EM-54
< REMOVAL AND INSTALLATION >[HR16DE]
TIMING CHAIN
b. Cut liquid gasket by prying the position ( ) as shown, and then
remove the front cover.
12. Remove front oil seal from front cover using a suitable tool. CAUTION:
Be careful not to damage the front cover.
13. Remove chain tensioner (1):
a. Fully push down the chain tensioner lever (A), and then push the plunger (C) into the inside of tensioner.
• The tab (B) is released by fully pushing the lever down. Thenthe plunger can be moved.
b. Pull up the lever to align its hole position with the body hole posi- tion.
• When the lever hole is aligned with the body hole position, theplunger is secured.
• When the protrusion parts of the plunger ratchet and the tab face each other, both hole positions are not aligned. At that
time, correctly engage them and align these hole positions by
slightly moving the plunger.
c. Insert the stopper pin (D) into the body hole through the lever hole, and then secure the lever at the upper position.
NOTE:
A hexagonal wrench of 2.5 mm (0.098 in) is used as a stopper pin (D).
d. Remove chain tensioner.
14. Remove the timing chain tension guide (2) and the timing chain slack guide (1).
15. Remove the timing chain (2). • Pull the timing chain slack toward the camshaft sprocket
(EXH) (1), and then remove the timing chain and start the
removal from camshaft sprocket (EXH) side.
CAUTION:
Do not rotate crankshaft or camshaft while timing chain is
removed. It causes interferen ce between valve and piston.
16. Remove the crankshaft sprocket and the oil pump drive:
JPBIA4140ZZ
PBIC3713E
JPBIA4141ZZ
JPBIA4142ZZ
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TIMING CHAINEM-59
< REMOVAL AND INSTALLATION > [HR16DE]
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• Secure crankshaft pulley with a suitable tool and tighten crankshaft pulley bolt.
a. Apply new engine oil to thread and seat surfaces of crankshaft pulley bolt.
b. Tighten crankshaft pulley bolt.
c. Put a paint mark (B) on crankshaft pulley, mating with any one of six easy to recognize angle marks (A) on crankshaft bolt flange
(1).
d. Turn another 60 degrees clockwise (angle tightening). • Check the tightening angle with movement of one angle mark.
10. Check that crankshaft turns smoothly by rotating by hand clockwise using suitable tool.
11. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
• Before starting engine, check oil/fluid levels, includi ng engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks at connection points.
• Start engine. With engine speed increased, check again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and 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 are no lea ks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
Crankshaft pulley bolt : 35.0 N·m (3.6 kg-m, 26 ft-lb)
PBIC3726E
ItemBefore starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaks Leaks
Exhaust gas —Leaks —
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EM-62
< REMOVAL AND INSTALLATION >[HR16DE]
CAMSHAFT
• Be sure not to damage the oil pa
th with the tip of the air gun.
• Wipe all the oil off the air gun to prevent oil from being blown all over along with the air, and the
area around the air gun should be wipe d with a rag when applying air pressure.
NOTE:
The air pressure is used to move the lock pin into the disengage position.
c. Hold the camshaft sprocket (INT) with hands, and then apply the power counterclockwise/clockwise alter- nately.
• Finally rotate the sprocket of the camshaft sprocket (INT)
counterclockwise [the direction shown by the arrow ( )].
• Perform the work while continuously applying the air pressure to the oil hole.
• If the lock pin is not released, tap the camshaft sprocket (INT) lightly with a plastic hammer (A) using suitable tool.
• If the camshaft sprocket (INT) is not rotated counterclockwise
even if the above procedures are performed, check the air
pressure and the oil hole position.
d. While doing the above, once you hear a click (the sound of the internal lock pin disengaging) from inside the camshaft sprocket
(INT), start turning the camshaft sprocket (INT) in the counter-
clockwise direction in the most advanced angle position.
• Keep the air pressure on.
• If there is no click, as soon as the vane side (camshaft side)starts moving independently of the sprocket, the lock pin has
become disengaged.
• Check that it is in the most advanced angle positi on by seeing if the stopper pin groove (A) and the stop-
per pin hole (B) are matched up as shown.
e. Stop applying air pressure and release the camshaft (INT).
f. Insert the stopper pin (A) into the stopper pin holes in the cam- shaft sprocket (INT) and lock in the most advanced angle posi-
tion.
CAUTION:
No load is exerted on the stopper pin (spring reaction, etc.).
Since it comes out easily, secure it with tape (B) to prevent
it from falling out.
NOTE:
The stopper pin shows one example of a hexagonal wrench for
2.5 mm (0.098 in) [length of inse rted section: approximately15
mm (0.59 in)].
