Nissan Maxima. Instruction — part 555
EM-108
< UNIT DISASSEMBLY AND ASSEMBLY >
CYLINDER BLOCK
CAUTION:
• Apply new engine oil to parts as marked in illustrations before installation.
• Place removed parts such as bearings and bearing caps in their proper order and direction.
• When installing the connecting rod nuts, and main bearing cap bolts, apply new engine oil to the
threads and mating surfaces
• Do not allow any magnetic materials to contact the signal plate teeth on the drive plate.
DISASSEMBLY
1. Remove the engine assembly. Refer to
EM-103, "Removal and Installation"
.
2. Remove the crankshaft pulley.
• Use a suitable tool to prevent the crankshaft from turning.
3. Remove pilot converter using Tool.
4. Remove the drive plate. Refer to
.
5. Install the engine on engine stand.
CAUTION:
Use an engine stand that has a load capacity [approximately 240kg (529) or more] large enough for
supporting the engine weight.
Before removing the hanging chains, make sure the engine stand is stable and there is no risk of
overturning.
6. Remove the knock sensor.
CAUTION:
Carefully handle sensor to avoid shocking it.
7. Drain the engine of all coolant and oil.
8. Remove the upper oil pan. Refer to
EM-37, "Removal and Installation (Upper Oil Pan)"
9. Remove the timing chain. Refer to
EM-64, "Removal and Installation"
10. Remove the cylinder head. Refer to
EM-90, "Removal and Installation"
.
1.
Reinforcement plate
2.
Drive plate
3.
Rear oil seal retainer
4.
Rear oil seal
5.
Sub harness
6.
Knock sensor
7.
Cylinder block
8.
Thrust bearing (upper)
9.
Main bearing (upper)
10. Crankshaft
11. Crankshaft key
12. Thrust bearing (lower)
13. Main bearing (lower)
14. Main bearing cap
15. Main bearing cap bolt
16. Main bearing beam
17. Baffle plate
18. Connecting rod bolt
19. Connecting rod bearing cap
20. Connecting rod bearing
21. Connecting rod
22. Snap ring
23. Piston pin
24. Piston
25. Oil ring
26. Second ring
27. Top ring
28. Pilot converter
29. Oil jet
30. Gasket (for Canada)
31. Cylinder block heater (for Canada)
A.
Crankshaft side
B.
Chamfered
C.
Refer to INSTALLATION
D.
Front mark
Tool number
: ST16610001 (J-23907)
SEM005G
CYLINDER BLOCK
EM-109
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11. Cut away liquid gasket and remove rear oil seal retainer using
Tool. Refer to
EM-4, "Precaution for Liquid Gasket"
.
CAUTION:
• Be careful not to damage mounting surface.
• If rear oil seal retainer is removed, replace it with a new
one.
NOTE:
Rear oil seal and retainer form a single part and are replaced as
an assembly.
12. Remove the piston and connecting rod assemblies.
a. Position the crankshaft pin corresponding to the connecting rod
to be removed onto the bottom dead center.
b. Remove the connecting rod cap.
c. Using a hammer handle or similar tool, push the piston and con-
necting rod assembly out to the cylinder head side.
• Before removing the piston and connecting rod assembly,
check the connecting rod side clearance. Refer to
13. Remove the connecting rod bearings.
CAUTION:
• When removing the connecting rod side bearings, note the installation position. Keep them in
the correct order.
14. Remove the piston rings from the piston.
• Use a piston ring expander.
CAUTION:
• When removing the piston rings, be careful not to damage
the piston. Do not expand the rings excessively.
• Be careful to mark the rings if they are to be reused so
they are installed in their original position.
• Before removing the piston rings, check the piston ring side clear-
ance. Refer to
.
15. Remove the piston from the connecting rod as follows.
a. Using a snap ring pliers, remove the snap ring.
CAUTION:
Do not reuse snap rings, always replace with new ones.
Tool number
: KV10111100 (J-37228)
SEM830E
PBIC0086E
PBIC0087E
PBIC0260E
EM-110
< UNIT DISASSEMBLY AND ASSEMBLY >
CYLINDER BLOCK
b. Heat the pistons to 60
° - 70°C (140° - 158°F).
WARNING:
Pistons contain heat. When working, wear protective equip-
ment to avoid getting burned.
c.
Push out the piston pin with a suitable tool, with an outer diame-
ter approximately 20 mm (0.8 in).
16. Remove the baffle plate from the main bearing beam.
17. Loosen the bolts in the reverse order as shown and remove the
main bearing beam, bearing caps and crankshaft.
• Before loosening the main bearing cap bolts, measure the
crankshaft side clearance.
Refer to
.
18. Remove the oil jets and dowel pins.
19. Remove the main bearings and thrust bearings from the cylinder
block and main bearing caps.
• When removing them, note the direction and position. Keep
them in the correct order for installation.
ASSEMBLY
1. Blow out the coolant and oil passages and cylinder bore to remove any foreign materials.
CAUTION:
Use goggles to protect your eyes.
2. Apply liquid gasket and install each plug into the cylinder block.
• Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products
CAUTION:
• Installation should be done within 5 minutes after applying liquid gasket.
SEM965A
PBIC0262E
: Engine front
AWBIA1394ZZ
PBIC0898E
CYLINDER BLOCK
EM-111
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• Do not fill the engine with oil for at least 30 minutes after the components are installed to allow
the sealant to cure.
3. Install the oil jets.
• Insert the oil jet dowel pin into the cylinder block dowel pin
hole, and tighten the bolts.
4. Install the main bearings and the thrust bearings.
a. Remove dust, dirt, and oil on the bearing mating surfaces of the
cylinder block and the main bearing cap.
b. Install the thrust bearings to both sides of the No. 3 journal hous-
ing on the cylinder block and the main bearing cap.
• Install the thrust bearings with the oil groove facing the crank-
shaft arm (outside).
• Install bearing with a projection on one end on cylinder block
and bearing with a projection at center on cap. Align each pro-
jection with mating notch.
5. Set the upper main bearings in their proper positions on the cyl-
inder block.
• Confirm the correct main bearings are used. Refer to
.
6. Instructions for the re-use of the main bearing cap bolts.
• A plastic zone tightening method is used for tightening the
main bearing cap bolts. Measure d1 and d2 as shown.
• For d2, select the minimum diameter in the measuring area.
• If the difference between d1 and d2 exceeds the limit, replace
the bolts for assembly.
PBIC0898E
PBIC0807E
SEM175F
Limit (d1 - d2)
: 0.11 mm (0.0043 in)
SEM177F
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