2006 NISSAN VERSA oil

CYLINDER HEAD
EM-71
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
2. Ream cylinder head (1) recess diameter for service valve seat.

Be sure to ream in circles concentric to the valve guide center.
This will enable valve seat to fit correctly.
3. Heat cylinder head to 110° to 130°C (230° to 266°F) by soaking
in heated oil (A).
4. Provide valve seats cooled well with dry ice. Press-fit valve seat into cylinder head.
CAUTION:

Never touch cold valve seats directly.

Cylinder head contains heat, when working, wear protective equipment to avoid getting burned.
5. Using valve seat cutter set or valve seat grinder, finish valve
seat to the specified dimensions. For dimensions, refer to EM-
109, "Valve Seat" .
CAUTION:
When using valve seat cutter, firmly grip the cutter handle
with both hands. Then, press on the contacting surface all
around the circumference to cut in a single drive. Improper
pressure on with the cutter or cutting many different times
may result in stage valve seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to EM-70, "
VALVE SEAT CONTACT" .
VALVE SPRING SQUARENESS

Set try square along the side of valve spring and rotate the
spring. Measure the maximum clearance between the top of
valve spring and try square.
CAUTION:
Never remove valve spring seat from valve spring.

If it exceeds the limit, replace valve spring (with valve spring
seat).
2 : Valve seat
Oversize [0.5 mm (0.020 in)]
Intake : 35.200 - 35.227 mm (1.3858 - 1.3869 in)
Exhaust : 29.200 - 29.227 mm (1.1496 - 1.1507 in)
PBIC3218J
PBIC3214J
SEM 93 4C
Limit: 1.9 mm (0.075 in)
PBIC0080E

EM-74Revision: June 2006
ENGINE ASSEMBLY
2007 Versa

Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for
unavoidable 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-42, "Garage Jack and
Safety Stand and 2-Pole Lift" .
REMOVAL
Remove the engine and the transaxle assembly from the vehicle downward. Separate the engine and the tran-
saxle.
1. Remove engine undercover
2. Drain engine coolant from radiator. Refer to CO-8, "
Changing Engine Coolant" .
CAUTION:

Perform this step when the engine is cold.

Do not spill engine coolant on drive belt.
3. Remove front fender protector (RH and LH); Refer to EI-22, "
FENDER PROTECTOR" .
4. Remove exhaust front tube; Refer to EX-3, "
EXHAUST SYSTEM" .
5. Remove drive shafts (LH and RH) from steering knuckle. Refer to FAX-8, "
FRONT DRIVE SHAFT" .
6. Remove transaxle joint bolts which pierce at oil pan (upper) lower rear side. Refer to AT - 2 5 3 , "
TRAN-
SAXLE ASSEMBLY" (A/T models), CVT-207, "TRANSAXLE ASSEMBLY" (CVT) or MT-15, "TRAN-
SAXLE ASSEMBLY" (M/T models).
7. Remove rear torque rod (1).
NOTE:
A/T model shown CVT and M/T models similar.
8. Remove hood assembly. Refer to BL-14, "
HOOD" .
9. Remove cowl top cover and cowl top extension assembly. Refer to EI-20, "
COWL TOP" .
10. Release fuel pressure. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
11. Remove battery and battery tray; Refer to SC-4, "
BATTERY" .
12. Remove drive belt; Refer to EM-13, "
Components" .
13. Remove air duct and air cleaner case assembly; Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
14. Remove cooling fan assembly.
15. Remove radiator hose (upper and lower). Refer to CO-11, "
RADIATOR" .
16. Disconnect A/T, CVT fluid cooler hoses. Refer to CO-11, "
RADIATOR"
17. 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.
18. Disconnect fuel feed hose at engine side. Refer to EM-33, "
Components" .
19. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-20,
"Components" .
20. Disconnect control cable from transaxle. Refer to CVT-191, "
SHIFT CONTROL SYSTEM" (CVT) or AT -
229, "SHIFT CONTROL SYSTEM" (A/T), MT-12, "CONTROL LINKAGE" (MT).
21. Remove ground cable at transaxle side.
22. Remove ground cable between front cover and vehicle.
23. Remove alternator. Refer to SC-24, "
CHARGING SYSTEM" .
LBIA0460E

