NISSAN LATIO 2010 Service Repair Manual

EM-162
< SERVICE INFORMATION >[MR18DE]
TIMING CHAIN
4. Hold the WAF part of oil pump
shaft (A), and then tighten the oil
pump sprocket bolt.
CAUTION:
• Secure the oil pump shaft with the WAF part (A).
• Never loosen the oil pump sp rocket bolt by tightening the
oil pump drive chain.
5. Install chain tensioner (for oil pump) (1). 1. Fix the plunger at the most compressed position using a
stopper pin (A), and then install it.
2. Securely pull out ( ) the stopper pin after installing the chain tensioner (for oil pump).
3. Check matching mark position of oil pump drive chain and each sprocket again.
6. Align the matching marks of each sprocket with the matching marks of timing chain.
NOTE:
*: There are 2 outer grooves in camshaft sprocket (INT). The
wider one is a matching mark.
• If these matching marks are not aligned, rotate the camshaftslightly by holding the hexagonal portion to correct the posi-
tion.
CAUTION:
Check matching mark position of each sprocket and timing
chain again after instal ling the timing chain.
1 : Oil pan (upper)
2: Oil pump
: Engine front
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AWBIA0139ZZ
1 : Camshaft sprocket (EXH)
2 : Camshaft sprocket (INT)
3 : Timing chain
A : Matching mark (dark blue link)
B : Matching mark (stamping)
C : Matching mark (outer groove*)
D : Matching mark (orange link)
E : Matching mark (stamping)
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TIMING CHAINEM-163
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7. Install the timing chain tension guide (3) and the timing chain
slack guide (2).
8. Install timing chain tensioner (1). 1. Fix the plunger at the most compressed position using a
stopper pin (A), and then install it.
2. Securely pull out the stopper pin after installing the timing chain tensioner.
9. Check matching mark position of timing chain and each sprocket again.
10. Apply new engine oil to new front oil seal joint surface.
11. Install front oil seal so that each seal lip is oriented as shown.
1 : Timing chain
AWBIA0138ZZ
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A : Dust seal lip
B: Oil seal lip : Engine front
: Engine rear
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EM-164
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TIMING CHAIN
• Install front oil seal (2) using a suitable tool with outer diameter
57 mm (2.24 in) and inner diameter 45 mm (1.77 in) (A) to the
dimension shown.
CAUTION:
• Be careful not to damage front cover and crankshaft.
• Press-fit oil seal straight to avoid causing burrs or tilting.
• Never touch grease applied onto oil seal lip.
12. Install new O-ring to cylinder block. CAUTION:
Be sure O-rings are aligned properly.
13. Apply the sealant without breaks to the specified location using Tool.
Use Genuine Silicone RTV Sealant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
14. Make sure that matching marks of timing chain and each sprocket are still aligned. CAUTION:
• Make sure O-ring on cylinder block is correctly installed.
• Be careful not to damage front oil seal by interference with front end of crankshaft.
1 : Front cover
: Engine front
Within 0.3 mm (0.012 in) toward engine front
Within 0.5 mm (0.020 in) toward engine rear
PBIC3729E
Tool number WS39930000 ( – )
A : Liquid gasket application area
B : Liquid gasket
: Engine outside
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15. Install front cover, and tighten bolts in two stages to specified
torque in numerical order as shown.
CAUTION:
• Attaching should be done wi thin 5 minutes after liquid
gasket application.
• Be sure to wipe off any excessive liquid gasket leaking.
NOTE:
Installation position of bolts is as shown.
16. Install crankshaft pulley using the following procedure.
a. Install crankshaft pulley. CAUTION:
• Never damage front oil seal lip section.
• If needed use a plastic hammer, tap on its cente r portion (not circumference) to seat crankshaft
pulley.
b. Apply new engine oil to thread and seat surfaces of crankshaft pulley bolt.
c. Secure crankshaft pulley (1) using Tool (A).
d. Tighten crankshaft pulley bolt in two steps.
• For angle tightening, put a paint mark (B) on crankshaft pulley(2), matching with any one of six easy to recognize angle
marks (A) on crankshaft pulley bolt flange (1).
• Turn 60 degrees clockwise (angle tightening).
• Check the tightening angle with movement of one angle mark.
e. Make sure that crankshaft rotates clockwise smoothly.
17. Installation of the remaining components is in the reverse order of removal.
M6 bolts : No. 1
M10 bolts : No. 6, 7, 10, 11, 14
M12 bolts : No. 2, 4, 8, 12
M8 bolts : Except the above
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Tool Number : KV10109300 ( — )
Step 1 : 29.4 N·m (3.0 kg-m, 22 ft-lb)
Step 2 : 60° clockwise
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EM-166
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CAMSHAFT
CAMSHAFT
ComponentINFOID:0000000005398131
Removal and InstallationINFOID:0000000005398132
REMOVAL
WARNING:
• Put a “CAUTION: FLAMMABLE”
sign in the workshop.
• Be sure to work in a well ventilate d area and furnish workshop with a CO
2 fire extinguisher.
• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
1. Release the fuel pressure. Refer to EC-582, "
Fuel Pressure Check".
2. Disconnect negative battery terminal. Refer to SC-7, "
Removal and Installation".
3. Remove front RH wheel. Refer to WT-7, "
Adjustment".
4. Remove front fender protector (RH). Refer to EI-24
.
5. Drain engine coolant. Refer to CO-36
.
NOTE:
Perform this step when engine is cold.
6. Remove the following parts. • Intake manifold. Refer to EM-137
.
• Rocker cover. Refer to EM-149
.
