PROCEDURE
INSTALL NO. 1 OIL NOZZLE SUB-ASSEMBLY
Using a 5 mm hexagon wrench, install the 3 No. 1 oil nozzle sub-assemblies with the 3 bolts.
INSTALL CONNECTING ROD SMALL END BUSH
| *1 | Oil Hole |
Align the oil holes of a new connecting rod small end bush and the connecting rod sub-assembly.
Using SST and a press, press in the connecting rod small end bush.
Tech Tips
Make sure that the oil holes are aligned.
Using a pin hole grinder, hone the bush to obtain the specified clearance between the connecting rod small end bush and piston pin.
| Standard oil clearance |
|---|
| -0.002 to 0.004 mm (-0.00008 to 0.00016 in.) |
Check that the piston pin fits at normal room temperature.
Coat the piston pin with engine oil, and push it into the connecting rod with your thumb.
INSTALL PISTON SUB-ASSEMBLY WITH PIN
| *1 | Cutout Portion |
Using a screwdriver, install a new piston pin hole snap ring at one end of the piston pin hole.
Tech Tips
Confirm that the end gap of the piston pin hole snap ring is not aligned with the pin hole cutout portion of the piston.
Gradually heat the piston to approximately 80°C (176°F).
CAUTION:
Be sure to wear protective gloves.
Coat the piston pin with engine oil.
| *1 | Front Mark |
| *a | for Bank 1 |
| *b | for Bank 2 |
Align the front marks of the piston and connecting rod, and push in the piston pin with your thumb.
Tech Tips
The piston and piston pin are a matched set.
Check the fitting condition between the piston and piston pin by trying to move the piston back and forth on the piston pin.
| *1 | Cutout Portion |
Using a screwdriver, install a new piston pin hole snap ring at the other end of the piston pin hole.
Tech Tips
Confirm that the end gap of the piston pin hole snap ring is not aligned with the pin hole cutout portion of the piston.
Check that the piston moves smoothly.
INSTALL PISTON RING SET
Install the oil ring expander by hand.
| *1 | Piston Ring Expander |
| *2 | No. 1 Compression Ring |
| *3 | No. 2 Compression Ring |
| *4 | Oil Ring |
| *5 | Oil Ring Expander |
| *6 | Cutout |
Using a piston ring expander, install the No. 1 compression ring, No. 2 compression ring and oil ring as shown in the illustration.
Note
Install the No. 2 compression ring with the cutout facing downward.
| *1 | Oil Ring End |
| *2 | No. 1 Compression Ring End |
| *3 | No. 2 Compression Ring End |
| *4 | Oil Ring Expander End |
| *5 | Front Mark |
| *a | for Bank 1 |
| *b | for Bank 2 |
|
Engine Front |
Position the piston rings so that the ring ends are as shown in the illustration.
Note
Do not align the ring ends.
INSTALL CRANKSHAFT BEARING
| *1 | No. 1 and No. 4 Journal Bearing |
| *2 | No. 2 and No. 3 Journal Bearing |
| *a | 21.0 mm (0.827 in.) |
| *b | 18.0 mm (0.709 in.) |
Clean the main journal and both surfaces of the bearings.
Note
Crankshaft bearings come in widths between 18.0 mm (0.709 in.) and 21.0 mm (0.827 in.).
Install the 21.0 mm (0.827 in.) bearings in the No. 1 and No. 4 cylinder block journal positions with the crankshaft bearing cap.
Install the 18.0 mm (0.709 in.) bearings in the No. 2 and No. 3 positions.
| *1 | Oil Groove |
| *2 | Oil Feed Hole |
| *a | CORRECT |
| *b | INCORRECT |
Install the upper crankshaft bearing.
Install the upper crankshaft bearings to the cylinder block as shown in the illustration.
Note
Do not apply engine oil to the crankshaft bearings and the contact surfaces.
Both sides of the oil groove in the cylinder block should be visible through the oil feed holes in the bearing.
The amount visible on each side of the holes should be equal.
Do not allow coolant to come into contact with the bearing inner surface.
If any coolant comes into contact with the crankshaft bearing inner surface, replace the crankshaft bearing with a new one.
| *1 | Journal Number |
| *2 | Vernier Caliper |
Install the lower crankshaft bearing.
Install the lower crankshaft bearings to the crankshaft bearing caps.
Using a vernier caliper, measure the distance between the crankshaft bearing cap edge and the lower crankshaft bearing edge.
| Standard Dimension (A - B or B - A) |
|---|
| 0 to 0.7 mm (0 to 0.0276 in.) |
Note
Do not apply engine oil to the crankshaft bearings and the contact surfaces.
Do not allow coolant to come into contact with the crankshaft bearing inner surface.
If any coolant comes into contact with the crankshaft bearing inner surface, replace the crankshaft bearing with a new one.
INSTALL CRANKSHAFT THRUST WASHER SET
Apply engine oil to the crankshaft thrust washer set.
| *1 | Oil Groove |
Install the crankshaft thrust washer set under the No. 2 journal position of the cylinder block sub-assembly with the oil grooves facing outward.
