CYLINDER BLOCKEM-91
< DISASSEMBLY AND ASSEMBLY > [HR16DE]
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7. Remove piston from connecting rod.
• Use Tool and a press to remove the piston pin.
CAUTION:
Be careful not to damage the piston and connecting rod.
NOTE:
The joint between the connecting rod and the piston pin is a
press fit.
8. Remove the main bearing cap in the following procedure. • Measure crankshaft end play before loosening main bearing cap bolts. Refer to EM-97, "
Inspection"
a. Loosen and remove bolts in several steps in reverse of the
numerical order shown.
• TORX socket (size: E14) can be used.
b. Label parts for assembly and remove the main beari ng cap from the cylinder block while tapping lightly
with a plastic hammer.
CAUTION:
Identify installation positions, and store th em without mixing up.
9. Remove crankshaft (2). CAUTION:
• Be careful not damage or deform signal plate (1) mountedon crankshaft.
• When setting crankshaft on a flat floor surface, use a block of wood to avoid interference between signal plate
and the floor surface.
• Never remove signal plate unl ess it is necessary to do so.
NOTE:
When removing or installing signal plate, use TORX socket (size
T40).
10. Pull rear oil seal out from rear end of crankshaft.
11. Label parts for assembly and remove main bearing (upper and lower) and thrust bearings from cylinder block and main bearing cap.
CAUTION:
Identify installation positions, and store th em without mixing up.
ASSEMBLY
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.Tool number (A) : KV10109730 ( — )
Tool number (B) : KV10110310 ( — )
Tool number (C) : ST13030020 ( — )
PBIC5270J
: Engine front
PBIC3744E
PBIC3745E
Revision: January 20102010 Versa
EM-100
< DISASSEMBLY AND ASSEMBLY >[HR16DE]
CYLINDER BLOCK
Measure the outer diameter of piston pin with a micrometer.
Connecting Rod Small End Clearance
(Connecting rod small end clearance) = (Connecting rod sm
all end inner diameter) – (Piston pin outer diame-
ter)
• If the measured value is out of the standard, repl ace connecting rod assembly and/or piston and piston pin
assembly.
• If replacing connecting rod assembly, use "CONNECTING ROD BEARING OIL CLEARANCE" to select con-
necting rod bearing.
CYLINDER BLOCK TOP SURFACE DISTORTION
• Using a scraper, remove gasket on the cylinder block su rface, and also remove engine oil, scale, carbon, or
other contamination.
CAUTION:
Be careful not to allow gasket flakes to en ter engine oil or engine coolant passages.
• Measure the distortion on the cylinder block upper face at some different points in six directions with a straight edge and a feeler
gauge.
• If it exceeds the limit, replace cylinder block.
MAIN BEARING HOUSING INNER DIAMETER
• Install main bearing cap without main bearings install ed, and tighten main bearing cap bolts to the specified
torque. Refer to EM-90, "
Disassembly and Assembly".
• Measure the position shown [5 mm (0.196 in) rearward from main bearing housing front side end surface) in the 2 directions as
shown. The smaller one is the measured value.
• If out of the standard, replace cylinder block and main bearing caps as an assembly.
NOTE:
These components cannot be replaced as a single unit, because they were processed together.
PISTON TO CYLINDER BORE CLEARANCE
Cylinder Bore Inner Diameter
Standard : Refer to EM-116, "Cylinder Block".
PBIC0117E
Standard : Refer to EM-116, "Cylinder Block".
Limit : Refer to EM-116, "
Cylinder Block".
PBIC0121E
1 : Cylinder block
2 : Main bearing cap
: Engine front
Standard : Refer to EM-116, "Cylinder Block".
PBIC3879E
Revision: January 20102010 Versa
PRECAUTIONSEM-123
< SERVICE INFORMATION > [MR18DE]
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5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for Procedure without Cowl Top CoverINFOID:0000000005398098
When performing the procedure after removing cowl top cover, cover
the lower end of windshield.
Precaution for Drain CoolantINFOID:0000000005398099
• Drain coolant when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000005398100
• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and DisassemblyINFOID:0000000005398101
• When instructed to use special service tools, use the spec ified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equiva lent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specif ied, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000005398102
• Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000005398103
• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check oil or coolant passages for any restriction
and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust. Before assembly, oil sliding surfaces well.
• Release air within route after draining coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped). Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check coolant, fuel, oil, and exhaust systems for leakage.
PIIB3706J
Revision: January 20102010 Versa
PRECAUTIONSEM-125
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• After 30 minutes or more have passed from the installation, fill
the engine with the specified oil and coolant. Refer to MA-14,
"Fluids and Lubricants".
CAUTION:
Follow all specific instruct ions in this manual.
SEM159F
Revision: January 20102010 Versa
DRIVE BELTSEM-133
< SERVICE INFORMATION > [MR18DE]
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1. Install drive belt.
CAUTION:
Confirm drive belt is completely set to pulleys.
