NISSAN LATIO 2011 Service Repair Manual

CAMSHAFTEM-61
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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)].
ALBIA0662ZZ
ALBIA0663ZZ
C : Most retarded angle (lock pin engaged)
D : Most advanced angle
PBIC3684E
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EM-62
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CAMSHAFT
5. Remove camshaft sprocket (INT) bolt and camshaft sprocket
(INT) (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.
6. Remove camshaft brackets (No. 2 to 5). • Loosen bolts in several steps in the reverse of the order
shown.
NOTE:
The camshaft bracket (No. 1) has been already removed.
7. Remove camshaft (EXH).
8. Remove camshaft (INT). CAUTION:
Never damage the signal plate of rear end.
9. Remove valve lifter. • Identify installation positions, and store them without mixing them up.
10. Remove intake valve timing control solenoid valve (1).
11. Remove the generator and bracket, if necessary, then remove the plug (2), washer and oil filter. Refer to SC-25, "
Removal and
Installation".
CAUTION:
Discard the washer, do not reuse.
INSTALLATION
1. Install the oil filter (1) and new washer (2). • The oil filter is assembled to the plug (3), and then install it tothe cylinder head.
CAUTION:
Do not reuse the washer, install a new washer.
2. Install intake valve timing control solenoid valve. • Insert it straightly into the cylinder head.
• Tighten bolts after placing it completely.
ALBIA0665ZZ
A : EXH side
B: INT side
: Engine front
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CAMSHAFTEM-63
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3. Install valve lifter.
• If it is reused, install in its original positions.
4. Put a matching mark for positioning the camshaft (INT) and the camshaft sprocket (INT) with the following procedure.
NOTE:
It prevents the knock pin from engaging with the incorr ect pin hole after installing the camshaft (INT) and
the camshaft sprocket (INT).
a. Put the matching marks (A) on a line extending from the knock pin position of camshaft (INT) (1) front surface.
• Put the marks on the visible position with the camshaftsprocket installed. (Example shown)
b. Put the matching marks on a line extending from the knock pin hole (B) position of camshaft sprocket (INT) (2). (Example
shown)
• Put the marks on the visible position with it installed to thecamshaft.
5. Install camshafts.
• Distinction between camshaft (INT and EXH) is performed withthe different shapes of rear end.
• Install camshafts to the cylinder head so that knock pins (A) on front end are positioned as shown.
NOTE:
Though camshaft does not stop at the portion as shown, for the
placement of cam nose, it is generally accepted camshaft is
placed for the same direction.
6. Install camshaft brackets (No. 2 to 5) aligning the identification marks on upper surface as shown.
• Install so that identification mark can be correctly read whenviewed from the INT side.
PBIC3696E
1 : Camshaft (EXH)
2 : Camshaft (INT)
A : Identification mark
PBIC3698E
1 : Camshaft (EXH)
2 : Camshaft (INT)
: Upper side
PBIC3699E
A : EXH side
B : INT side
: Engine front
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EM-64
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CAMSHAFT
7. Tighten bolts of camshaft brackets in the following steps, in
numerical order as shown.
a. Tighten No. 9 to 11 in numerical order.
b. Tighten No. 1 to 8 in numerical order.
c. Tighten all bolts in numerical order.
d. Tighten all bolts in numerical order.
8. Install the camshaft sprocket (INT) to the camshaft (INT) with the following procedure.
a. Align the matching mark (A) put according to step “4”. Securely align the knock pin and the pin hole, and then install them.
b. Temporarily tighten the camshaft sprocket (INT) bolt on the front side of camshaft sprocket (INT) (1).
c. Hold the camshaft hexagonal part (A), to secure the camshaft and tighten the bolt.
9. Install the camshaft sprocket (EXH) (1) to the camshaft (EXH) while aligning the matching mark (marked when timing chain is
removed) and the matching mark (stamp) of camshaft sprocket
(EXH).
• If the positions of knock pin and pin groove are not aligned,move the camshaft (EXH) slightly to correct these positions.
