TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-137
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Revision: June 20062007 Versa
5. CHANGE ENGINE OIL
1. Stop the engine.
2. Change engine oil. Refer to LU-6, "
Changing Engine Oil" .
NOTE:
This symptom may occur when a large amount of gasoline is mixed with engine oil because of driving
conditions (such as when engine oil temperature does not rise enough since a journey distance is too
short during winter). The symptom will not be detected after changing engine oil or changing driving con-
dition.
>>INSPECTION END
6. CHECK FUEL PRESSURE
Check fuel pressure. (Refer to EC-81, "
Fuel Pressure Check" .)
OK or NG
OK >> GO TO 9.
NG (Fuel pressure is too high)>>Replace fuel pressure regulator, refer to EC-81, "
Fuel Pressure Check" .
GO TO 8.
NG (Fuel pressure is too low)>>GO TO 7.
7. DETECT MALFUNCTIONING PART
1. Check the following.
–Clogged and bent fuel hose and fuel tube
–Clogged fuel filter
–Fuel pump and its circuit (Refer to EC-570, "FUEL PUMP" .)
2. If NG, repair or replace the malfunctioning part. (Refer to EC-81, "
Fuel Pressure Check" .)
If OK, replace fuel pressure regulator.
>> GO TO 8.
8. CHECK “A/F ALPHA-B1”
1. Start engine.
2. Select “A/F ALPHA-B1” in “DATA MONITOR (SPEC)” mode, and make sure that the indication is within
the SP value.
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. PERFORM POWER BALANCE TEST
1. Perform “POWER BALANCE” in “ACTIVE TEST” mode.
2. Make sure that the each cylinder produces a momentary engine
speed drop.
OK or NG
OK >> GO TO 12.
NG >> GO TO 10.
PBIB0133E
EC-312Revision: June 2006
DTC P0300 - P0304 MULTIPLE CYLINDER MISFIRE, NO. 1 - 4 CYLINDER MIS-
FIRE
2007 Versa
7. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For
spark plug type, refer to MA-18, "
Changing Spark Plugs"
.
NG >> 1. Repair or clean spark plug.
2. GO TO 8.
8. CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug
and the grounded portion.
OK or NG
OK >>INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to MA-18, "
Changing
Spark Plugs" .
9. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-62, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 10.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
10. CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-81, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 12.
NG >> GO TO 11.
11 . DETECT MALFUNCTIONING PART
Check the following.
Fuel pump and circuit (Refer to EC-570, "FUEL PUMP" .)
Fuel pressure regulator (Refer to EC-81, "FUEL PRESSURE CHECK" .)
Fuel lines (Refer to EM-33, "FUEL INJECTOR AND FUEL TUBE" .)
Fuel filter for clogging
>> Repair or replace.
SEF 1 56 I
Spark should be generated.
At idling: Approximately 350 kPa (3.57 kg/cm
2 , 51 psi)
EM-1
ENGINE MECHANICAL
B ENGINE
CONTENTS
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SECTION EM
A
EM
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Procedures without Cowl Top Cover ..... 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 3
OPERATION PROCEDURE ................................. 3
Precautions for Drain Coolant .................................. 4
Precautions for Disconnecting Fuel Piping .............. 4
Precautions for Removal and Disassembly ............. 4
Precautions for Inspection, Repair and Replace-
ment ......................................................................... 4
Precautions for Assembly and Installation ............... 4
Parts Requiring Angular Tightening ......................... 4
Precautions for Liquid Gasket .................................. 5
REMOVAL OF LIQUID GASKET SEALING .......... 5
LIQUID GASKET APPLICATION PROCEDURE ..... 5
PREPARATION ........................................................... 7
Special Service Tools ............................................... 7
Commercial Service Tools ........................................ 9
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ...............................................11
NVH Troubleshooting — Engine Noise ...................11
Use the Chart Below to Help You Find the Cause
of the Symptom. ..................................................... 12
DRIVE BELTS ........................................................... 13
Components ........................................................... 13
Checking Drive Belts .............................................. 13
Tension Adjustment ................................................ 13
Removal and Installation ........................................ 13
REMOVAL ........................................................... 13
INSTALLATION ................................................... 14
Components ........................................................... 14
Removal and Installation of Drive Belt Auto-Ten-
sioner ..................................................................... 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
AIR CLEANER AND AIR DUCT ............................... 16Components ........................................................... 16
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
Changing Air Cleaner Filter .................................... 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 17
