Measuring the end play of the crankshaft
1. Install a dial indicator on the end of the crankshaft.
2. Carefully move the crankshaft back and forth in the longitudinal direction, measuring the axial play with a dial indicator.
3. The value of the axial play of the crankshaft must not exceed the set value (see section «Service data and specification» at the end of the chapter).
4. If the obtained value of axial play exceeds the allowable rate, check the thrust half rings and adjacent surfaces of the crankshaft for wear and / or excessive runout.
5. Replace thrust washers or crankshaft.
Removing
1. Loosen the crankshaft main bearing cap bolts in the sequence shown in the figure.
2. Completely unscrew the 10 crankshaft main bearing cap bolts (1, 2).
3. Remove 5 crankshaft main bearing caps (3).
4. Using both hands, pull the crankshaft up out of the cylinder block.
5. Place the crankshaft on wooden blocks.
6. Prepare a sheet of cardboard or similar material numbered 1 to 5 to identify the main bearing shells. Liner numbering starts at the front of the engine.
7. Remove 10 main bearing shells (4) from the cylinder block and main bearing caps. Mark the position of the thrust half rings.
8. Place the main bearing shells on the prepared numbered sheet in the correct order.
9. Remove three bolts (2) and remove the impulse disk (1) crankshaft speed sensor.
Installation
1. Install impulse drive (1) crankshaft speed sensor and tighten the mounting bolts (2) torque 12 Nm.
2. Clean all surfaces of the crankcase with a lint-free cloth.
Note. If crown bearing shells have been used on an engine that has run out, they must be replaced with new ones.
3. Remove all traces of oil from the back of the new bearing shells.
4. Install 10 bearing shells (4) into place. Make sure the top bearings have oil holes and grooves. Insert the earbuds so that their locking lug matches the groove in the socket. The main bearing shells must be flush with the surface of the cylinder block.
5. Using both hands, install the crankshaft into the cylinder block.
6. Install five main bearing caps (3).
7. Install 10 new bolts (1, 2) crankshaft bearing caps.
8. Tighten the bolts of the crankshaft main bearing caps in the sequence shown in the figure in two stages:
- First step: tighten to 25 Nm.
- Step 2: Using tool EN-45059, tighten the bolts an additional 100°.
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