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
| *a | 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, install the connecting rod small end bush.
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 (-0.0000787 to 0.000157 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
| *a | Cutout |
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 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.
| *a | for Bank 1 |
| *b | for Bank 2 |
| *c | Front Mark |
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.
| *a | Cutout |
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.
Using a piston ring expander, install the oil ring as shown in the illustration.
| *1 | Oil Ring | *2 | Oil Ring Expander |
| *a | for Bank 1 | *b | for Bank 2 |
| *c | Front Mark | *d | Oil Ring End |
| *e | Oil Ring Expander End | - | - |
|
Engine Front | - | - |
| *1 | No. 1 Compression Ring |
| *2 | No. 2 Compression Ring |
| *a | Code Mark |
Using a piston ring expander, install the No. 2 compression ring and No. 1 compression ring so that the painted marks are positioned as shown in the illustration.
Tech Tips
Install the No. 1 compression ring with the code mark (1N) facing upward.
Install the No. 2 compression ring with the code mark (2N) facing upward.
| *a | for Bank 1 |
| *b | for Bank 2 |
| *c | Front Mark |
| *d | No. 1 Compression Ring End |
| *e | No. 2 Compression Ring End |
|
Engine Front |
Position the No. 1 compression ring and No. 2 compression ring so that the ring ends are as shown in the illustration.
Note
Do not align the ring ends.
INSTALL CRANKSHAFT BEARING
| *1 | No. 1 Journal Bearing and No. 4 Journal Bearing |
| *2 | No. 2 Journal Bearing and No. 3 Journal Bearing |
| *a | 21 mm (0.827 in.) |
| *b | 18 mm (0.709 in.) |
Clean the main journal and both surfaces of the crankshaft bearings.
Note
Crankshaft bearings come in widths of 18.0 mm (0.709 in.) and 21.0 mm (0.827 in.). Install the 21.0 mm (0.827 in.) crankshaft 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.) crankshaft bearings in the No. 2 and No. 3 cylinder block journal positions with the crankshaft bearing cap.
| *a | Correct |
| *b | Incorrect |
| *c | Oil Groove |
| *d | Oil Feed Hole |
Install the upper crankshaft bearing.
Install the upper crankshaft bearings to the cylinder block sub-assembly as shown in the illustration.
Note
Do not apply engine oil to the crankshaft bearings or the contact surfaces.
Both sides of the oil groove in the cylinder block sub-assembly should be visible through the oil feed holes in the crankshaft bearing. The amount visible on each side of the holes should be equal.
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.
| *a | Journal Number |
| *b | 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.
| Difference between (A) and (B) |
|---|
| 0 to 0.7 mm (0 to 0.0276 in.) |
Note
Do not apply engine oil to the crankshaft bearings or 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.
| *a | Oil Groove |
Install the crankshaft thrust washer set to 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.
| *a | Projection |
| *b | 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 length of the crankshaft bearing cap set bolts before installing them.
| 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 by hand until the clearance between the crankshaft bearing cap and the cylinder block sub-assembly is less than 6 mm (0.236 in.).
Tech Tips
Place paint marks on the inside camshaft bearing cap set bolts indicating the required clearance and use them as a guide.
Using a plastic 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 length of the crankshaft bearing cap set bolts before installing them.
| 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 in the order shown in the illustration.
Note
Check that the crankshaft turns smoothly during the procedure.
Tech Tips
If any of the crankshaft bearing cap set bolts cannot be tightened to the specified torque, replace it.
Step 2:
| *a | Paint Mark |
| *b | 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 in the order shown in the illustration.
Note
Check that the crankshaft turns smoothly during the procedure.
Confirm the length of the crankshaft bearing cap set bolts before installing them.
| 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 bearings.
Install the connecting rod bearings to the connecting rod and connecting rod cap.
| *a | 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.
| Difference between (A) and (B) |
|---|
| 0 to 0.7 mm (0 to 0.0276 in.) |
Note
Do not apply engine oil to the connecting rod bearings or the connecting rod 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.
| *a | for Bank 1 |
| *b | for Bank 2 |
| *c | Front Mark |
| *d | Oil Ring End |
| *e | No. 1 Compression Ring End |
| *f | Oil Ring Expander End |
| *g | No. 2 Compression Ring End |
|
Engine Front |
Position the piston rings so that the ring ends are as shown in the illustration.
Note
Do not align the ring ends.
| *a | for Bank 2 |
| *b | for Bank 1 |
| *c | Front Mark |
|
Engine Front |
Using a piston ring compressor, push the correctly matched piston sub-assembly with connecting rod into the cylinder with the front mark of the piston facing the front of the engine.
Note
Match the connecting rod cap with the connecting rod.
| *a | Front Mark |
|
Engine Front |
Check that the front mark of the connecting rod cap is facing the front of the engine.
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 uniformly tighten the connecting rod bolts of each connecting rod cap in several steps.
Note
Check that the crankshaft turns smoothly during the procedure.
| *a | Paint Mark |
| *b | 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 of the engine.
Check that the crankshaft turns smoothly.
INSPECT CONNECTING ROD THRUST CLEARANCE