NISSAN LATIO 2010 Service Repair Manual

EM-152
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FUEL INJECTOR AND FUEL TUBE
FUEL INJECTOR AND FUEL TUBE
ComponentINFOID:0000000005398127
Removal and InstallationINFOID:0000000005398128
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.
CAUTION:
• Apply new engine oil to parts before installing the parts, as shown above.
• Do not remove or disassemble parts unless instructed as shown.
REMOVAL
1. Release the fuel pressure. Refer to EC-582, "Fuel Pressure Check".
2. Disconnect the battery negative terminal. Refer to SC-7, "
Removal and Installation".
3. Remove quick connector cap (1) from quick connector connec- tion.
1. Bracket 2. Bracket 3. Fuel tube
4. Clip 5. Fuel injector6. O-ring (green)
7. O-ring (black)
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4. Disconnect fuel feed hose from hose clamp.
NOTE:
There is no fuel return path.
5. With the sleeve side of quick connector release facing quick connector, install quick connector release onto fuel tube.
6. Insert quick connector release into quick connector until sleeve contacts and goes no further. Hold quick connector release on
that position.
CAUTION:
Inserting quick connector re lease hard will not disconnect
quick connector. Hold qui ck connector release where it
contacts and goes no further.
7. Draw and pull out quick connector straight from fuel tube. CAUTION:
• Pull quick connector holding (A) position.
• Do not pull with lateral force applied. O-ring inside quick connector may be damaged.
• Prepare container and cloth be forehand as fuel will leak out.
• Avoid fire and sparks.
• Keep parts away from heat source. Especially, be careful when welding is performed around
them.
• Do not expose parts to battery electrolyte or other acids.
• Do not bend or twist connection between quick co nnector and fuel feed hose during installation/
removal.
• To keep clean the connecting portion and to avoid dam-
age and foreign materials, cover them completely with
plastic bags or something similar.
8. Remove intake manifold. Refer to EM-137
.
1 : Quick connector cap
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EM-154
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FUEL INJECTOR AND FUEL TUBE
9. Remove fuel tube bolts.
• Loosen bolts in reverse order as shown.
10. Remove the fuel tube and fuel injector assembly. CAUTION:
• When removing, be careful to avoid any interference with fuel injector.
• Use a shop cloth to absorb any fuel leaks from fuel tube.
11. Remove fuel injector from the f uel tube with the following procedure:
a. Open and remove the clip.
b. Remove fuel injector from the fuel tube by pulling straight. CAUTION:
• Be careful about spilling fu el remaining in fuel tube.
• Be careful not to damage the fuel injector nozzle during removal.
• Never bump or drop fuel injector.
• Never disassemble fuel injector.
INSTALLATION
1. Install new O-rings to the fuel injector.
CAUTION:
• The upper and lower O-rings are different. Be careful not to confuse them.
• Handle O-ring with bare hands. Never wear gloves.
• Lubricate O-ring with new engine oil.
• Never clean O-ring with solvent.
• Make sure that the O-ring and its mati ng part are free of foreign material.
• Be careful not to scratch O-ring with tool or fingernails when installing.
• Do not twist or stretch O-ring. If O-ring was stretched while installing, never insert it into fuel
tube immediately.
• Insert O-ring straight into fuel tube. Never angle or twist it.
: Engine front
PBIC3154J
Fuel tube side : Black
Nozzle side : Green
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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. Ifinterference 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 sure 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)
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: Engine front
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EM-156
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TIMING CHAIN
TIMING CHAIN
ComponentINFOID:0000000005398129
1. Timing chain slack guide
2. Timing chain tensioner3. Camshaft sprocket (EXH)
4. Timing chain 5. Oil filler cap6. Front cover
7. O-ring 8.Intake valve timing control solenoid
valve
9. Crankshaft pulley bolt
10. Crankshaft pulley 11. Front oil seal12. Drive belt auto-tensioner
13. Timing chain tension guide (front cov-
er side)
14. Crankshaft sprocket
15. Oil pump sprocket
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ORemoval and InstallationINFOID:0000000005398130
CAUTION:
The rotating direction indicated in the text indicates all directions seen from the engine front.
REMOVAL
1. Disconnect the battery negative terminal. Refer to
SC-7, "Removal and Installation".
2. Drain engine oil. Refer to LU-18, "
Changing Engine Oil".
CAUTION:
Perform this step when engine is cold.
3. Partially drain engine coolant from the radiator. Refer to CO-36, "
Changing Engine Coolant".
4. Remove front RH wheel. Refer to WT-7, "
Adjustment".
5. Remove front fender protector (RH). Refer to EI-24, "
Removal and Installation".
6. Remove the following parts. • Rocker cover: Refer to EM-149, "
Component".
• Drive belt: Refer to EM-132, "
Removal and Installation".
• Water pump pulley: Refer to CO-44, "
Component".
• Ground cable (between engine bracket (RH) and radiator core support)
7. Support the bottom surface of engine using a transmission jack, and then remove the engine bracket and insulator (RH). Refer to EM-191, "
Component".
