EM-166
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
CAMSHAFT
ComponentINFOID:0000000005398131
Removal and InstallationINFOID:0000000005398132
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE”
sign in the workshop.
• Be sure to work in a well ventilate d area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
2. Disconnect negative battery terminal. Refer to SC-7, "
Removal and Installation".
3. Remove front RH wheel. Refer to WT-7, "
Adjustment".
4. Remove front fender protector (RH). Refer to EI-24
.
5. Drain engine coolant. Refer to CO-36
.
NOTE:
Perform this step when engine is cold.
6. Remove the following parts. • Intake manifold. Refer to EM-137
.
• Rocker cover. Refer to EM-149
.
1. O-ring 2. Camshaft position sensor (PHASE) 3. Camshaft bracket
4. Camshaft sprocket (EXH) 5. Camshaft sprocket (INT) 6. Camshaft (EXH)
7. Camshaft (INT) 8. Valve lifter (EXH) 9. Valve lifter (INT)
10. Cylinder head
A. Refer to EM-166
.
PBIC4589E
Revision: January 20102010 Versa
CAMSHAFTEM-173
< SERVICE INFORMATION > [MR18DE]
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10. Install camshaft sprocket (EXH) (2).
NOTE:
Secure the hexagonal part (A) of camshaft (EXH) using wrench
to tighten bolt.
11. Install timing chain and related parts. Refer to EM-156
.
12. Inspect and adjust valve clearance. Refer to EM-174, "
Valve Clearance".
13. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
The following are procedures for checking fluids leak, lubricates leak.
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to GI-42, "
Recommended Chemical Product and Sealant".
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak- age at connection points.
- Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leak age of fuel, or any oil/fluids including engine oil and
engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
• Perform this inspection only when DTC P0011 is detected in self-diagnostic results of CONSULT-III
and it is directed according to inspect ion procedure of EC section. Refer to EC-647, "
Diagnosis Pro-
cedure".
• Check when engine is cold so as to pr event burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-17, "
Inspection".
2. Perform the following procedure so as to prevent the engine from being unintentionally started while checking.
a. Remove intake manifold. Refer to EM-137, "
Component".
b. Disconnect ignition coil and in jector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-156, "
Component".
1 : Camshaft sprocket (INT)
Camshaft sprocket
bolt (EXH) : 88.2 N·m (9.0 kg-m, 65 ft-lb)
PBIC3454J
Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gases —Leakage —
Revision: January 20102010 Versa
EM-182
< SERVICE INFORMATION >[MR18DE]
CYLINDER HEAD
• If the engine speed is out of the specified range, c
heck battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
• If compression pressure is below minimum val ue, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, pi ston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
• If one cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
- If the added engine oil improves the compression, pi ston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal- functioning. Check valves for damage. Repl ace valve or valve seat accordingly.
• If two adjacent cylinders have respectively low co mpression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylinder
head gasket.
9. After inspection is completed, install removed parts.
10. Start the engine, and confirm that the engine runs smoothly.
11. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-585, "
Trouble Diagnosis Introduction".
ComponentINFOID:0000000005398138
Removal and InstallationINFOID:0000000005398139
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
• Be sure to work in a well ventilate d area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
2. Drain engine coolant and engine oil. Refer to CO-36
and LU-17.
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant an d engine oil on drive belt.
3. Remove front fender protector (RH). Refer to EI-24
.
4. Remove drive belt. Refer to EM-132, "
Removal and Installation".
5. Remove the following components and related parts.
1. Cylinder head assembly 2. Cylinder head bolt 3. Cylinder head gasket
A. Refer to EM-182
PBIC3542J
Revision: January 20102010 Versa
CYLINDER HEADEM-183
< SERVICE INFORMATION > [MR18DE]
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• Exhaust manifold. Refer to
EM-140.
• Intake manifold. Refer to EM-137
.
• Fuel tube and fuel injector assembly. Refer to EM-152
.
• Water outlet. Refer to CO-48
.
• Rocker cover. Refer to EM-149
.
• Front cover, timing chain. Refer to EM-156
.
• Camshaft. Refer to EM-166
.
6. Remove cylinder head. • Loosen bolts in reverse order as shown.
• Using TORX socket (size E18), loosen cylinder head bolts.
7. Remove cylinder head gasket.
INSPECTION AFTER REMOVAL
Cylinder Head Bolts Outer Diameter
• Cylinder head bolts are tightened by plastic zone tightening method. Whenever the size difference between (d1) and (d2)
exceeds the limit, replac e them with a new one.
• If reduction of outer diameter appear s in a position other than (d2),
use it as (d2) point.
Cylinder Head Distortion
NOTE:
When performing this inspection, cylinder block distortion should be also checked. Refer to EM-212, "
Inspec-
tion After Disassembly".
1. Wipe off engine oil and remove water scale (like deposit ), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
Never allow gasket debris to enter passag es for engine oil or engine coolant.
2. At each of several locations on bottom surface of cylinder head, measure the distortion in six di rections using straightedge (A)
and feeler gauge (B).
• If it exceeds the limit, replace cylinder head.
INSTALLATION
1. Install cylinder head gasket.
2. Apply new engine oil to threads and seating surface of bolts.
CAUTION:
If cylinder head bolts re-used, ch eck their outer diameters before installation. Follow the "Cylinder
Head Bolts Outer Diameter" procedure.