ENGINE ASSEMBLY
EM-75
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
24. Remove A/C compressor with piping connected from the engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it. Refer to MTC-84, "
Removal and Installation of Compressor" .
25. Remove the intake manifold to prevent the hanging chain from interfering. Refer to EM-18, "
Components"
.
26. Install engine slinger to cylinder head front left side (A) and rear
right side (B) and support the engine position with a hoist.
27. Support engine and transaxle assembly with a hoist and secure the engine in appropriate position.
28. Use a manual lift table caddy (A) or equivalently rigid tool such
as a transmission jack. Securely support bottom of the engine
and the transaxle, and simultaneously adjust hoist tension.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
29. Remove torque rod (RH) (1), engine insulator (RH) (2) and
engine bracket (RH) (3).
30. Remove engine through bolt-securing nut (C).
31. Remove the engine and the transaxle assembly from the vehicle downward by carefully operating sup-
porting tools.
CAUTION:

During the operation, make sure that no part interferes with the vehicle side.

Before and during this lifting, always check if any harnesses are left connected.

During the removal operation, always be careful to prevent the vehicle from falling off the lift
due to changes in the center of gravity.

If necessary, support the vehicle by setting jack or suitable tool at the rear.

During operation, securely support the engine by placing a piece of wood under the engine oil
pan and transaxle oil pan. Securely support the engine slingers with a hoist.
32. When the engine hoisting is not performed simultaneously, install engine slinger to cylinder head front left
side and rear right side. Refer to EM-73, "
Components" .
33. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
34. Lift with a hoist and position above engine.
35. Separate the engine and the transaxle. Refer to AT - 2 5 3 , "
TRANSAXLE ASSEMBLY" (A/T models), CVT-
207, "TRANSAXLE ASSEMBLY" (CVT models) or MT-15, "TRANSAXLE ASSEMBLY" (M/T models).
: Engine front
Slinger bolts : 25.5 N·m (2.6 kg-m, 19 ft-lb)
LBIA0461E
PBIC3223J
4 : Engine insulator (LH)
A : Engine front side
B : Transaxle side
WBIA0784E

EM-76Revision: June 2006
ENGINE ASSEMBLY
2007 Versa
INSTALLATION
Note the following, and install in the reverse order of removal.

Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting
insulator.

When installation directions are specified, install parts according to the directions. Refer to EM-73, "Com-
ponents" .

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 including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
RECOMMENDED FLUIDS AND LUBRICANTS" .

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
leakage 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.

Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, 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.: Vehicle front
WBIA0785E
Item Before starting engine Engine running After engine stopped
Engine coolant Level Leakage Level
Engine oil Level Leakage Level
Other oils and fluid* Level Leakage Level
Fuel Leakage Leakage Leakage
Exhaust gases — Leakage —

EM-78Revision: June 2006
CYLINDER BLOCK
2007 Versa
Disassembly and AssemblyEBS00U7X
DISASSEMBLY
1. Remove engine and transaxle assembly from vehicle, separate transaxle from engine. Refer to EM-73,
"ENGINE ASSEMBLY" .
2. Install engine to engine stand as follows;
a. Remove flywheel (M/T models) or drive plate (1) (A/T or CVT
models).

Secure flywheel (M/T models) or drive plate (A/T or CVT mod-
els) using Tool (A), and remove bolts.
CAUTION:
Be careful not to damage or scratch drive plate (A/T or CVT
models) and contact surface for clutch disc of flywheel (M/T
models).
NOTE:
Figure shows drive plate (A/T or CVT models)
b. Lift the engine with a hoist to install it onto widely use engine stand.
CAUTION:

Use the engine stand that has a load capacity [approximately 135 kg (298 lb) or more] large
enough for supporting the engine weight.

If the load capacity of stand is not adequate, remove the following parts beforehand to reduce the
potential risk of overturning stand.
–Exhaust manifold; Refer to EM-21, "EXHAUST MANIFOLD" .
–Rocker cover; Refer to EM-30, "IGNITION COIL, SPARK PLUG AND ROCKER COVER" .
NOTE:
The figure shows an example of widely used engine stand (A)
that can support mating surface of transaxle with flywheel (M/T
models) or drive plate (A/T or CVT models) removed.
CAUTION:
Before removing the hanging chains, make sure the engine
stand is stable and there is no risk of overturning.
3. Remove oil pan (upper and lower). Refer to EM-24, "
OIL PAN" .
4. Remove cylinder head. Refer to EM-62, "
CYLINDER HEAD" .
5. Remove thermostat housing. Refer to CO-18, "
THERMOSTAT" .
1. Cylinder block 2. O-ring 3. Crankshaft position sensor (POS)
4.Crankshaft position sensor (POS)
cover5.Oil filter (for intake valve timing con-
trol)6. Knock sensor
7. Oil pressure switch 8. Top ring 9. Second ring
10. Oil ring 11. Snap ring 12. Piston
13. Piston pin 14. Connecting rod 15. Thrust bearing
16. Connecting rod bearing upper 17. Main bearing upper 18. Crankshaft key
19. Main bearing lower 20. Connecting rod bearing lower 21. Connecting rod bearing cap
22. Connecting rod bolt 23. Main bearing cap 24. Main bearing cap bolt
25. Crankshaft 26. Pilot converter (A/T or CVT models) 27. Signal plate
28. Rear oil seal 29. Drive plate (A/T or CVT models) 30. Reinforcement plate (A/T or CVT
models)
31. Flywheel (M/T models) 32. Block heater (Canada only) A. Refer to EM-81
Tool number : KV 11105210 (J-44716)
PBIC3226J
PBIC3227J