(A) : Air gun
(B) : Rubber nozzle
JPBIA4151ZZ
JPBIA4152ZZ
(A/B) : Lock pin recess
(C) : Lock pin engaged
(D) : Most advanced angle
PBIC3684E
JPBIA4153ZZ
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EM-68
< REMOVAL AND INSTALLATION >[HR16DE]
CAMSHAFT
• 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, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and 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 s of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc.
InspectionINFOID:0000000012431722
INSPECTION AFTER REMOVAL
Oil Filter
• Check that there is no foreign material on the oil filter (1) and check it for clogging.
• Check the oil filter for damage.
• If there is some damage, replace the oil filter, the plug, and the washer as a set.
CAUTION:
Do not reuse the washer.
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour- nals of camshaft.
CAUTION:
Do not support No. 1 journal (on the side of camshaft
sprocket) because it has a differe nt diameter from the other
four locations.
2. Set a suitable tool vertically to No. 3 journal.
3. Turn camshaft to one direction, and measure the camshaft runout using suitable tool. (Total indicator reading)
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
PBIC3693E
PBIC2499E
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EM-84
< REMOVAL AND INSTALLATION >[HR16DE]
CYLINDER HEAD
5. Using a suitable tool finish valve seat to the specified dimen-
sions. For dimensions, refer to MA-11, "
Fluids and Lubricants".
CAUTION:
When using a valve seat cutter, firmly grip the cutter handle
with both hands. Then, pr ess the contacting surface evenly
around the valve seat to cut in a single attempt. Improper
pressure or cutting several times may result in wavy valve
seat.
6. Using compound, grind to adjust valve fitting.
7. Check again for normal contact. Refer to "VALVE SEAT CONTACT".
VALVE SPRING SQUARENESS
• Set a tri-square (A) along the side of valve spring and rotate spring. Measure the maximum clearance between the top of spring and
tri-square.
• If it exceeds the limit, replace valve spring.
VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
• Check valve spring pressure with valve spring seat installed at the specified spring height.
CAUTION:
Do not remove valve spring seat from valve spring.
• If the installation load or load with valve open is out of the stan- dard, replace valve spring (with valve spring seat).
INSPECTION AFTER INSTALLATION
• 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-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and 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 are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
SEM934C
(B) : Contact
Limit : Refer to EM-119, "Cylinder head".
PBIC3219J
Standard : Refer to EM-119, "Cylinder head".
SEM113
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CYLINDER HEADEM-85
< REMOVAL AND INSTALLATION > [HR16DE]
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*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaks Leaks
Exhaust gas —Leaks —
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EM-90
< UNIT REMOVAL AND INSTALLATION >[HR16DE]
ENGINE ASSEMBLY
• 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-11, "
Fluids and Lubricants".
• Use procedure below to check for fuel leaks.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leaks
at connection points.
• Start engine. With engine speed increased, che ck again for fuel leaks at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and 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 are no l eaks of fuel, exhaust gas, or any oils/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to spec- ified level, if necessary.
• Summary of the inspection items:
*Power steering fluid, brake fluid, etc. Item
Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeaks Level
Engine oil LevelLeaks Level
Transmission/
transaxle fluid CVT Models
LeaksLevel/Leaks Leaks
M/T Models Level/Leaks LeaksLevel/Leaks
Other oils and fluids* LevelLeaks Level
Fuel LeaksLeaksLeaks
Exhaust gas —Leaks —
Revision: August 2015 2016 Versa Note
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COMPONENT PARTSEC-23
< SYSTEM DESCRIPTION > [HR16DE]
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Exhaust Valve Timing Control Solenoid ValveINFOID:0000000012431286
Exhaust valve timing control solenoi
d valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The exhaust valve timing control solenoid valve changes the oil
amount and direction of flow through exhaust valve timing control
unit or stops oil flow.
The longer pulse width retards valve angle.
The shorter pulse width advances valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the exhaust valve angle at the control
position.
Fuel InjectorINFOID:0000000012431287
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the injection pulse dura-
tion. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.
Fuel PumpINFOID:0000000012431288
*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for a few seconds after the ignition switch is turned ON to improve engine
start ability. If the ECM receives a engine speed signal from the crankshaft position sensor (POS) and cam-
shaft position sensor (PHASE), it knows that the engi ne is rotating, and causes the pump to operate. If the
engine speed signal is not received when the ignition s witch is ON, the engine stalls. The ECM stops pump
operation and prevents battery discharging, thereby improving safety. The EC M does not directly drive the fuel
pump. It controls the ON/OFF fuel pump rela y, which in turn controls the fuel pump.
JSBIA0652ZZ
JSBIA0742ZZ
SensorInput signal to ECMECM functionActuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
Fuel pump controlFuel pump relay
↓
Fuel pump
Battery Battery voltage*
Condition Fuel pump operation
Ignition switch is turned to ON. Operates for 1 second.
Engine running and cranking Operates.
When engine is stopped Stops in 1.5 seconds.
Except as shown above Sto ps .
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