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OIL PAN
EM-25
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1. Drain engine oil. Refer to LU-5, "ENGINE OIL" .
2. Remove engine and transaxle assembly. Refer to EM-73
.
3. Remove oil filter using Tool.
CAUTION:
When removing, prepare a shop cloth to absorb any engine oil leakage or spillage.
4. Remove oil pan (lower) bolts in reverse order as shown.
5. After removing the bolts and nuts, separate the mating surface
and remove the sealant using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
6. Remove the following parts:
Flywheel (M/T models) or drive plate (A/T or CVT models); Refer to EM-77, "CYLINDER BLOCK" .
Front cover, timing chain, oil pump drive chain; Refer to EM-37, "TIMING CHAIN" .
7. Remove oil pump.
Loosen bolts in reverse order as shown.
8. Remove oil pan (lower) bolts in reverse order as shown.Tool number : KV10115801 ( — )
: Engine front
PBIC3146J
Tool number : KV10111100 (J-37228)
WBIA0566E
1 : Oil pump
2 : Oil pan (upper)
: Engine front
PBIC3532J
: Engine front
PBIC3533J
Page 1835 of 2896

EM-26Revision: June 2006
OIL PAN
2007 Versa
9. Insert a screwdriver shown by the arrow ( ) and open up a
crack between oil pan (upper) and cylinder block.
CAUTION:
A more adhesive liquid gasket is applied compared to previ-
ous types when shipped, so it should not be forced off the
position not specified.
10. After removing the bolts, separate the mating surface and
remove the sealant using Tool.
Slide (1) the Tool by tapping (2) its side with a hammer to
remove the lower oil pan from the upper oil pan.
CAUTION:
Be careful not to damage the mating surfaces.
11. Remove O-ring between cylinder block and oil pan (upper).
INSPECTION AFTER REMOVAL
Oil Filter
Clean oil strainer portion (part of the oil pump) if any object attached.
INSTALLATION
1. Use a scraper (A) to remove old liquid gasket from mating sur-
faces.
Remove the old liquid gasket from mating surface of cylinder
block.
Remove old liquid gasket from the bolt holes and threads.
CAUTION:
Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
: Engine front
PBIC3534J
Tool number : KV10111100 (J-37228)
WBIA0566E
PBIC3949E
Page 1836 of 2896

OIL PAN
EM-27
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2. Apply the sealant without breaks to the specified location using
Tool.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-46, "
Recommended Chemical Products and Sealants" .
CAUTION:
Apply liquid gasket to outside of bolt hole for the positions
shown by marks.
3. Install new O-ring at cylinder block side.
CAUTION:
Install avoiding misalignment of O-ring.
4. Tighten bolts in numerical order as shown.
5. Install rear oil seal with the following procedure.
CAUTION:
The installation of rear oil seal should be completed within 5 minutes after installing oil pan
(upper).
Always replace rear oil seal with new one.
Never touch oil seal lip.
a. Wipe off liquid gasket protruding to the rear oil seal mating part of oil pan (upper) and cylinder block using
a scraper.
b. Apply engine oil to entire outside area of rear oil seal.Tool number WS39930000 ( – )
1 : Oil pan (upper)
A : 2 mm protruded to outside
B : 2 mm protruded to rear oil seal mounting side
: Engine front
: Engine outside
PBIC4587E
: Engine front
PBIC3533J
Page 1837 of 2896

