NISSAN LATIO 2010 Service Repair Manual

EM-52
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TIMING CHAIN
12. Remove the timing chain tension guide (2) and the timing chain
slack guide (1).
13. Remove the timing chain (2). • Pull the looseness of timing chain toward the camshaft
sprocket (EXH) (1), and then remove the timing chain (2) and
start the removal from camshaft sprocket (EXH) (1) side.
CAUTION:
Never rotate crankshaft or camshaft while timing chain is
removed. It causes interferen ce between valve and piston.
14. Remove the crankshaft sprocket and the oil pump drive related parts with the following procedure.
a. Remove chain tensioner (1). • Pull out from the shaft (B) and spring fixing holes (A).
b. Hold the top of the oil pump s haft using the TORX socket (size:
E8), and then loosen the oil pump sprocket nut and remove it.
c. Remove the crankshaft sprocket (1), the oil pump drive chain (2), and the oil pump sprocket (3) at the same time.
INSTALLATION
NOTE:
PBIC3714E
PBIC3715E
PBIC3716E
PBIC3720E
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The illustration shows the relationship between the matching mark
on each timing chain and that on the corresponding sprocket, with
the components installed.
1. Install the crankshaft sprocket and the oil pump drive related parts with the following procedure:
a. Install the crankshaft sprocket (1), the oil pump drive chain (2),
and the oil pump sprocket (3) at the same time.
• Install the crankshaft sprocket (1) so that its invalid gear area(A) is towards the back of the engine.
• Install the oil pump sprocket (3) so that its hexagonal surface
faces (B) the front of engine.
NOTE:
There is no matching mark in the oil pump drive related parts.
b. Hold the top of the oil pump shaft using the TORX socket (size: E8), and then tighten the oil pump sprocket nuts.
1 : Timing chain
2 : Camshaft sprocket (EXH)
3 : Timing chain slack guide
4 : Chain tensioner
5 : Oil pump drive chain
6 : Oil pump sprocket
7 : Crankshaft sprocket
8 : Timing chain tension guide
9 : Camshaft sprocket (INT)
A : Dark blue link
B : Matching mark (stamp)
C : Orange link
D : Matching mark (stamp)
E : Crankshaft key (point straight up)
F : Matching mark (peripheral stamp line)
G : Dark blue link
PBIC3718E
: Engine front
PBIC3719E
1 : Crankshaft sprocket
2 : Oil pump drive chain
3 : Oil pump sprocket
PBIC3720E
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EM-54
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TIMING CHAIN
c. Install chain tensioner (1).
• Insert the body into the shaft (B) while inserting the spring intothe fixing hole (A) of cylinder block front surface.
• Make sure that the tension is applied to the oil pump drive chain after installing.
2. Install timing chain with the following procedure.
• Install by aligning matching marks on each sprocket and tim-ing chain.
• If these matching marks are not aligned, rotate the camshaft slightly to correct the position.
CAUTION:
• Check matching mark positi on of each sprocket and tim-
ing chain again after instal ling the timing chain, keep
matching marks aligned by holding them with a hand.
• To avoid skipped teeth, never rotate crankshaft and cam-
shaft until front cover is installed.
3. Install timing chain tension guide (2) and timing chain slack guide (1).
4. Install chain tensioner (1). • Secure the plunger at the most compressed position using astopper pin (A), and then install it.
• Pull out the stopper pin after installing the chain tensioner.
PBIC3716E
A : Dark blue link
B : Matching mark (stamp)
C : Orange link
D : Matching mark (stamp)
E : Crankshaft key (point straight up)
F : Matching mark (peripheral stamp line)
G : Dark blue link
PBIC3721E
PBIC3714E
PBIC3722E
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5. Check matching mark position of timing chain and each sprocket again.
6. Pull out the stopper pin (A), and then apply the tension to the
timing chain by rotating the crankshaft pulley clockwise slightly.
7. Return the camshaft sprocket (INT) in the most retarded position with the following procedure.
a. Remove the stopper pin (A) from the camshaft sprocket (INT).
b. Turn the crankshaft slowly clockwise and return t he camshaft sprocket (INT) to the most retarded angle
position.
• When first turning the crankshaft the camshaft sprocket (INT)
will turn. Once it is turned more, and the vane (camshaft) also
turns, then it has reached t he most retarded angle position.
• The most retarded angle position can be checked by seeing if the stopper pin groove (A) is shifted clockwise.
• After spinning the crankshaft slightly in the counterclockwise
direction, you can make sure the lock pin has joined by seeing
if the vane (camshaft) and the sprocket move together.
8. Install the front oil seal to the front cover. Refer to EM-71, "
FRONT OIL SEAL : Removal and Installation"
9. Install front cover with the following procedure:
1 : Plunger
2 : Chain tensioner
B: Lever
C: Lever hole
D : Front cover has been omitted
PBIC3772E
B: Tape
AWBIA0107ZZ
B : Stopper pin hole
C : Most advanced angle
D : Most retarded angle (lock pin engaged)
PBIC3705E
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EM-56
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TIMING CHAIN
a. Apply a continuous bead of liquid gasket with Tool to front of
engine as shown.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
b. Apply a continuous bead of liquid gasket with Tool to front cover as shown.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
1 : Cylinder head
2 : Cylinder block
3 : Oil pan (upper)
A : Liquid gasket application φ 3.0 - 4.0 mm (0.12 - 0.16 in) dia.
