REMOVAL AND INSTALLATION

Removal steps >>D<< 1. Oil seal >>E<< 2. Oil seal case >>C<< 3. Bearing cap bolt >>C<< 4. Bearing cap >>B<< 5. Crankshaft bearing, lower 6. Crankshaft >>B<< 7. Crankshaft bearing, upper >>A<< 8. Crankshaft thrust bearing 9. Cylinder block

2.Each thrust bearing must be installed with the grooved side toward the crankshaft web.

1.Location of crankshaft journal diameter marks. <Bearing selection example> If the crankshaft journal diameter mark is "0" and the cylinder block bearing bore mark is "1," then select a bearing with a "2" or "Yellow" mark/colour as the No. 1, 2, 4 or 5 bearing and a bearing with a "1" or "Green" mark/colour as the No. 3 bearing. If the crankshaft journal diameter mark is illegible, measure the journal diameter and select a bearing with the mark corresponding to the measurement.

2.The diameter identification marks of the bearing bores in the cylinder block are stamped in the location shown in the drawing. Crankshaft journal diameter Cylinder block bearing bore mark Crankshaft bearing mark or colour Identification mark Journal diameter measurement mm No. 1, 2, 4 and 5 No. 3 0 56.994 - 57.000 0 1 or Green 0 or Black 1 2 or Yellow 1 or Green 2 3 or None 2 or Yellow 1 56.988 - 56.994 0 2 or Yellow 1 or Green 1 3 or None 2 or Yellow 2 4 or Blue 3 or None 2 56.982 - 56.988 0 3 or None 2 or Yellow 1 4 or Blue 3 or None 2 5 or Red 4 or Blue

3.The size mark/colour of each crankshaft bearing is indicated by ink in the location shown in the drawing.

4.Install bearing halves with oil grooves in the cylinder block bearing bores. 5.Install bearing halves with no oil grooves in the beam bearing cap.

2.Measure the nominal length (shank length) of each bearing cap bolt before installation. If the measurement exceeds the limit, replace the bolt. Standard value: 69.85 - 70.55 mm 3.Apply engine oil to the threads and bearing surface of the bolt.

4.Tighten the bolts to 24.5 ± 2.0 N·m in the indicated sequence. 5.Make a paint mark on the head of each bolt. 6.Make a paint mark on the bearing cap at a point 90° away in the tightening direction from the paint mark made on the bolt head.

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. 7.Turn clockwise the bolts 90° in the indicated tightening sequence to bring the mark on each bolt head into alignment with that on the bearing cap.

8.After installing the bearing caps, measure the axial play of the crankshaft. If the axial play exceeds the limit, replace the crankshaft bearings. Standard value: 0.05 - 0.25 mm Limit: 0.40 mm

Use the special tools to install the rear oil seal. Handle (MB990938) Crankshaft rear oil seal installer (MD998776)

1.Apply a bead of FIPG to the surface of the rear oil seal case as shown in the drawing. Specified sealant: Three bond 1207F or equivalent 2.Install the oil seal into the cylinder block after applying an appropriate amount of engine oil to the entire circumference of its lip portion.