: Engine front
PBIC3206J
Limit [(d1) – (d2)]: 0.15 mm (0.0059 in)
PBIC3994E
Limit: 0.1 mm (0.004 in)
PBIC3207J
Revision: January 20102010 Versa
ENGINE ASSEMBLYEM-191
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ENGINE ASSEMBLY
ComponentINFOID:0000000005398143
Removal and InstallationINFOID:0000000005398144
WARNING:
• Situate the vehicle on a flat and solid surface.
• Place chocks at front and back of rear wheels.
• Attach proper slingers and bolts described in P
ARTS CATALOG if engine slingers are not equipped.
CAUTION:
• Always be careful to work safely, avoid forceful or uninstructed operations.
• Do not start working until exhaust system and coolant are cool enough.
• If items or work required are not covered by th e engine section, follow the applicable procedures.
• Always use the support poin t specified for lifting.
1. Engine mounting Insulator (RH) 2. Engine mounting shim (RH) (if equipped) 3. Engine mounting bracket (RH)
4. Bracket 5. Rear torque rod 6. Engine through bolt
7. Engine mounting bracket (LH) 8. Engine mounting insulator (LH) 9. Torque rod (RH)
A. Front mark B. Silicone lubricant
WBIA0846E
Revision: January 20102010 Versa
EM-192
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
• Use either 2-pole lift type or separate type lift as
best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shift of center of gravity.
• For supporting points for lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine under cover. Refer to EI-15, "
Removal and Installation".
2. Drain engine coolant from radiator. Refer to CO-36, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Do not spill engine coolant on drive belt.
3. Drain clutch fluid (M/T models). Refer to CL-9, "
Air Bleeding Procedure".
4. Drain M/T oil (M/T models). Refer to MT-54, "
Changing M/T Oil".
5. Remove front fender protector (RH and LH). Refer to EI-24
.
6. Remove exhaust front tube. Refer to EX-11
.
7. Remove drive shafts (LH and RH) from steering knuckle. Refer to FA X - 9
.
8. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT-233
(A/T models),
CVT-173, "
Removal and Installation" (CVT models) or MT-61, "Removal and Installation" (M/T models).
9. Remove rear torque rod (1). NOTE:
A/T model shown CVT and M/T models similar.
10. Remove hood assembly. Refer to BL-13
.
11. Remove cowl top cover and cowl top extension assembly. Refer to EI-22
.
12. Release fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
13. Remove battery and battery tray. Refer to SC-5
.
14. Remove drive belt; Refer to EM-132, "
Component".
15. Remove engine room cover.
16. Remove air duct and air cleaner case assembly. Refer to EM-135
.
17. Remove cooling fan assembly. Refer to CO-43, "
Removal and Installation".
18. Remove radiator hose (upper and lower). Refer to CO-40
.
19. Disconnect A/T, CVT fluid cooler hoses (A/T or CVT models). Refer to CO-40
.
20. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem- porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag to protect against foreign materials during the operation.
21. Disconnect fuel feed hose at engine side. Refer to EM-152, "
Component".
22. Disconnect heater hoses, and install plugs in them to prevent engine coolant from draining. Refer to CO-
48, "Component".
23. Disconnect control cable from transaxle. Refer to CVT-173, "
Removal and Installation" (CVT models), AT-
213 (A/T models) or MT-61, "Removal and Installation" (M/T models).
24. Remove ground cable at transaxle side.
25. Remove ground cable between front cover and vehicle.
26. Remove generator. Refer to SC-21
.
LBIA0460E
Revision: January 20102010 Versa
EM-194
< SERVICE INFORMATION >[MR18DE]
ENGINE ASSEMBLY
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• When installation directions are specified, install parts according to the directions. Refer to EM-191, "
Com-
ponent".
• Prior to installing the upper torque rod, apply a light coat of silicone lubricant (A) to the washer facing side of the bushing inner tube as
shown.
NOTE:
• Apply silicone lubricant (A) by dabbing the outward facing tube
surface with a sponge or suitable tool.
• Do not apply excess lubricant.
• Make sure that each mounting insulator is seated properly, and tighten nuts and bolts.
• Tighten engine mounting insulator (RH) bolts in the numerical order shown.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak and exhaust gases leak.• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14
.
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ- ing engine oil and engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc. : Vehicle front
LBIA0470E
: Vehicle front
WBIA0785E
Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gases —Leakage —
Revision: January 20102010 Versa
CYLINDER BLOCKEM-199
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• Be careful not to damage or deform signal plate (1)
mounted on rear end of crankshaft (A).
• 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.
22. Pull rear oil seal out from rear end of crankshaft.
23. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify installation positions, and store them without mix-
ing them 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.
2. Install water drain plug (1) to cylinder block.
• Apply liquid gasket to the drain plug thread.
Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
3. Remove dust, dirt, and engine oil on the bearing mating sur- faces of cylinder block and main bearing cap.
4. Install thrust bearings to both sides of the No. 3 journal housing (B) on cylinder block.
• Install thrust bearings with the oil groove (A) facing crankshaftarm (outside).
5. Install the main bearings paying attention to the direction. CAUTION:
• Before installing main bearings, apply new engine oil to the bearing surface (inside). Do not
apply new engine oil to the back surface, but thoroughly clean it.
• When installing, align main b earing to the center position of cylinder block and main bearing
cap.
PBIC3234J
: Engine front
9.8 N·m (1.0 kg-m, 87 in-lb)
PBIC3228J
: Engine front
PBIC3258J
Revision: January 20102010 Versa