2006 NISSAN VERSA ignition

EM-30Revision: June 2006
IGNITION COIL, SPARK PLUG AND ROCKER COVER
2007 Versa
IGNITION COIL, SPARK PLUG AND ROCKER COVERPFP:22448
ComponentsEBS00U7I
Removal and InstallationEBS00U7J
REMOVAL
1. Remove intake manifold. Refer to EM-18, "INTAKE MANIFOLD" .
2. Remove ignition coil.
CAUTION:

Handle it carefully and avoid impacts.

Never disassemble.
3. Remove spark plug using suitable tool.
CAUTION:
Never drop or shock it.
1. PCV hose 2. Rocker cover 3. Spark plug
4. Ignition coil 5. PCV hose 6. PCV valve
7. O-ring 8. Gasket
A. To air duct B. Refer to EM-31
. C. To intake manifold
PBIC3536J
PBIC3871E

IGNITION COIL, SPARK PLUG AND ROCKER COVER
EM-31
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Revision: June 20062007 Versa
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

EM-32Revision: June 2006
IGNITION COIL, SPARK PLUG AND ROCKER COVER
2007 Versa
3. Insrtall spark plug using suitable tool.
CAUTION:
Never drop or shock it.
4. Install ignition coil.
CAUTION:

Handle it carefully and avoid impacts.

Never disassemble.
5. Install intake manifold. Refer to EM-18, "
INTAKE MANIFOLD" . Plug type : Iridium tipped
Make : DENSO
Part number : FXE20HR11
Gap (nominal) : 1.1 mm (0.043 in)
PBIC3871E

EM-48Revision: June 2006
CAMSHAFT
2007 Versa

Rocker cover; Refer toEM-30, "IGNITION COIL, SPARK PLUG AND ROCKER COVER" .

Fuel tube and fuel injector assembly; Refer to EM-33, "FUEL INJECTOR AND FUEL TUBE" .

Front cover, timing chain and related parts; Refer to EM-37, "TIMING CHAIN" .
7. Remove camshaft position sensor (PHASE) from camshaft bracket.
CAUTION:

Handle carefully to avoid dropping and shocks.

Never disassemble.

Never allow metal powder to adhere to magnetic part at sensor tip.

Never place sensor in a location where it is exposed to magnetism.
8. Put the matching mark (A) on the camshaft sprocket (INT) (2)
and the camshaft bracket (1) as shown.
NOTE:
It prevents the knock pin of the camshaft (INT) from engaging
with the incorrect pin hole when installing the camshaft sprocket
(INT).
9. Remove camshaft sprockets (INT) (1) and (EXH) (2).

Secure hexagonal part (A) of camshaft with a wrench. Loosen
camshaft sprocket bolts and remove camshaft sprocket.
CAUTION:

Never rotate crankshaft or camshaft while timing chain
is removed. It causes interference between valve and
piston.

Never loosen the bolts with securing anything other
than the camshaft hexagonal part or with tensioning
the timing chain.
10. Loosen bolts in reverse order as shown.
11. Cut liquid gasket by prying the position ( ) shown, and then
remove the camshaft bracket.
CAUTION:

Be careful not to damage the mating surface.

A more adhesive liquid gasket is applied compared to
previous types when shipped, so it should not be forced
off the position not specified.
: Engine front
PBIC3992J
PBIC3454J
: Engine front
PBIC3176J
: Engine front
PBIC3358J

EM-54Revision: June 2006
CAMSHAFT
2007 Versa
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-37, "
TIMING CHAIN" .
12. Inspect and adjust valve clearance. Refer to EM-55, "
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 including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to GI-46, "
Recommended Chemical Products and Sealants" .

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.
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 leakage 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-II
and it is directed according to inspection procedure of EC section. Refer to EC-47, "
ON BOARD
DIAGNOSTIC (OBD) SYSTEM" .

Check when engine is cold so as to prevent burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-5, "
ENGINE OIL LEVEL" .
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Remove intake manifold. Refer to EM-18, "
Components" .
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 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 —

CAMSHAFT
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Revision: June 20062007 Versa
b. Disconnect ignition coil and injector harness connectors.
3. Remove intake valve timing control solenoid valve. Refer to EM-37, "
Components" .
4. Clean the mating area of intake valve timing control solenoid
valve. Insert a clean shop cloth (with no oil adhesion) into the oil
hole (A) of the cylinder head.
5. Install engine mounting bracket (RH), engine mounting insulator,
and torque rod (RH) under the Step 4 condition. (With intake
valve timing control solenoid valve removed, and a shop cloth
inserted into the oil hole.) Refer to EM-73, "
Components" .
6. Crank engine, and then make sure that engine oil comes out
from intake valve timing control solenoid valve hole (A). End crank after checking.