EM-28Revision: June 2006
OIL PAN
2007 Versa
c. Press-fit the rear oil seal using a drift with outer diameter 115
mm (4.53 in) and inner diameter 90 mm (3.54 in) (A) (commer-
cial service tool).
Press-fit to the specified dimensions as shown.
CAUTION:
Never touch the grease applied to the oil seal lip.
Be careful not to damage the rear oil seal mounting part
of oil pan (upper) and cylinder block or the crankshaft.
Press-fit straight, making sure that rear oil seal does not
curl or tilt.
NOTE:
The standard surface of the dimension is the rear end surface of cylinder block.
6. Install oil pump.
Tighten bolts in numerical order as shown.
7. Install oil pump sprocket, oil pump drive chain and other related
parts if removed.
8. Use a scraper (A) to remove old liquid gasket from mating sur-
faces.
Also remove old liquid gasket from mating surface of oil pan
(upper).
Remove old liquid gasket from the bolt holes and threads.
PBIC3951E
1 : Rear oil seal
A : Cylinder block rear end surface
1 : Oil pump
2 : Oil pan (upper)
: Engine front
PBIC3952E
PBIC3532J
PBIC3953E
Page 1838 of 2896
OIL PAN
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9. Apply the sealant without breaks to the specified location using
Tool.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-46, "
Recommended Chemical Products and Sealants" .
10. Tighten bolts in numerical order as shown.
11. Install oil filter with the following procedure:
a. Remove foreign materials adhering to the oil filter installation
surface.
b. Apply new engine oil to the oil seal contact surface of new oil fil-
ter.
c. Screw oil filter manually until it touches the installation surface,
then tighten it by 2/3 turn. Or tighten to specification.
12. Installation of the remaining components is in the reverse order of removal.Tool number WS39930000 ( – )
1 : Oil pan (lower)
: Engine outside
PBIC4590E
: Engine front
PBIC3146J
Oil filter: : 17.7 N·m (1.8 kg-m, 13 ft-lb)
SM A22 9B
Page 1840 of 2896
IGNITION COIL, SPARK PLUG AND ROCKER COVER
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4. Remove rocker cover.
Loosen bolts in reverse order as shown.
Engine front
INSPECTION AFTER REMOVAL
CAUTION:
Never drop or shock spark plug.
Checking and adjusting spark plug gap is not required
between change intervals.
If spark plug tip is covered with carbon, a spark plug cleaner may be used.
Never use wire brush for cleaning spark plug.
INSTALLATION
1. Install rocker cover gasket to rocker cover.
2. Install rocker cover.
Tighten bolts in two steps separately in numerical order as
shown.
Engine front
CAUTION:
Check if rocker cover gasket is not dropped from the instal-
lation groove of rocker cover.
PBIC3151J
SM A80 6CA
Cleaner air pressure
: Less than 588 kPa (5.88 bar, 6 kg/cm2 , 85 psi)
Cleaning time : Less than 20 seconds
SM A77 3C
1st step : 1.96 N·m (0.20 kg-m, 17 in-lb)
2nd step : 8.33 N·m (0.85 kg-m, 73 in-lb)
PBIC3151J
Page 1844 of 2896

FUEL INJECTOR AND FUEL TUBE
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8. Remove fuel tube.
Loosen bolts in reverse order as shown.
9. Remove the fuel tube and fuel injector assembly.
CAUTION:
When removing, be careful to avoid any interference with fuel injector.
Use a shop cloth to absorb any fuel leaks from fuel tube.
10. Remove fuel injector from fuel tube with the following procedure:
a. Open and remove clip.
b. Remove fuel injector from fuel tube by pulling straight.
CAUTION:
Be careful with remaining fuel that may go out from fuel tube.
Be careful not to damage fuel injector nozzle during removal.
Never bump or drop fuel injector.
Never disassemble fuel injector.
INSTALLATION
1. Note the following, and install O-rings to fuel injector.
CAUTION:
Upper and lower O-rings are different. Be careful not to confuse them.
Handle O-ring with bare hands. Never wear gloves.
Lubricate O-ring with new engine oil.
Never clean O-ring with solvent.
Make sure that O-ring and its mating part are free of foreign material.
When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to
twist or stretch O-ring. If O-ring was stretched while it was being attached, never insert it quickly
into fuel tube.
Insert O-ring straight into fuel tube. Never twist it.
: Engine front
PBIC3154J
Fuel tube side : Black
Nozzle side : Green
Page 1847 of 2896

EM-38Revision: June 2006
TIMING CHAIN
2007 Versa
Removal and InstallationEBS00U7N
CAUTION:
The rotating direction indicated in the text indicates all directions seen from the engine front.
REMOVAL
1. Remove front RH wheel. Refer to WT-6, "ROAD WHEEL TIRE ASSEMBLY" .
2. Remove front fender protector (RH). Refer to EI-22, "
FENDER PROTECTOR" .
3. Drain engine oil. Refer to LU-5, "
ENGINE OIL" .
NOTE:
Perform this step when engine is cold.
4. Remove the following parts.
Rocker cover: Refer to EM-30, "Components" .
Drive belt: Refer to EM-13, "Components" .
Water pump pulley: Refer to CO-17, "Components" .
Ground cable (between engine bracket (RH) and radiator core support)
5. Support the bottom surface of engine using a transmission jack, and then remove the engine bracket and
insulator (RH). Refer to EM-73, "
ENGINE ASSEMBLY" .
6. 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.
13.Timing chain tension guide (front
cover side)14. Crankshaft sprocket 15. Oil pump sprocket
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-42
B. Refer to EM-51
C : White paint mark (Not use for service)
PBIC3960E
1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
PBIC3359J