Nissan Versa Sedan. Instruction — part 390
CYLINDER BLOCK
EM-95
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Disassembly and Assembly
INFOID:0000000009266677
DISASSEMBLY
NOTE:
The following procedures explain how to disassemble the engine with the engine stand fastened to the bell
housing. Some steps may be different if using a different type of engine stand.
1. Remove cylinder head. Refer to
2. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
3. Remove the crankshaft position sensor cover (3), and then
crankshaft position sensor (POS) (2).
CAUTION:
• Avoid impacts such as a dropping.
• Do not disassemble.
• Keep sensor away from metal particles.
• Do not place the sensor in a location where it is exposed
to magnetism.
• Do not reuse O-ring.
4. Remove oil pan (upper and lower). Refer to
5. Remove piston and connecting rod assembly:
• Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
.
a. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
b. Remove connecting rod cap.
c. Using a hammer handle or similar tool, push piston and connect-
ing rod assembly out through the cylinder head side.
CAUTION:
• Be careful not to damage mating surface with connecting
rod cap.
• Be careful not to damage the cylinder wall or crankshaft
pin.
6. Remove connecting rod bearings.
CAUTION:
Identify original positions for installation, and store the bearings without mixing them up.
10. Oil temperature sensor
11. Oil pressure sensor
12. Oil jet
13. Top ring
14. Second ring
15. Oil ring
16. Piston
17. Piston pin
18. Connecting rod
19. Connecting rod bearing (upper)
20. Main bearing (upper)
21. Thrust bearing
22. Crankshaft key
23. Connecting rod bolt
24. Connecting rod cap
25. Connecting rod bearing (lower)
26. Main bearing (lower)
27. Crankshaft
28. Pilot converter (A/T and CVT models)
29. Signal plate
30. Rear oil seal
31. Drive plate (A/T and CVT models)
32. Reinforce plate (A/T and CVT models) 33. Flywheel (M/T models)
34. Main bearing cap
35. Main bearing cap bolt
A.
Refer to
B.
Chamfered
: Crankshaft side
(1) O-ring
(4) Cylinder block
: Engine front
JPBIA4202ZZ
KBIA3365J
EM-96
< UNIT DISASSEMBLY AND ASSEMBLY >
[HR16DE]
CYLINDER BLOCK
7. Remove piston rings from piston.
• Before removing piston rings, check the piston ring side clearance. Refer to
.
• Use a suitable tool) (A) as shown.
CAUTION:
• When removing piston rings, be careful not to damage
the piston.
• Be careful not to damage piston rings by expanding
them excessively.
8. Remove piston from connecting rod.
• Use a Tools (A, B, C) and a press to remove the piston pin.
CAUTION:
• Do not damage the piston and connecting rod.
• Do not reuse piston and piston pin after removing piston
pin from connecting rod.
• The connecting rod is reusable.
NOTE:
The joint between the connecting rod and the piston pin is a press fit.
9. Remove the main bearing cap.
• Measure crankshaft end play before loosening main bearing cap bolts. Refer to
.
a. Loosen and remove bolts in several steps in reverse of the
numerical order as shown.
NOTE:
When removing or installing signal plate, use socket (size T40).
b. Remove the main bearing cap from the cylinder block while tapping lightly with a plastic hammer.
10. Remove crankshaft (2).
CAUTION:
• Be careful not damage or deform signal plate (1) mounted
on crankshaft.
• When setting crankshaft on a flat floor surface, use a
block of wood to avoid interference between signal plate
and the floor surface.
• Do not remove signal plate unless it is necessary to do
so.
NOTE:
When removing or installing signal plate, use socket (size T40).
11. Pull rear oil seal out from rear end of crankshaft.
12. Remove main bearing (upper and lower) and thrust bearings from cylinder block and main bearing caps.
CAUTION:
PBIC3233J
Tool Number (A) : KV10109730
(B)
: KV10110310
(C)
: ST13030020
PBIC5270J
: Engine front
JPBIA4203ZZ
JPBIA4531ZZ
CYLINDER BLOCK
EM-97
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[HR16DE]
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Identify original installation positions, and store the bearings without mixing them up.
13. Remove oil jets.
CAUTION:
Insert the dowel pin of oil jet into the cylinder block dowel pin hole to loosen the bolt.
ASSEMBLY
CAUTION:
Do not reuse O-rings.
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
WARNING:
Use goggles to protect your eyes.
2. Install oil jets.
3. Install main bearings and thrust bearings:
a. Remove dust, dirt, and engine oil on the bearing mating surfaces of cylinder block.
b. Install thrust bearings to the both sides of the No. 3 journal hous-
ing (B) on cylinder block.
• Install thrust bearings with the oil groove (A) facing crankshaft
arm (outside).
c. Install the main bearings paying attention to the direction.
• Before installing main bearings, apply new engine oil to the bearing surface (inside). Do not apply
engine oil to the back surface, but thoroughly clean it.
• When installing, align main bearing to the center position of cylinder block and main bearing cap.
• Ensure the oil holes on cylinder block and oil holes (A) on the
main bearings (1) are aligned.
NOTE:
For assembly, the center position can be visually identified.
• To install the main bearing, obtain a proper fit. Do not allow the
main bearing to lie off the cylinder block chamfer.
• To install the main bearing, obtain a proper fit. Do not allow the
main bearing to lie off bearing cap chamfer.
4. Install signal plate to crankshaft if removed.
a. Set the signal plate (1) with the flange facing toward the counter-
weight side (engine front side) to the crankshaft rear surface.
b. After positioning crankshaft and signal plate with positioning
dowel pin, tighten bolt.
NOTE:
Dowel pin of crankshaft and signal plate is provided as a set for
each.
c. Remove dowel pin.
CAUTION:
Be sure to remove dowel pin.
5. Install crankshaft to cylinder block.
: Engine front
PBIC3258J
PBIC3746E
(A) : Dowel pin hole
JPBIA4231ZZ
EM-98
< UNIT DISASSEMBLY AND ASSEMBLY >
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CYLINDER BLOCK
• While turning crankshaft by hand, check that it turns smoothly.
CAUTION:
Do not install rear oil seal at this time.
6. Install main bearing caps.
• Install the main bearing cap while referring to the front mark
(B) and the journal number stamp (A).
NOTE:
Main bearing cap cannot be replaced as a single part,
because it is machined together with cylinder block.
7. Tighten main bearing cap bolts in numerical order as shown with
the following steps:
a. Apply new engine oil to threads and seat surfaces of the bolts.
b. Tighten main bearing cap bolts in numerical order.
c.
Turn main bearing cap bolts 60 degrees clockwise (angle tight-
ening) in numerical order as shown.
CAUTION:
Check and confirm the tightening angle by using the Tool
(A) or protractor. Avoid judgment by visual inspection with-
out the Tool.
• After installing the main bearing cap bolts, check that crankshaft can be rotated smoothly by hand.
• Check crankshaft end play. Refer to
8. Install piston to connecting rod with the following procedure:
a. Set so that the front mark (A) on the piston head and the cylin-
der number (C) are in the position as shown.
NOTE:
The symbols without notes are for manufacturing.
: Engine front
JPBIA4204ZZ
: Engine front
Main bearing cap bolts
: 32.4 N·m (3.3 kg-m, 24 ft-lb)
JPBIA4203ZZ
Tool number
: KV10112100 (BT-8653-A)
PBIC3750E
(B) : Oil hole
(D) : Connecting rod big end grade
PBIC3766E
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