1. O-ring 2. Camshaft position sensor (PHASE) 3. Camshaft bracket
4. Camshaft sprocket (EXH) 5. Camshaft sprocket (INT) 6. Camshaft (EXH)
7. Camshaft (INT) 8. Valve lifter (EXH) 9. Valve lifter (INT)
10. Cylinder head
A. Refer to EM-166
.
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CAMSHAFTEM-167
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• Fuel tube and fuel injector assembly. Refer to
EM-152.
• Front cover, timing chain and related parts. Refer to EM-156
.
• Generator. Refer to SC-25, "
Removal and Installation".
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 wher e it is exposed to magnetism.
8. Put matching marks (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 chainis 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 pre-
vious types when shipped, so it should not be forced off
the position not specified.
12. Remove camshafts.
: Engine front
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: Engine front
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: Engine front
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EM-168
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
13. Remove valve lifters, if necessary.
NOTE:
Identify installed positions, and st ore them without mixing them up.
INSPECTION AFTER REMOVAL
Camshaft Runout
1. Put V-block on a precise flat table, and support No. 2 and 5 jour-
nal of camshaft.
CAUTION:
Never support No. 1 journal (on the side of camshaft
sprocket) because it has a differe nt diameter from the other
four locations.
2. Set dial indicator (A) vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on 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 it exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL OUTER DIAMETER
Measure the outer diameter of ca mshaft journal with a micrometer
(A).
CAMSHAFT BRACKET INNER DIAMETER
• Tighten camshaft bracket bolts with specified torque. Standard : Less than 0.02 mm (0.0008 in).
Limit : 0.05 mm (0.0020 in)
PBIC3177J
Standard:
Intake : 44.605 - 44.795 mm (1.7560 - 1.7635 in)
Exhaust : 43.175 - 43.365 mm (1.6997 - 1.7072 in)
Limit: Intake : 44.405 mm (1.7482 in)
Exhaust : 42.975 mm (1.6919 in)
PBIC3178J
Standard:
No. 1 : 27.935 - 27.955 mm (1.0998 - 1.1006 in)
No. 2, 3, 4, 5 : 24.950 - 24.970 mm (0.9823 - 0.9831 in)
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CAMSHAFTEM-169
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• Measure the inner diameter 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 camshaft or cylinder head, or both. NOTE:
Camshaft bracket cannot be replaced as a single part , because it is machined together with cylinder head.
Replace whole cylinder head assembly.
Camshaft End Play
1. Install camshaft in cylinder head.
2. Install dial indicator in thrust direction on front end of camshaft. Read the end play of dial indicator (A) when camshaft is moved
forward/backward (in direction to axis).
• Measure the following parts if out of the standard.
- Dimension (A) for groove of cylinder head No. 1 journal
- Dimension (B) for camshaft flange
• Apply the standards above, and then replace camshaft and/or
cylinder head, if necessary.
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.
B : Measuring direction of inner diameter
Standard:
No. 1 : 28.000 - 28.021 mm (1.1024 - 1.1032 in)
No. 2, 3, 4, 5 : 25.000 - 25.021 mm (0.9843 - 0.9851 in)
PBIC3180J
Standard: No. 1 : 0.045 - 0.086 mm (0.0018 - 0.0034 in)
No. 2, 3, 4, 5 : 0.030 - 0.071 mm (0.0012 - 0.0028 in)
Limit:
: 0.15 mm (0.0059 in)
Standard : 0.075 - 0.153 mm (0.0030 - 0.0060 in)
Limit : 0.24 mm (0.0094 in)
PBIC3181J
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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EM-170
< SERVICE INFORMATION >[MR18DE]
CAMSHAFT
2. Measure the camshaft sprocket runout with a dial indicator (A).
(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-174,
"Valve Clearance".
Valve Lifter Clearance
VALVE LIFTER OUTER DIAMETER
• Measure the outer diameter of valve lifter with a micrometer (A).
VALVE LIFTER HOLE DIAMETER
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.
INSTALLATION
1. Install valve lifters. • Install them in the original positions.
2. Install camshafts. Limit : 0.15 mm (0.0059 in)
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KBIA0182E
Standard:
Intake : 33.977 - 33.987 mm (1.3377 - 1.3381 in)
Exhaust : 29.977 - 29.987 mm (1.1802 - 1.1806 in)
PBIC3185J
Standard:Intake : 34.000 - 34.021 mm (1.3386 - 1.3394 in)
Exhaust : 30.000 - 30.021 mm (1.1811 - 1.1819 in)
Standard: 0.013 - 0.044 mm (0.0005 - 0.0017 in)
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CAMSHAFTEM-171
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• Clean camshaft journal to remove any foreign material.
• Distinguish between the intake and the exhaust by looking at
the different shapes of the front and rear ends of the camshaft
or using the identification colors (A) and (B).
• Install camshafts so that camshaft dowel pins (A) on the front side are positioned as shown.
NOTE:
Though camshaft does not stop at t he positions as shown, for
the placement of cam nose, it is generally accepted camshaft
is placed for the same direction as shown.
3. Remove foreign material completely from camshaft bracket backside and from cylinder head installation face.
4. Apply liquid gasket (A) to camshaft bracket as shown. Use Genuine Silicone RTV Seal ant or equivalent. Refer to
GI-42, "
Recommended Chemical Product and Sealant".
1 : Camshaft (EXH)
2 : Camshaft (INT)
Identification color AB
Camshaft (EXH) —Yellow
Camshaft (INT) Yellow—
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1 : Camshaft (EXH)
2 : Camshaft (INT)
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Tool number WS39930000 ( – )
B : Plug hole inner wall
: Engine front
: Engine outside
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