• Hold the camshaft hexagonal part (A), to secure the camshaft
and tighten the bolt.
CAUTION:
Make sure that the matching mark (marked when timing
chain is removed) and each camshaft sprocket matching
mark are in the correct location.
A: EXH side
B: INT side
: Engine front
Camshaft bracket bolts (9 - 11) : 1.96 N·m (0.20 kg-m, 17 in-lb)
Camshaft bracket bolts (1 - 8) : 1.96 N·m (0.20 kg-m, 17 in-lb)
Camshaft bracket bolts (all) : 5.88 N·m (0.60 kg-m, 52 in-lb)
Camshaft bracket bolts (all) : 10.4 N·m (1.1 kg-m, 8 ft-lb)
PBIC3686E
PBIC3700E
2 : Camshaft sprocket (INT)
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10. Install timing chain. Refer to
EM-49, "Removal and Installation".
11. Install the camshaft position sensor (PHASE) to the rear end of cylinder head. • Tighten bolts with it seated completely.
12. Check and adjust valve clearance. Refer to EM-19, "
Inspection and Adjustment".
13. Installation of the remaining components is in the reverse order of removal.
InspectionINFOID:0000000005930956
INSPECTION AFTER REMOVAL
Oil Filter
• Make sure that there is no foreign material on the oil filter (1) and check it for clogging.
• Check the oil filter (1) for damage.
• If there is some damage, replace t he oil filter (1), 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:
Never support No. 1 journal (on the side of camshaft
sprocket) because it has a different diameter from the other
four locations.
2. Set a dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on the dial indicator. (Total indicator reading)
4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height with a micrometer (A).
2. If wear exceeds the limit, replace camshaft.
Camshaft Journa l Oil Clearance
CAMSHAFT JOURNAL DIAMETER
PBIC3693E
Standard and Limit:
Refer to EM-112, "
Camshaft".
PBIC2499E
Standard and Cam wear Limit:
Refer to EM-112, "
Camshaft".
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EM-66
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CAMSHAFT
Measure the outer diameter of ca
mshaft journal with a micrometer
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with the specified torque. Refer to EM-59, "
Removal and Installation".
• Measure inner diameter (B) of camshaft bracket with a bore gauge (A).
CAMSHAFT JOURNAL OIL CLEARANCE
• (Oil clearance) = (Camshaft bracket inner diameter) – (Camshaft journal diameter)
• If it exceeds the limit, replace either or both camshaft and cylinder head. NOTE:
Camshaft brackets cannot be replaced as single part s, because they are machined together with cylinder
head. Replace whole cylinder head assembly.
Camshaft End Play
1. Install camshaft in cylinder head. Refer to EM-59, "Removal and Installation".
2. Install a dial indicator (A) in thrust direction on front end of cam- shaft. Measure the camshaft end play on the dial indicator when
camshaft is moved forward/backward (in direction to axis).Standard: Refer to
EM-112, "
Camshaft".
PBIC3179J
Standard: Refer to EM-112, "Camshaft".
PBIC3180J
Standard and Limit: Refer to EM-112, "Camshaft".
Standard and Limit: Refer to EM-112, "
Camshaft".
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• Measure the following parts if out of the standard.
- Dimension “A” for cylinder head No. 1 journal bearing
- Dimension “B” for camshaft thrust
• Follow the standards above, and then replace camshaft and/or
cylinder head.
Camshaft Sprocket Runout
1. Put V-block on precise flat table, and support No. 2 and 5 journals of camshaft. CAUTION:
Never support No. 1 journal (on the side of camshaft sprocket) because it has a different diameter
from the other four locations.
2. Measure the camshaft sprocket runout with a dial indicator. (Total indicator reading)
• If it exceeds the limit, replace camshaft sprocket.
Valve Lifter
Check if surface of valve lifter has any wear or cracks.
• If anything above is found, replace valve lifter. Refer to EM-112,
"Camshaft".
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
Measure the outer diameter of valve lifter with a micrometer (A).
