings must be installed with their groove toward the crankshaft web.
]]D[[ CRANKSHAFT BEARING LOWER INSTALLATION
1. If the lower crankshaft bearing is replaced, select based on the identification mark of crankshaft (illustrated) and the table shown below.
2. The lower crankshaft bearing has the identification mark on the location shown in the illustration.
3. Install the lower selected crankshaft bearing.
]]E[[ BEARING CAP / BEARING CAP BOLT INSTALLATION
1. Before installing the bearing cap bolt, check the bolt screw head is not damaged. If the screw head extremely gets damaged, replace it with a new bolt. The standard length of the new bolt measured from under the head is as follows:
Standard value: 91.2 - 92.2 mm (3.59 - 3.63 inches)
2. Attach the bearing cap on the cylinder block as shown in the illustration.
3. Tighten the bearing cap bolts to specified torque in the sequence shown in the illustration.
Tightening torque: 24 ± 2 Nm (18 ± 1 ft-lb)
4. Make a paint mark on the head of each bolt.
5.
CAUTION:
- When the tightening angle is smaller than the specified tightening angle, the appropriate tightening capacity cannot be secured.
- When the tightening angle is larger than the specified tightening angle, remove the bolt to start from the beginning again according to the procedure.
Make a paint mark on the bearing cap 90 degrees from the paint mark made on the bolt, in the direction of tightening the bolt.
6. Turn each bolt 90 degrees in the tightening sequence specified in step 2, and make sure that the paint marks on the bolt and cap are aligned.
7. Check that the crankshaft rotates smoothly.
8. Check the end play. If it exceeds the limit value, replace the thrust bearing.
Standard value: 0.05 - 0.25 mm (0.002 - 0.009 inch)
Limit: 0.3 mm (0.01 inch)
]]F[[ CRANKSHAFT REAR OIL SEAL INSTALLATION
Using special tools MB992075 and MB992183, press-fit a new crankshaft rear oil seal into the oil seal case.
NOTE:
Put the edge position in place as shown in the illustration.
]]G[[ OIL SEAL CASE INSTALLATION
1. Apply a 2.5 ± 0.5 mm (0.10 ± 0.01 inch) diameter bead of sealant (Three bond 1217G or exact equivalent) to the oil seal case.
2. Apply a small amount of engine oil to the entire circumference of the oil seal lip section, and place the oil seal case on the cylinder block.
NOTE:
Install the oil seal case within 15 minutes after applying liquid gasket.
NOTE:
Then wait at least one hour. Never start the engine or let engine oil or coolant touch the adhesion surface during that time.
]]H[[ DRIVE PLATE BOLT INSTALLATION
1. Cleanly remove sealant, oil and dust on the drive plate bolt, the drive plate and the threaded portions of the crankshaft.
2. Apply oil to the drive plate and the seating surface of the drive plate bolt.
3. Apply oil to the threaded hole of the crankshaft
4. Apply sealant (Three bond 1324 or equivalent) to the thread portions of the drive plate bolt.
5. Using special tool MD998781, hold the drive plate.
6. Tighten the drive plate bolt to the specified torque.
Tightening torque: 76 ± 4 Nm (57 ± 2 ft-lb)