CYLINDER BLOCK
EM-79
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
6. Remove knock sensor.
CAUTION:
Carefully handle knock sensor avoiding shocks.
7. Remove crankshaft position sensor (POS) cover and crankshaft position sensor (POS).
CAUTION:

Avoid impacts such as a dropping.

Never disassemble.

Keep it away from metal particles.

Never place sensor in a location where it is exposed to magnetism.
8. Remove oil filter (for intake valve timing control).
9. Remove pilot converter (1) using Tool (A). (A/T or CVT models)
NOTE:
M/T models have no pilot converter.
10. Position crankshaft pin corresponding to connecting rod to be removed onto the bottom dead center.
NOTE:
Before removing piston and connecting rod assembly, check the connecting rod side clearance. Refer to
EM-95, "
CONNECTING ROD SIDE CLEARANCE" .
11. Remove connecting rod cap.
12. Using a suitable tool, push piston and connecting rod assembly
out to the cylinder head side.
CAUTION:

Be careful not to damage matching surface with connect-
ing rod cap.

Be careful not to damage the cylinder wall and crankshaft
pin, resulting from an interference of the connecting rod
big end.
13. Remove connecting rod bearings.
CAUTION:
When removing them, note the installation position. Keep them in the correct order.
14. Remove piston rings form piston.

Before removing piston rings, check the piston ring side clearance. Refer to EM-96, "PISTON RING
SIDE CLEARANCE" . Tool number :ST16610001 (J-23907)
PBIC3229J
PBIC0259E

CYLINDER BLOCK
EM-81
C
D
E
F
G
H
I
J
K
L
MA
EM
Revision: June 20062007 Versa
19. Loosen main bearing cap bolts in reverse order as shown, and
remove them.
NOTE:
Before loosening main bearing cap bolts, measure crankshaft
end play. Refer to EM-95, "
CRANKSHAFT END PLAY" .
20. Remove main bearing caps.

Tap main bearing caps lightly using a suitable tool for
removal.
CAUTION:
Be careful not to damage the mounting surface.
21. Remove crankshaft.
CAUTION:

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 unless 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.
CAUTION:
Use a goggles to protect your eye.
2. Install water drain plug (1) to cylinder block.

Apply liquid gasket to the drain plug thread.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-46, "
Recommended Chemical Products and Sealants" .
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 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).
: Engine front
PBIC3235J
PBIC3234J
: Engine front
9.8 N·m (1.0 kg-m, 87 in-lb)
PBIC3228J
: Engine front
PBIC3258J

EM-82Revision: June 2006
CYLINDER BLOCK
2007 Versa
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 bearing to the center position of cylinder block and main bearing
cap.

The difference (A) between main bearing upper (1) and
main bearing lower (3) should be 0.85 mm (0.033 in) or
less when installing.

Ensure the oil holes on cylinder block and oil holes (A)
on the main bearings (1) are aligned.
6. Install signal plate to crankshaft if removed.
7. Set the signal plate with the flange facing toward the counter weight side (engine front side) to the crank-
shaft rear surface.
8. Apply new engine oil to threads and seat surfaces of bolts.
9. Position crankshaft (2) and signal plate (1) using a dowel pin
(service part), and tighten bolts in numerical order as shown.
NOTE:
Dowel pin of crankshaft and signal plate is provided as a set for
each.
10. Tighten bolts in numerical order as shown.
11. Remove dowel pin. (service parts)
CAUTION:
Be sure to remove dowel pin.
12. Install crankshaft to cylinder block.

While turning crankshaft by hand, make sure that it turns smoothly.
2 : Cylinder block
4 : Main bearing cap
PBIC3237J
PBIC3236J
A : Dowel pin hole
PBIC3238J