Note
Be sure not to install the crankshaft thrust washer set the wrong way around.
INSTALL CRANKSHAFT
Apply engine oil to the upper crankshaft bearing, and then place the crankshaft on the cylinder block sub-assembly.
Apply engine oil to the lower crankshaft bearing.
| *1 | Projection |
| *2 | Number Mark |
Confirm the projections and numbers on the crankshaft bearing caps and install the crankshaft bearing caps on the cylinder block sub-assembly.
Tech Tips
A number is marked on each crankshaft bearing cap to indicate the installation position.
Apply a light coat of engine oil to the threads and under the heads of the crankshaft bearing cap set bolts.
Temporarily install the 8 crankshaft bearing cap set bolts to the inside positions.
Note
Confirm the crankshaft bearing cap set bolt length before installing.
| Bolt Length |
|---|
| 100 to 102 mm (3.94 to 4.02 in.) |
| *a | Less than 6 mm (0.236 in.) |
| *b | Bolt Length |
Insert the crankshaft bearing cap with your hand until the clearance between the crankshaft bearing cap and the cylinder block is less than 6 mm (0.236 in.) by marking the 2 internal crankshaft bearing cap set bolts as a guide.
Using a plastic-faced hammer, lightly tap the crankshaft bearing cap to ensure a proper fit.
Apply a light coat of engine oil to the threads and under the heads of the 8 crankshaft bearing cap set bolts.
| *a | Bolt Length |
Install the 8 crankshaft bearing cap set bolts to the outside positions.
Note
Confirm the crankshaft bearing cap set bolt length before installing.
| Bolt Length | ||||||
|---|---|---|---|---|---|---|
|
Tighten the crankshaft bearing cap set bolts.
Tech Tips
The crankshaft bearing cap set bolts are tightened in 2 progressive steps.
Step 1
Uniformly tighten the 16 crankshaft bearing cap set bolts in several steps and in the sequence shown in the illustration.
Note
Check that the crankshaft turns smoothly during the procedure.
If any of the crankshaft bearing cap set bolts does not meet the torque specified, replace it.
Step 2
| *1 | Paint Mark |
| *a | 90° |
|
Engine Front |
Mark the front of the crankshaft bearing cap set bolts with paint.
Tighten the crankshaft bearing cap set bolts another 90°.
Check that the painted marks are now at a 90° angle to the front of the engine.
Install 8 new seal washers and uniformly tighten the 8 bolts in several steps and in the sequence shown in the illustration.
Note
Check that the crankshaft turns smoothly during the procedure.
Confirm the crankshaft bearing cap set bolt length before installing.
| Bolt Length | ||||||
|---|---|---|---|---|---|---|
|
Check that the crankshaft turns smoothly.
Check the crankshaft thrust clearance.
INSTALL CONNECTING ROD BEARING
Clean the connecting rod, connecting rod cap and connecting rod bearing.
Install the connecting rod bearings to the connecting rod and connecting rod cap.
| *1 | Vernier Caliper |
Using a vernier caliper, measure the distance between each connecting rod bearing edge and the connecting rod edges, and the connecting rod cap edges respectively.
| Standard Dimension (A - B or B - A) |
|---|
| 0 to 0.7 mm (0 to 0.0276 in.) |
Note
Do not apply engine oil to the connecting rod bearings and the contact surfaces.
Do not allow coolant to come into contact with the connecting rod bearing inner surface.
If any coolant comes into contact with the connecting rod bearing inner surface, replace the connecting rod bearing with a new one.
INSTALL PISTON SUB-ASSEMBLY WITH CONNECTING ROD
Apply engine oil to the cylinder walls, the pistons, and the surfaces of the connecting rod bearings.
| *1 | Oil Ring End |
| *2 | No. 1 Compression Ring End |
| *3 | No. 2 Compression Ring End |
| *4 | Oil Ring Expander End |
| *5 | Front Mark |
| *a | for Bank 1 |
| *b | for Bank 2 |
|
Engine Front |
Position the piston rings so that the ring ends are as shown in the illustration.
Note
Do not align the ring ends.
| *1 | Front Mark |
| *a | for Bank 1 |
| *b | for Bank 2 |
|
Engine Front |
Using a piston ring compressor, push the correctly numbered piston and connecting rod sub-assembly into the cylinder with the front mark of the piston facing forward.
Note
Match the numbered connecting rod cap with the connecting rod.
| *1 | Front Mark |
|
Engine Front |
Check that the front mark of the connecting rod cap is facing forward.
Apply a light coat of engine oil to the threads and under the heads of the connecting rod bolts.
Install the connecting rod bolts.
Tech Tips
The connecting rod bolts are tightened in 2 progressive steps.
Step 1
Install and alternately tighten the connecting rod bolts of each connecting rod cap in several steps.
Note
Check that the crankshaft turns smoothly during the procedure.
| *1 | Paint Mark |
| *a | 90° |
|
Engine Front |
Mark the front side of each connecting rod bolt with paint.
Step 2
Tighten the connecting rod bolts 90°.
Check that the paint marks are now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
INSPECT CONNECTING ROD THRUST CLEARANCE