NISSAN NOTE 2016 Service Repair Manual

EM-60
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CAMSHAFT
CAMSHAFT
Exploded ViewINFOID:0000000012431720
Removal and InstallationINFOID:0000000012431721
CAUTION:
The rotation direction
indicated in the procedure is as viewed from the engine front.
REMOVAL
1. Remove timing chain. Refer to EM-51, "Removal and Installation"
1. Camshaft bracket (No. 2 to 5) 2. Camshaft bracket (No. 1) 3. Camshaft sprocket (EXH)
4. Exhaust valve timing control sole-
noid valve 5. O-ring 6. Camshaft sprocket (INT)
7. Plug (EXH) 8. Washer (EXH) 9. Oil filter (for exhaust valve timing control solenoid valve)
10. Cylinder head 11. Oil filter (for intake valve timing
control solenoid valve) 12. Washer (INT)
13. Plug (INT) 14. O-ring15. Intake valve timing control solenoid
valve
16. Bracket 17. Valve lifter (INT)18. Valve lifter (EXH)
19. Camshaft (INT) 20. Camshaft (EXH)A. Refer to INSTALLATION
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2. Remove camshaft sprocket (EXH) (1).
CAUTION:
• Hold the camshaft hexagonal pa rt (A), and then secure the
camshaft.
• Do not rotate crankshaft and camshaft separately, so as not to contact valve with piston.
NOTE:
The timing chain with the front cover installed is not disengaged
from the crankshaft sprocket and it is not dropped into the front
cover. Therefore, the timing chain tension holding device is not
necessary.
3. 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. Make sure to follow the procedure exactly.
• 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.
• Put the camshaft sprocket (INT) in the most advanced position:
a. Remove camshaft bracket (No. 1) (1). NOTE:
Timing chain is present only for illustration purposes. Timing
chain is to be removed during removal procedure.
• 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 groove
from the front of camshaft thrust (B).
• Proceed all the way through step “e” with the air pressure on.
• Attach the rubber nozzle narrowed to the top of the air gun to prevent air leaks from the oil hole (A). Securely apply the air
pressure to the oil hole.
WARNING:
Eye protection should be worn as needed.
CAUTION:
• There are other oil holes in the side gr ooves. Do not use the incorrect oil holes.
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PBIC3679E
: Engine front
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Air pressure
: 300 kPa (3.1 kg/cm2, 44 psi) or more
: Engine front
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EM-62
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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
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(A/B) : Lock pin recess
(C) : Lock pin engaged
(D) : Most advanced angle
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CAMSHAFTEM-63
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4. Remove the camshaft sprocket (INT):
a. Keeping the camshaft hexagonal part (A) in place using suitable
tool, loosen the bolts for the camshaft sprocket (INT) (2).
CAUTION:
• Do not drop stopper pin.
• Tape (C) the stopper pin (B) so it does not come out.
• Do not subject it to impact by dropping.
• Do not disassemble. [Do not loosen the three bolts (A)].
NOTE:
While removing the camshaft sprocket (INT), if you have taken
out the stopper pin and the lock pin has been rejoined in the
most retarded angle, do the following to restore it.
i. Install the camshaft (INT) and tighten the bolts enough to pre- vent air from leaking out.
CAUTION:
The internal lock pin will ge t damaged, so keep the torque
on the bolts to the minimum required to prevent air from
escaping.
ii. Apply the air pressure, disengage the lock pin, and turn the vane to the most advanced angle position.
iii. Insert the stopper pin.
iv. Remove camshaft sprocket (INT) from the camshaft.
5. Remove camshaft brackets (No. 2 to 5). • Loosen bolts in several steps in the reverse order as shown.
NOTE:
The camshaft bracket (No. 1) has been already removed.
6. Remove camshaft (EXH).
7. Remove camshaft (INT).
8. Remove valve lifter (if necessary). • Identify installation positions, and store lifters without mixing them up.
9. Remove the generator and bracket. Refer to CHG-29, "
Exploded View"
(1) Camshaft (INT)
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(A) : EXH side
(B) : INT side
: Engine front
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EM-64
< REMOVAL AND INSTALLATION >[HR16DE]
CAMSHAFT
10. Remove the intake valve timing control solenoid valve (1) and
the plug (2) securing the oil filter for intake valve timing control
solenoid valve.
11. Remove the exhaust valve timing control solenoid valve.
12. Remove the plug on the exhaust valve timing control solenoid valve.
13. Remove the oil filter for exhaust valve timing control solenoid valve.
14. For component inspection after removal, refer to EM-68,
"Inspection".
INSTALLATION
CAUTION:
Do not reuse O-rings or washers.
1. Install oil filter (1) for intake and exhaust valve timing control
solenoid valves.
CAUTION:
Do not reuse washers.
NOTE:
The intake side is shown as an example.
• The oil filter (1) and washer (2) are assembled to the plug (3),and then install them in to the cylinder head. Refer to EM-60,
"Exploded View".
2. Install intake and exhaust valve timing control solenoid valves. • Insert it straight into the cylinder head.
• Tighten bolts.CAUTION:
Do not reuse O-rings.