VALVE LIFTER HOLE DIAMETER Standard : 4.000 - 4.030 mm (0.1575 - 0.1587 in)
Standard : 3.877 - 3.925 mm (0.1526 - 0.1545 in)
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Limit: Refer to EM-112, "Camshaft".
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KBIA0182E
Standard: Refer to
EM-112, "Camshaft".
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EM-68
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CAMSHAFT
Measure the diameter of valve lifter hole of cylinder head with an
inside micrometer (A).
VALVE LIFTER CLEARANCE
• (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter)
• If out of the standard, referring to the each standard of va
lve lifter outer diameter and valve lifter hole diame-
ter, replace either or both valve lifter and cylinder head.
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-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.
• Warm up engine thoroughly to make sure there is no leakage 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.
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
• Perform this inspection only when DTC P0011 is de tected in self-diagnostic results of CONSULT-III
and it is directed according to inspect ion procedure of EC section. Refer to EC-135, "
Diagnosis Pro-
cedure".
• Check when engine is cold so as to pr event burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-7, "
Inspection".
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release the fuel pressure. Refer to EC-499, "
Inspection".
b. Remove intake manifold. Refer to EM-27, "
Exploded View".
c. Disconnect ignition coil and injector harness connectors. Refer to EM-46, "
Exploded View".
Standard: Refer to
EM-112, "
Camshaft".
PBIC3184J
Standard: Refer to EM-112, "Camshaft".
Item Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Transmission/
transaxle fluid A/T and CVT Models
LeakageLevel/Leakage Leakage
M/T Models Level/Leakage LeakageLevel/Leakage
Other oils and fluids* LevelLeakage Level
Fuel LeakageLeakage Leakage
Exhaust gas —Leakage —
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3. Remove intake valve timing control solenoid valve. Refer to
EM-49, "Exploded View".
4. Crank engine, and then make sure that engine oil comes out from intake valve timing control solenoid valve hole (A). End
crank after checking.
WARNING:
Be careful not to touch rotating parts (drive belts, idler pul-
ley, and crankshaft pulley, etc.).
CAUTION:
• Prevent splashing by using a shop cloth so as to prevent the worker from injury from engine oil an d 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.
5. 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, and then clean it. Refer to EM-65, "
Inspection".
• Clean oil groove between oil strainer and intake valve timing control solenoid valve. Refer to LU-6,
"Engine Lubrication System" and LU-6, "Engine Lubrication System Schematic".
6. 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-6, "
Engine Lubrication System" and LU-6, "Engine Lubrica-
tion System Schematic".
7. After inspection, installation is in the reverse order of removal.
1: Plug
:Engine front
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EM-70
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OIL SEAL
OIL SEAL
VALVE OIL SEAL
VALVE OIL SEAL : Remo
val and InstallationINFOID:0000000005930957
REMOVAL
1. Remove camshafts. Refer to EM-59, "Exploded View".
2. Remove valve lifters. Refer to EM-59, "
Exploded View".
3. Rotate crankshaft, and set piston whose valve oil seal is to be removed to TDC. This will prevent valve from dropping into cylinder.
CAUTION:
When rotating crankshaft, be careful to avo id scarring front cover with timing chain.
4. Remove valve collet. • Compress valve spring with Tool (A). Remove valve collet witha magnet hand (B).
CAUTION:
Be careful not to damage valve lifter holes.
5. Remove valve spring retainer, valve spring and valve spring seat. Refer to EM-76, "
Disassembly and
Assembly".
6. Remove valve oil seal with Tool (A).
INSTALLATION
1. Apply new engine oil to valve oil seal joint surface and seal lip.
2. Press in valve oil seal to the height “H” shown with Tool (A).
3. Installation of the remaining components is in the reverse order of removal.
FRONT OIL SEAL
Tool number : KV10116200 (J-26336-B)
: KV10115900 (J-26336-20)
: KV10109220 ( — )
PBIC3727E
Tool number : KV10107902 (J-38959) : KV10116100 ( — )
PBIC3728E
Height “H” : 13.2 - 13.8 mm (0.520 - 0.543 in)
Tool number : KV10115600 (J-38958)
PBIC3211J
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