INSTALLATION ................................................... 17
INTAKE MANIFOLD ................................................. 18
Components ........................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ................ 20
EXHAUST MANIFOLD ............................................. 21
Components ........................................................... 21
Removal and Installation ........................................ 21
REMOVAL ........................................................... 21
INSPECTION AFTER REMOVAL ....................... 22
INSTALLATION ................................................... 22
OIL PAN .................................................................... 24
Components ........................................................... 24
Removal and Installation ........................................ 24
REMOVAL ........................................................... 24
INSPECTION AFTER REMOVAL ....................... 26
INSTALLATION ................................................... 26
IGNITION COIL, SPARK PLUG AND ROCKER
COVER ...................................................................... 30
Components ........................................................... 30
Removal and Installation ........................................ 30
REMOVAL ........................................................... 30
INSPECTION AFTER REMOVAL ....................... 31
INSTALLATION ................................................... 31
FUEL INJECTOR AND FUEL TUBE ........................ 33
Components ........................................................... 33
Removal and Installation ........................................ 33
REMOVAL ........................................................... 33
INSTALLATION ................................................... 35
TIMING CHAIN .......................................................... 37
EM-2Revision: June 20062007 Versa Components ........................................................... 37
Removal and Installation ........................................ 38
REMOVAL ........................................................... 38
INSPECTION AFTER REMOVAL ........................ 41
INSTALLATION .................................................... 42
CAMSHAFT ............................................................... 47
Components ........................................................... 47
Removal and Installation ........................................ 47
REMOVAL ........................................................... 47
INSPECTION AFTER REMOVAL ........................ 49
INSTALLATION .................................................... 51
INSPECTION AFTER INSTALLATION ................ 54
Valve Clearance ...................................................... 55
INSPECTION ....................................................... 55
ADJUSTMENT .................................................... 57
OIL SEAL .................................................................. 59
Removal and Installation of Valve Oil Seal ............. 59
REMOVAL ........................................................... 59
INSTALLATION .................................................... 59
Removal and Installation of Front Oil Seal ............. 60
REMOVAL ........................................................... 60
INSTALLATION .................................................... 60
Removal and Installation of Rear Oil Seal .............. 61
REMOVAL ........................................................... 61
INSTALLATION .................................................... 61
CYLINDER HEAD ..................................................... 62
On-Vehicle Service ................................................. 62
CHECKING COMPRESSION PRESSURE ......... 62
Components ........................................................... 63
Removal and Installation ........................................ 63
REMOVAL ........................................................... 63
INSPECTION AFTER REMOVAL ........................ 64
INSTALLATION .................................................... 65
Components ........................................................... 66
Disassembly and Assembly .................................... 66
DISASSEMBLY ................................................... 66
ASSEMBLY ......................................................... 67
Inspection After Disassembly ................................. 68
VALVE DIMENSIONS .......................................... 68
VALVE GUIDE CLEARANCE .............................. 68
VALVE GUIDE REPLACEMENT ......................... 69
VALVE SEAT CONTACT ..................................... 70
VALVE SEAT REPLACEMENT ........................... 70
VALVE SPRING SQUARENESS ......................... 71
VALVE SPRING DIMENSIONS AND VALVE
SPRING PRESSURE LOAD ............................... 72
ENGINE ASSEMBLY ................................................ 73
Components ........................................................... 73
Removal and Installation ........................................ 73
REMOVAL ........................................................... 74