2. Release drive belt auto-tensioner, and apply tension to drive belt. WARNING:
Never place hand in a location where pinching m ay occur if the holding tool accidentally comes
off.
CAUTION:
Make sure no engine oil, working fluid and engine coolant are adhe red to drive belt and each pul-
ley groove.
3. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
4. Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to
EM-132, "
Checking Drive Belts".
5. Install fender protector (RH). Refer to EI-24, "
Removal and Installation".
ComponentINFOID:0000000005398114
Removal and Installation of Drive Belt Auto TensionerINFOID:0000000005398115
REMOVAL
CAUTION:
The complete auto-tensioner must be re placed as a unit, including the pulley.
1. Remove drive belt. Refer to EM-132, "
Removal and Installation".
2. Support the engine and remove the torque rod (RH), engine mounting insulator (RH) and engine mount- ing bracket (RH). Refer to EM-191, "
Component".
3. Release the fixed drive belt auto-tensioner pulley.
4. Loosen bolt and remove drive belt auto-tensioner. NOTE:
1. Front cover 2. Drive belt auto–tensioner3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C)
PBIC4698E
Revision: January 20102010 Versa
INTAKE MANIFOLDEM-137
< SERVICE INFORMATION > [MR18DE]
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INTAKE MANIFOLD
ComponentINFOID:0000000005398119
Removal and InstallationINFOID:0000000005398120
REMOVAL
WARNING:
To avoid the danger of being scalded, never drain the coolant when the engine is hot.
1. Remove engine room cover (1).
2. Remove air duct, air duct (inlet) and air duct (front). Refer to
EM-
135, "Component".
3. Disconnect the EVAP canister purge volume control solenoid valve.
4. Partially drain engine coolant. Refer to CO-36, "
Changing
Engine Coolant".
CAUTION:
Perform this step when engine is cold.
NOTE:
This step is unnecessary when putting plugs to water hoses (to
electric throttle control actuator).
a. Disconnect water hoses from electr ic throttle control actuator.
b. Remove electric throttle control actuator. CAUTION:
• Handle electric throttle control act uator carefully and avoid impacts.
1. PCV hose 2. Gasket 3. Intake manifold
4. Bracket 5. O-ring 6. EVAP canister purge volume control
solenoid valve
7. Water hose 8. Water hose 9. Electric throttle control actuator
10. Gasket A. To water outlet
WBIA0771E
WBIA0845E
Revision: January 20102010 Versa
INTAKE MANIFOLDEM-139
< SERVICE INFORMATION > [MR18DE]
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3. Tighten intake manifold bolt (A). Then tighten intake manifold
bolt (B).
4. Install electric throttle control actuator.
5. Install water hoses (3), (5) to electric throttle control actuator as shown.
6. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Check for leaks of engine coolant. Refer to CO-36, "Inspection".
• Start and warm up the engine. Visually check for engine coolant leaks.
1 : Intake manifold
: Engine front
Intake manifold bolt (A) : 19.6 N·m (2.0 kg-m, 14 ft-lb)
Intake manifold bolt (B) : 19.6 N·m (2.0 kg-m, 14 ft-lb)
PBIC3939E
1 : Electric throttle control actuator
2: Clamp
4 : Water outlet
A : Paint Mark
B : The clamp shall not interfere with the bulged section.
PBIC4703E
Revision: January 20102010 Versa
TIMING CHAINEM-157
< SERVICE INFORMATION > [MR18DE]
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ORemoval and InstallationINFOID:0000000005398130
CAUTION:
The rotating direction indicated in the text indicates all directions seen from the engine front.
REMOVAL
1. Disconnect the battery negative terminal. Refer to
SC-7, "Removal and Installation".
2. Drain engine oil. Refer to LU-18, "
Changing Engine Oil".
CAUTION:
Perform this step when engine is cold.
3. Partially drain engine coolant from the radiator. Refer to CO-36, "
Changing Engine Coolant".
4. Remove front RH wheel. Refer to WT-7, "
Adjustment".
5. Remove front fender protector (RH). Refer to EI-24, "
Removal and Installation".
6. Remove the following parts. • Rocker cover: Refer to EM-149, "
Component".
• Drive belt: Refer to EM-132, "
Removal and Installation".
• Water pump pulley: Refer to CO-44, "
Component".
• Ground cable (between engine bracket (RH) and radiator core support)
7. Support the bottom surface of engine using a transmission jack, and then remove the engine bracket and insulator (RH). Refer to EM-191, "
Component".
8. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front cover.
b. At the same time, make sure that the cam noses of the No.1 cyl- inder are located ( ) as shown.
• If not, rotate crankshaft pulley one revolution (360 degrees)and align as shown.
16. Oil pump drive chain 17. Camshaft sprocket (INT)18. Timing chain tension guide
19. O-ring 20. Chain tensioner (for oil pump)
A. Refer to EM-157
B. Refer to EM-166
C : White paint mark (Not use for service)
PBIC3960E
1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
PBIC3359J
Revision: January 20102010 Versa