3. Install valve lifters. • If they are reused, install them in the original positions.
4. Put a matching mark for positioning the cams haft (INT) and the camshaft sprocket (INT):
NOTE:
This helps prevent the knock pin from engaging with the incorrect 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 camshaft
sprocket installed as shown.
b. Put the matching marks on a line extending from the knock pin hole (B) position of camshaft sprocket (INT) (2) as shown.
• Put the marks on the visible position with it installed to thecamshaft.
5. Put a matching mark for positioning the camshaft (EXH) and the camshaft sprocket (EXH): NOTE:
This helps prevent the knock pin from engaging with the incorrect pin hole after installing the camshaft
(INT) and the camshaft sprocket (EXH).
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CAMSHAFTEM-65
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a. Put the matching marks (A) on a line extending from the knock
pin position of camshaft (EXH) (1) front surface.
• Put the marks on the visible position with the camshaftsprocket installed as shown.
b. Put the matching marks on a line extending from the knock pin hole (B) position of camshaft sprocket (EXH) (2) as shown.
• Put the marks on the visible position with it installed to the
camshaft.
6. Install camshaft.
• Note that the camshafts (INT and EXH) have different shapesat the rear.
• 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 as shown.
7. Install camshaft brackets (2 to 5) and (A to D).
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(1) : Camshaft (EXH)
(2) : Camshaft (INT)
(A) : Identification mark
Identification Color M1 (A)
Camshaft (EXH) Yellow - Green x 2
Camshaft (INT) White
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(1) : Camshaft (EXH)
(2) : Camshaft (INT) : Upper side
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(A) : EXH side (2 to 5)
(B) : INT side (A to D): Engine front
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EM-66
< REMOVAL AND INSTALLATION >[HR16DE]
CAMSHAFT
8. 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.
9. Install the camshaft sprocket (INT /EXH) to the camshaft (INT/EXH):
a. Refer to the matching mark (A) added in step 4. Securely align the knock pin and the pin hole, and then install them.
NOTE:
The intake side is shown as an example.
10. Tighten the camshaft sprocket bolt (INT/EXH). CAUTION:
Hold the camshaft hexagonal part (A), using a suitable tool
to secure the camshaft.
11. Align the matching mark (peripheral groove) (A/C) and the pink link (B) on the timing chain.
• If the positions of knock pin and pin groove are not aligned,move the camshaft (EXH) slightly to correct these positions.
(A) : EXH side
(B) : INT side
: Engine front
Camshaft bracket bolts : 1.96 N·m (0.20 kg-m, 17 in-lb)
Camshaft bracket bolts : 1.96 N·m (0.20 kg-m, 17 in-lb)
Camshaft bracket bolts : 5.88 N·m (0.60 kg-m, 52 in-lb)
Camshaft bracket bolts : 10.4 N·m (1.1 kg-m, 8 ft-lb)PBIC3686E
PBIC3700E
(1) : Camshaft sprocket (INT)
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(1) : Timing chain
(2) : Camshaft sprocket (EXH)
(3) : Camshaft sprocket (INT)
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CAMSHAFTEM-67
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12. Pull out the stopper pin (A), and then apply the tension to the
timing chain by rotating the crankshaft pulley clockwise slightly.
13. Pull out the stopper pin of chain tensioner.
14. Install front cover.
15. Return the camshaft sprocket (INT) in the most retarded position:
a. Remove the stopper pin (A) from the camshaft sprocket (INT).
b. Turn the crankshaft pulley (1) slowly clockwise (A) and return the 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 check the lock pin has joined by seeing if
the vane (camshaft) and the sprocket move together.
16. Install the camshaft position sensor (PHASE) to the rear end of cylinder head. • Tighten bolts with it completely inserted.
17. Check and adjust valve clearance. Refer to EM-10, "
Inspection and Adjustment".
18. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
(1) : Plunger
(2) : Chain tensioner
(B) : Lever
(C) : Lever hole
(D) : Front cover has been removed for clarity.
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(B) : Tape
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(B) : Stopper pin hole
(C) : Most advanced angle
(D) : Lock pin engaged
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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
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CAMSHAFTEM-69
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O4. If it exceeds the limit, replace camshaft.
Camshaft Cam Height
1. Measure the camshaft cam height using suitable tool (A).
2. If wear exceeds the limit, replace camshaft.
Camshaft Journa
l Oil Clearance
CAMSHAFT JOURNAL DIAMETER
Measure the outer diameter of ca mshaft journal using suitable tool
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts to the specified torque. Refer to "INSTALLATION" for the tightening proce- dure.
• Measure inner diameter (b) of camshaft bracket using suitable tool (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
Standard and Limit
: Refer to EM-117, "
Camshaft".
Standard and Limit Intake : Refer to EM-117, "
Camshaft".
Exhaust
Cam wear limit: : Refer to EM-117, "
Camshaft".
PBIC3178J
Standard: : Refer to EM-117, "Camshaft".
PBIC3179J
Standard : Refer to EM-117, "Camshaft".
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Standard and Limit : Refer to EM-117, "Camshaft".
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