Check engine oil leakage by oil amount adhered to the waste inserted into the oil hole.
WAR NIN G:
Be careful not to touch rotating parts (drive belts, idler pulley, and crankshaft pulley, etc.).
CAUTION:

Do not perform cranking without installing right engine mount bracket, right engine mount insu-
lator, and right torque rod.

Prevent splashing by using a shop cloth so as to prevent the worker from injury from engine oil
and so as to prevent engine oil contamination.

Prevent splashing by using a shop cloth so as to prevent engine oil from being splashed to
engine and vehicle. Especially, be careful not to apply engine oil to rubber parts of drive belts,
engine mounting insulator, etc. Wipe engine oil off immediately if it is splashed.
7. Perform the following inspection if engine oil does not come out from intake valve timing control solenoid
valve oil hole of the cylinder head.

Remove oil filter (for intake valve timing control), and then clean it. Refer to EM-77, "Components" .

Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-4,
"LUBRICATION SYSTEM" .
8. Remove components between intake valve timing control solenoid valve and camshaft sprocket (INT),
and then check each oil groove for clogging.

Clean oil groove if necessary. Refer to LU-4, "LUBRICATION SYSTEM" .
9. Installation of the remaining components is in the reverse order of removal
Valv e C le aranceEBS00U7Q
INSPECTION
Perform inspection as follows after removal, installation or replacement of camshaft or valve-related parts, or if
there is unusual engine conditions regarding valve clearance.
1. Remove rocker cover. Refer to EM-30, "
IGNITION COIL, SPARK PLUG AND ROCKER COVER" .
2. Measure the valve clearance with the following procedure:
a. Set No. 1 cylinder at TDC of its compression stroke.

Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front
cover.
1 : Front cover
:Vehicle front
WBIA0781E
C : White paint mark (Not use for service)
PBIC3960E

EM-62Revision: June 2006
CYLINDER HEAD
2007 Versa
CYLINDER HEADPFP:11041
On-Vehicle ServiceEBS00T6K
CHECKING COMPRESSION PRESSURE
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-81, "
FUEL PRESSURE RELEASE" .
3. Disconnect fuel pump fuse (1) to avoid fuel injection during mea-
surement.
4. Remove engine cover. Refer to EM-18, "
Components" .
5. Remove ignition coil and spark plug from each cylinder. Refer to EM-30, "
IGNITION COIL, SPARK PLUG
AND ROCKER COVER" .
6. Connect an engine tachometer (not required in use of CONSULT-II).
7. Install a suitable compression tester with an adapter onto spark
plug hole.

Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
8. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
Compression pressure:
Unit: kPa (bar, kg/cm2 psi) /rpm
CAUTION:
Always use fully a changed battery to obtain the specified engine speed.
: Vehicle front
PBIA9861J
LBIA0459E
SBIA0533E
Standard Minimum Differential limit between cylinders
1,500 (15.0, 15.3, 217.6) / 200 1,200 (12.0, 12.2, 174) / 200 100 (1, 1, 15) / 200

EM-64Revision: June 2006
CYLINDER HEAD
2007 Versa

Water outlet; Refer to CO-20, "WATER OUTLET AND WATER CONTROL VALVE" .

Rocker cover; Refer to EM-30, "IGNITION COIL, SPARK PLUG AND ROCKER COVER" .

Front cover, timing chain; Refer to EM-37, "TIMING CHAIN" .

Camshaft; Refer to EM-47, "CAMSHAFT" .
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, replace them with a new one.

If reduction of outer diameter appears 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-98, "
CYLIN-
DER BLOCK TOP SURFACE DISTORTION" .
1. Wipe off engine oil and remove water scale (like deposit), gasket, sealant, carbon, etc. with a scraper.
CAUTION:
Use utmost care not to allow gasket debris to enter passages for engine oil or water.
2. At each of several locations on bottom surface of cylinder head,
measure the distortion in six directions using straightedge (A)
and feeler gauge (B).

If it exceeds the limit, replace cylinder head.
: Engine front
PBIC3206J
Limit (“d1” – “d2”): 0.15 mm (0.0059 in)
PBIC3994E
Limit: 0.1 mm (0.004 in)
PBIC3207J