INSTALL RING PIN
Using a plastic hammer, tap in the ring pins.
| *a | Upper Side | *b | Lower Side |
| *c | Protrusion Height | - | - |
| Standard Protrusion | ||||||
|---|---|---|---|---|---|---|
|
INSTALL STUD BOLT
| *a | RH Side |
Using an E7 "TORX" socket, install the stud bolt.
INSTALL STRAIGHT PIN
Using a plastic hammer, tap in the straight pins.
| *a | Front Side | *b | Lower Side |
| *c | Rear Side | *d | RH Side |
| *e | LH Side | *f | Protrusion Height |
| Standard Protrusion | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
INSPECT CRANKSHAFT OIL CLEARANCE
Check the crank journal and bearing for pitting and scratches.
Install the crankshaft bearing Click here.
Place the crankshaft on the cylinder block.
| *1 | Plastigage |
Lay a strip of plastigage across each journal.
Examine the front marks and numbers and install the crankshaft bearing caps on the cylinder block.
Tech Tips
A number is marked on each crankshaft bearing cap to indicate the installation position.
Install the crankshaft bearing caps Click here.
Note
Do not turn the crankshaft.
Remove the bearing caps Click here.
| *1 | Plastigage |
| *a | Number Mark |
Measure the Plastigage at its widest point.
| Standard oil clearance |
|---|
| 0.008 to 0.024 mm (0.000315 to 0.000945 in.) |
| Maximum oil clearance |
|---|
| 0.05 mm (0.00197 in.) |
Note
Remove the Plastigage completely after the measurement.
If the oil clearance is greater than the maximum, replace the crankshaft bearing. If necessary, replace the crankshaft.
Tech Tips
If replacing a bearing, select a new one with the same number. If the number of the bearing cannot be determined, calculate the correct bearing number by adding together the numbers imprinted on the cylinder block and crankshaft. Then select a new bearing with the calculated number. There are 4 sizes of standard bearings, marked "1", "2", "3" and "4" accordingly.
EXAMPLE: Cylinder block "3" + Crankshaft "5" = Total number 8 (Use bearing "3")
| Cylinder block + Crankshaft | 0 to 2 | 3 to 5 | 6 to 8 | 9 to 11 |
| Bearing to be used | "1" | "2" | "3" | "4" |
| Standard Cylinder Block Journal Bore Diameter | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Standard Crankshaft Journal Diameter | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Standard Bearing Center Wall Thickness | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
INSTALL PISTON
Using a screwdriver, install a new snap ring at one end of the piston pin hole.
Tech Tips
Make sure that the end gap on the snap ring is not aligned with the pin hole cutout portion of the piston.
Gradually heat the piston to approximately 80 to 90 °C (176 to 194°F).
| *1 | Front Mark |
Align the front marks on the piston and connecting rod, and push in the piston with a thumb.
Using a screwdriver, install a new piston pin hole snap ring on the other end of the piston pin hole.
Tech Tips
Make sure that the end gap on the piston pin hole snap ring is not aligned with the pin hole cutout portion of the piston.
Check the fitting condition between the piston and piston pin by trying to move the piston back and forth on the piston pin.
INSTALL PISTON RING SET
Install the oil ring expander and 2 oil ring side rails by hand.
| *1 | Piston Ring Expander |
| *a | Paint Mark |
| *b | Code Mark (T) |
|
Upward |
Using a piston ring expander, install the 2 compression rings.
Note
Install the No. 2 compression ring with the code mark (T) facing upward.
Tech Tips
The No. 1 compression ring can be installed with either side facing upward.
| *1 | No. 1 Compression Ring |
| *2 | No. 2 Compression Ring |
| *3 | Upper Oil Ring Side Rail |
| *4 | Oil Ring Expander |
| *5 | Lower Oil Ring Side Rail |
| *a | Front Mark |
Position the piston rings so that the ring ends are as shown in the illustration.
INSTALL CRANKSHAFT BEARING
Install the upper bearing with an oil groove on the cylinder block.
Note
Do not apply engine oil to the backside of the bearing or bearing cap contact surfaces.
INSTALL NO. 2 CRANKSHAFT BEARING
| *a | Claw |
Install the No. 2 crankshaft bearing on the bearing cap.
Note
Clean the backside of the bearing and the bearing surface of the crankshaft. The surface should be free of dust and oil.
INSTALL UPPER CRANKSHAFT THRUST WASHER
| *a | Oil Groove |
Install the 2 upper crankshaft thrust washers under the No. 3 journal of the cylinder block with the oil grooves facing outward.
Note
Make sure to install the proper thrust washers.
Apply engine oil to the upper crankshaft thrust washers.
INSTALL CRANKSHAFT
Apply engine oil to the crankshaft bearings and place the crankshaft on the cylinder block.
Apply engine oil to the No.2 crankshaft bearings.
| *a | Front Mark and Number |
Examine the front marks and install the crankshaft bearing caps on the cylinder block.
Apply a light coat of engine oil to the threads and under the crankshaft bearing cap set bolts.
Install the crankshaft bearing cap set bolts.
Note
The crankshaft bearing cap set bolts are tightened in 2 progressive steps.
Step 1
Retighten the 10 crankshaft bearing cap set bolts in the sequence shown in the illustration.
Step 2
| *a | Paint Mark |
|
Engine Front |
Mark the front of the crankshaft bearing cap set bolts with paint.
Retighten the crankshaft bearing cap set bolts 90° in the numerical order shown in the illustration.
Check that the paint mark is now at a 90° angle to the front.
Check that the crankshaft turns smoothly.
Check the crankshaft thrust clearance Click here.
INSTALL CONNECTING ROD BEARING
| *a | Claw |
Align the bearing claw with the groove on the connecting rod or connecting rod cap.
Note
Clean the backside of the bearing and the bearing surface of the connecting rod. The surface should be free of dust and oil.
INSTALL PISTON SUB-ASSEMBLY WITH CONNECTING ROD
Note
The connecting rod cap bolts are tightened in 2 progressive steps.
Apply engine oil to the cylinder walls, pistons, and surfaces of connecting rod bearings.
| *1 | No. 1 Compression Ring |
| *2 | No. 2 Compression Ring |
| *3 | Upper Oil Ring Side Rail |
| *4 | Oil Ring Expander |
| *5 | Lower Oil Ring Side Rail |
| *a | Front Mark |
Check the position of the piston ring ends.
| *a | Front Mark |
|
Engine Front |
Using a piston ring compressor, push the correctly numbered piston and connecting rod assemblies into each cylinder with the front mark of the piston facing forward.
Note
Match the numbered connecting rod cap with the connecting rod.
Check that the protrusion on the connecting rod cap is facing in the correct direction.
Apply a light coat of engine oil to the threads and under the heads of the connecting rod cap bolts.
Install the connecting rod cap bolts.
Note
The connecting rod cap bolts should be tightened in 2 progressive steps.
Step 1
Install and alternately tighten the bolts of the connecting rod cap in several steps.
Step 2
| *a | Paint Mark |
|
Engine Front |
Mark the front of the connecting rod cap bolts with paint.
Retighten the cap bolts 90° as shown in the illustration.
Check that the crankshaft turns smoothly.
Check the connecting rod thrust clearance Click here.