Tool number : WS39930000 ( — )
PBIC3724E
A : Liquid gasket application φ 3.0 - 4.0 mm (0.12 - 0.16 in) dia.
Tool number : WS39930000 ( — )
PBIC3725E
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c. Tighten bolts in the numerical order shown.
d. After all bolts are tightened, retighten them to specified torque in
numerical order as shown.
CAUTION:
Be sure to wipe off any excessive liquid gasket leaking to
surface.
10. Insert crankshaft pulley by aligning with crankshaft key. • When inserting crankshaft pulley with a plastic hammer, tap on its center portion (not circumference).
CAUTION:
Never damage front oil seal lip section.
11. Tighten crankshaft pulley bolt with the following procedure: • 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.
12. Make sure that crankshaft turns smoothly by rotating by hand clockwise.
13. Installation of the remaining components is in the reverse order of removal.
InspectionINFOID:0000000005398066
INSPECTION AFTER REMOVAL
Timing Chain
KBIA3429J
Crankshaft pulley bolt : 35.0 N·m (3.6 kg-m, 26 ft-lb)
PBIC3726E
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EM-58
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TIMING CHAIN
Check for cracks (A) and any excessive wear (B) at link plates and
roller links of timing chain. Replace timing chain as necessary.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
• 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-14, "
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 leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside chain tensioner drops af ter removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. 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:
* Transaxle fluid, power steering fluid, brake fluid, etc.
JPBIA0091ZZ
Items Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
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CAMSHAFTEM-59
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CAMSHAFT
Exploded ViewINFOID:0000000005398067
Removal and InstallationINFOID:0000000005398068
CAUTION:
The rotation direction in the
text indicates all directions seen from the engine front.
REMOVAL
1. Remove timing chain. Refer to EM-49, "Removal and Installation".
2. Remove camshaft position sensor (PHASE) from rear end of cylinder head. CAUTION:
Handle it carefully and avoid impacts.
1. Camshaft bracket (No. 2 to 5) 2. Camshaft bracket (No.1) 3. Camshaft sprocket (EXH)
4. Camshaft sprocket (INT) 5. Cylinder head 6. Oil filter (for intake valve timing control)
7. Washer 8. Plug 9. Intake valve timing control solenoid valve
10. O-ring 11. O-ring 12. Camshaft position sensor (PHASE)
13. Valve lifter 14. Camshaft (INT) 15. Camshaft (EXH)
A. Refer to Installation procedure
PBIC3672E
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EM-60
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CAMSHAFT
3. Remove camshaft sprocket (EXH) bolt and camshaft sprocket
(EXH) (1).
CAUTION:
• Hold the camshaft hexagonal part (A), and then secure the
camshaft.
• Never rotate crankshaft and camshaft separately, so as
not to contact valve with pist on in the following steps.
4. Turn the camshaft sprocket (INT) to the most advanced position. CAUTION:
Installation and removal of the camshaft sprocket (INT) must be done in the most advanced posi-
tion for the following reasons.
• The sprocket (C) and vane ( camshaft coupling) (B) are
designed to spin and move wi thin the range of a certain
angle.
• With the engine stopped and the vane in the most
retarded angle, it will not sp in because it is locked to the
sprocket side by the internal lock pin (A).
• If the camshaft sprocket bolts are turned in the situation
described above, the lock pi n will become damaged and
cause malfunctions because of the increased horizontal
load (cutting force) on the lock pin.
a. Remove camshaft bracket (No. 1) (1). • Loosen the bolts in several steps, and then remove them.
b. Apply the following air pressure to the No. 1 journal oil hole (A) of camshaft (INT) (1) shown using an air gun.
• Apply the air pressure into the oil hole on the second groovefrom the front of camshaft thrust.
• Proceed all the way through step “e” with the air pressure on.
ALBIA0659ZZ
PBIC3679E
: Engine front
ALBIA0660ZZ
Pressure : 300 kPa (3.0 bar, 3.1 kg/cm2, 44 psi) or more
ALBIA0661ZZ
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• Attach the rubber nozzle narrowed to the top of the air gun to
prevent air leakage from the oil hole. Securely apply the air
pressure to the oil hole (A).
CAUTION:
• There are other oil holes in the side grooves. Never use the incorrect oil holes.
• Be sure not to damage the oil path 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 wiped wi th a rag when applying air
pressure. Eye protection should be worn as needed.
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-
natively.
• Finally rotate the sprocket of the camshaft sprocket (INT) counterclockwise [the direction shown by the
arrow ( )].
• Perform the work while applying the air pressure to the oil hole.
• If the lock pin is not released by hands, tap the camshaft sprocket (INT) (1) lightly with a plastic hammer.
• If the camshaft sprocket (INT) (1) is not rotated counterclock- wise 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.
• Make sure that it is in the most advanced angle position by seeing if the stopper pin groove (A) and the stopper pin hole (B) are matched up as shown.
e. Complete the applying procedure of air pressu re and the holding procedure of camshaft (INT).
f. Insert the stopper pin (A) into the stopper pin holes in the cam- shaft sprocket (INT) (1) and lock in the most advanced angle
position.
CAUTION:
No load is exerted on the stop per pin (spring reaction, etc.).
Since it comes out easily, secure it with tape (B) to prevent
it from coming out.
NOTE:
The stopper pin shows one example of a hexagonal wrench for
2.5 mm (0.098 in) [length of inserted section: approximately 15
mm (0.59 in)].
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C : Most retarded angle (lock pin engaged)
D : Most advanced angle
PBIC3684E
ALBIA0664ZZ
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