INSTALLATION .................................................... 76
INSPECTION AFTER INSTALLATION ................ 76
CYLINDER BLOCK ................................................... 77
Components ........................................................... 77
Disassembly and Assembly .................................... 78
DISASSEMBLY ................................................... 78ASSEMBLY ..........................................................81
How to Select Piston and Bearing ..........................87
DESCRIPTION ....................................................87
HOW TO SELECT PISTON .................................87
HOW TO SELECT CONNECTING ROD BEAR-
ING .......................................................................88
HOW TO SELECT MAIN BEARING ....................91
Inspection After Disassembly ..................................95
CRANKSHAFT END PLAY ..................................95
CONNECTING ROD SIDE CLEARANCE ...........95
PISTON TO PISTON PIN OIL CLEARANCE .......95
PISTON RING SIDE CLEARANCE .....................96
PISTON RING END GAP ....................................96
CONNECTING ROD BEND AND TORSION .......97
CONNECTING ROD BIG END DIAMETER ........97
CONNECTING ROD BUSHING OIL CLEAR-
ANCE ...................................................................97
CYLINDER BLOCK TOP SURFACE DISTOR-
TION ....................................................................98
MAIN BEARING HOUSING INNER DIAMETER ...98
PISTON TO CYLINDER BORE CLEARANCE ....99
CRANKSHAFT MAIN JOURNAL DIAMETER ... 100
CRANKSHAFT PIN JOURNAL DIAMETER ...... 100
OUT-OF-ROUND AND TAPER OF CRANK-
SHAFT ............................................................... 100
CRANKSHAFT RUNOUT .................................. 100
CONNECTING ROD BEARING OIL CLEAR-
ANCE ................................................................. 101
MAIN BEARING OIL CLEARANCE ................... 101
MAIN BEARING CRUSH HEIGHT .................... 102
CONNECTING ROD BEARING CRUSH
HEIGHT ............................................................. 102
MAIN BEARING CAP BOLT OUTER DIAMETER . 103
CONNECTING ROD BOLT OUTER DIAMETER . 103
CLOGGED OR DAMAGED OIL FILTER (FOR
INTAKE VALVE TIMING CONTROL) ................. 103
FLYWHEEL DEFLECTION (M/T MODELS) ...... 103
MOVEMENT AMOUNT OF FLYWHEEL (M/T
MODELS) ........................................................... 103
SERVICE DATA AND SPECIFICATIONS (SDS) .... 105
Standard and Limit ................................................ 105
GENERAL SPECIFICATIONS ........................... 105
DRIVE BELT ...................................................... 105
WATER CONTROL VALVE ................................ 105
EXHAUST MANIFOLD ...................................... 105
THERMOSTAT ................................................... 105
SPARK PLUG .................................................... 105
CYLINDER HEAD .............................................. 105
VALVE ................................................................ 106
CAMSHAFT AND CAMSHAFT BEARING ......... 109
CYLINDER BLOCK ............................................110
PISTON, PISTON RING AND PISTON PIN ...... 111
CONNECTING ROD ..........................................112
CRANKSHAFT ...................................................112
MAIN BEARING .................................................114
CONNECTING ROD BEARING .........................114
EM-8Revision: June 2006
PREPARATION
2007 Versa
ST16610001
(J-23907)
Pilot bushing pullerRemoving crankshaft pilot bushing
KV11103000
(—)
Pulley pullerRemoving crankshaft pulley
KV991J0050
(J-44626)
Air fuel sensor SocketLoosening or tightening air fuel ratio A/F
sensor
a: 22 mm (0.87 in)
KV10114400
(J-38365)
Heated oxygen sensor wrenchLoosening or tightening rear heated oxy-
gen sensor
a: 22 mm (0.87 in)
KV11105210
(J-44716)
Stopper plateSecuring diveplate and flywheel
KV10115600
(J-38958)
Valve oil seal driftInstalling valve oil seal
Use side A.
a: 20 (0.79) dia
b: 13 (0.51) dia.
c: 10.3 (0.406) dia
d: 8 (0.31) dia.
e: 10.7 (0.421)
f: 5 (0.20)
KV10115801
(—)
Oil filter wrenchRemoving and installing oil filter
a: 64.3 mm (2.531 in) Tool number
(Kent-Moore No.)
Tool nameDescription
NT045
NT676
LBIA0444E
NT636
ZZA0009D
S-NT603
S-NT375
EM-24Revision: June 2006
OIL PAN
2007 Versa
OIL PANP F P : 1111 0
ComponentsEBS00U7G
Removal and InstallationEBS00U7H
REMOVAL
WAR NIN G:
Be careful not to burn yourself, as the engine oil is hot.
Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct
skin contact with used oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1. Oil level gauge 2. Oil level gauge guide 3. Rear oil seal
4. O-ring 5. Oil pan (upper) 6. Oil pump drive chain
7. Crankshaft sprocket 8. Oil pump sprocket 9. Timing chain tensioner (for oil pump)
10. Oil pump 11. Drain plug 12. Drain plug washer
13. Oil pan (lower) 14. Oil filter 15. Connector bolt
16. O-ring
A. Refer to EM-26
: Oil pan side
PBIC4482E
OIL PAN
EM-25
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EM
Revision: June 20062007 Versa
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
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