8. Set No. 1 cylinder at TDC on its compression stroke with the following procedure:
a. Rotate crankshaft pulley (1) clockwise and align TDC mark (no paint) (B) to timing indicator (A) on front cover.
b. At the same time, make sure that the cam noses of the No.1 cyl- inder are located ( ) as shown.
• If not, rotate crankshaft pulley one revolution (360 degrees)and align as shown.
16. Oil pump drive chain 17. Camshaft sprocket (INT)18. Timing chain tension guide
19. O-ring 20. Chain tensioner (for oil pump)
A. Refer to EM-157
B. Refer to EM-166
C : White paint mark (Not use for service)
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1 : Camshaft (INT)
2 : Camshaft (EXH)
: Engine front
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EM-158
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TIMING CHAIN
9. Hold crankshaft pulley (1) using suitable tool (A) loosen crank-
shaft pulley bolt, and locate bolt seating surface at 10 mm (0.39
in) from its original position.
CAUTION:
Never remove the crankshaft pulley bolt as it will be used as
a supporting point fo r the pulley puller.
10. Attach Tool (A) in the M6 thread hole on crankshaft pulley (1), and remove crankshaft pulley.
11. Remove oil pan (lower). Refer to EM-143, "
Component".
NOTE:
When crankshaft sprocket, oil pump sprocket and other related parts are not removed, this step is unnec-
essary.
12. Remove intake valve timing control solenoid valve.
13. Remove drive belt auto-tensioner.
14. Loosen bolts in reverse order as shown. Tool number
: KV10109300 ( — )
PBIC3961E
Tool number : KV11103000 ( — )
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TIMING CHAINEM-159
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15. Cut liquid gasket by prying the position ( ) shown, and then
remove the front cover.
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.
16. Remove front oil seal from front cover. • Lift up front oil seal using a suitable tool.
CAUTION:
Be careful not to damage front cover.
17. Push in timing chain tensioner plunger.
18. Insert a stopper pin (A) into the body hole to retain the plunger in collapsed position.
NOTE:
Use approximately 1.5 mm (0.059 in) diameter hard metal pin as
a stopper pin.
19. Remove timing chain tensioner (1).
20. Remove timing chain slack guide (2), timing chain tension guide (3) and timing chain (1).
CAUTION:
Never rotate each crankshaft and camshaft individually
while timing chain is removed. It causes interference
between valve and piston.
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EM-160
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TIMING CHAIN
21. Press stopper tab (A) in the direction shown to push the timing
chain slack guide (B) toward timing chain tensioner (for oil
pump) (1).
• The slack guide (B) is released by pressing the stopper tab(A). As a result, the slack guide (B) can be moved.
22. Insert stopper pin (D) into tensioner body hole (C) to secure tim- ing chain slack guide (B).
NOTE:
Use a hard metal pin with a diameter of approximately 1.2 mm
(0.047 in) as a stopper pin.
23. Remove timing chain tensioner (for oil pump), if necessary.
24. Hold the WAF part of oil pump shaft (A), and t hen loosen the oil pump sprocket bolt and remove them.
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.
25. Remove crankshaft sprocket, oil pump sprocket and oil pump drive chain as a set, if necessary.
26. Remove timing chain tension guide (front co ver side) from front cover, if necessary.
INSPECTION AFTER REMOVAL
Timing Chain
PBIC5314E
1 : Oil pan (upper)
2 : Oil pump
: Engine front
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• Check timing chain and oil pump drive chain for cracks (A) and any
excessive wear (B) at the roller links of timing chain.
• Replace timing chain and/or oil pum p drive chain, if necessary.
INSTALLATION
NOTE:
The figure shows the relationship between the matching mark on
each timing chain and that on the corresponding sprocket, with the
components installed.
1. Make sure that crankshaft key points are aligned.
NOTE:
*: There are two outer grooves in camshaft spro cket (INT). The wider one is a matching mark.
2. If the timing chain tension guide (front cover si de) is removed, install it to the front cover.
CAUTION:
Check the joint condition by sound or feeling.
3. Install crankshaft sprocket (2), oil pump sprocket (3) and oil pump drive chain (1).
• Install it by aligning matching marks on each sprocket and oil
pump drive chain.
• If these matching marks are not aligned, rotate the oil pump
shaft slightly to correct the position.
CAUTION:
Check matching mark position of each sprocket after
installing the oil pump drive chain.
PBIC3169J
1 : Timing chain
2 : Camshaft sprocket (EXH)
3 : Timing chain slack guide
4 : Timing chain tensioner
5 : Oil pump sprocket
6 : Oil pump drive chain
7 : Chain tensioner (for oil pump)
8 : Crankshaft sprocket
9 : Timing chain tension guide
10 : Camshaft sprocket (INT)
A : Matching mark (dark blue link)
B : Matching mark (stamping)
C : Crankshaft key position (straight up)
D : Matching mark (orange link)
E : Matching mark (orange link)
F : Matching mark (outer groove*)
A : Matching mark (stamping)
B : Matching mark (orange link)
C : Matching mark (dark blue link)
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