2009 NISSAN LATIO ECU

DRIVE BELTS
EM-137
< SERVICE INFORMATION >
[MR18DE] C
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1. Hold the hexagonal part (A) of drive belt auto-tensioner (1) with
a box wrench securely. Then move the wrench handle in the
direction of arrow (loosening direction of tensioner).
WARNING:
Never place hand in a location where pinching may occur if
the holding tool accidentally comes off.
2. Insert a rod such as short-length screwdriver approximately 6 mm (0.24 in) in diameter into the hole (B) of retaining boss to fix
drive belt auto-tensioner.
3. Install drive belt. CAUTION:
• Confirm drive belt is completely set to pulleys.
• Check for engine oil, working fluid and engine coolant are not adhered to drive belt and each
pulley groove.
4. Release drive belt auto-tensioner, and apply tension to drive belt.
5. Turn crankshaft pulley clockwise several times to equalize tension between each pulley.
6. Confirm tension of drive belt at indicator (notch on fixed side) is within the possible use range. Refer to
EM-136, " Checking Drive Belts " .
Component INFOID:0000000004307127
Removal and Installation of Drive Belt Auto Tensioner INFOID:0000000004307128
REMOVAL 1. Remove drive belt. Refer to EM-136, " Removal and Installation " .
2. Release the fixed drive belt auto-tensioner pulley.
3. Loosen bolt and remove drive belt auto-tensioner. NOTE: PBIC3936E
1. Front cover 2. Drive belt auto–tensioner 3. Idler pulley (models without A/C)
4. Bracket (models without A/C) 5. Shaft (models without A/C) PBIC4698E

EM-140< SERVICE INFORMATION >
[MR18DE]
AIR CLEANER AND AIR DUCT
• Align marks.
• Attach each joint securely.
• Screw clamps firmly.
Changing Air Cleaner Filter INFOID:0000000004307131
REMOVAL
1. Push the tabs (A) of both ends of the air cleaner cover (1) into the inside (B).
2. Pull up the air cleaner cover (1) and remove it (C).
3. Remove the air cleaner filter (1) and holder (2) assembly from the air cleaner case.
4. Remove the air cleaner filter (1) from the holder (2).
INSPECTION AFTER REMOVAL
It is necessary to replace the air cleaner filter at the recommended intervals, more often under dusty driving
conditions. Refer to MA-9, " Introduction of Periodic Maintenance " .
INSTALLATION
Installation is in the reverse order of removal.
• Install the air cleaner cover (1) in the direction shown.
• Air cleaner filter (2)
• Holder (3) PBIC3557J
PBIC3558J
PBIC3559J

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2. Install fuel injector (4) to fuel tube (1) with the following proce-
dure:
a. Insert clip (2) into clip groove (F) on fuel injector. • Insert clip so that protrusion (G) of fuel injector matches cut-
out (D) of clip.
CAUTION:
• Never reuse clip. Replace it with a new one.
• Be careful to keep clip from interfering with O-ring. If
interference occurs, replace O-ring.
b. Insert fuel injector into fuel tube with clip attached. • Insert it while matching it to the axial center.
• Insert fuel injector so that protrusion (B) of fuel tube matches
cut-out (C) of clip.
• Make sure that fuel tube flange (A) is securely fixed in flange
fixing groove (E) on clip.
c. Make sure that installation is complete by making sure that fuel injector does not rotate or come off.
3. Set fuel tube and fuel injector assembly at its position for installation on cylinder head. CAUTION:
Be careful not to let tip of injector nozzle interfere with other parts.
4. Tighten bolts in numerical order as shown.
5. Installation of the remaining components is in the reverse order of removal.
INSPECTION AFTER INSTALLATION
Check on Fuel Leakage 1. Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, make sure there are no fuel leaks at connection points.
NOTE:
Use mirrors for checking at points out of clear sight.
2. Start the engine. With engine speed increased, make su re again that there are no fuel leaks at connection
points.
CAUTION:
Never touch the engine immediately after it is stopped, as the engine becomes extremely hot.
3 : O–ring (black)
5 : O–ring (green)

EM-166< 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 camshaft slightly 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 PBIC3539J
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) PBIC3172J

TIMING CHAIN
EM-167
< SERVICE INFORMATION >
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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
PBIC3165J
A : Dust seal lip
B : Oil seal lip
: Engine front
: Engine rear PBIC3485J

TIMING CHAIN
EM-169
< SERVICE INFORMATION >
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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 PBIC3164J
Tool Number : KV10109300 ( — )
Step 1 : 29.4 N·m (3.0 kg-m, 22 ft-lb)
Step 2 : 60 ° clockwise PBIC3961E
PBIC3963E

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• Rocker cover; Refer to
EM-153 .
• Fuel tube and fuel injector assembly; Refer to EM-156 .
• Front cover, timing chain and related parts; Refer to EM-160 .
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 chain
is 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
PBIC3454J

EM-176< SERVICE INFORMATION >
[MR18DE]
CAMSHAFT
5. Install camshaft bracket bolts in three stage in numerical order as shown.
• There are two types of bolts. Locate the bolts as shown.
6. Tighten all bolts in numerical order in three steps.
7. Install the camshaft sprocket (INT) (2) to the camshaft (INT). NOTE:
Align the matching mark (A) applied during removal. Securely
align the knock pin and the pin hole, and then install them.
8. Tighten camshaft (INT) sprocket bolt. NOTE:
Secure the hexagonal part of camshaft (INT) using wrench to tighten bolt.
9. Turn 67 degrees clockwise (angle tightening) using Tool (B).
CAUTION:
Never judge by visual inspect ion without an angle wrench.
: Engine front
M6 bolts [thread length: 57.5 mm (2.264 in)] : 13, 14 and 15
M6 bolts [thread length: 35.00 mm (1.378 in)] : Except the above
Step 1 : 1.96 N·m (0.20 kg-m, 17 in-lb)
Step 2 : 5.88 N·m (0.60 kg-m, 52 in-lb)
Step 3 : 9.5 N·m (0.97 kg-m, 84 in-lb)
1 : Camshaft bracket : Engine front PBIC3176J
PBIC3992J
Camshaft sprocket bolt (INT) : 35.0 N·m (3.6 kg-m, 26 ft-lb)
1 : Camshaft sprocket (INT)
A : Camshaft (INT) hexagonal part
Tool number : KV10112100 (BT-8653-A) PBIC3455J