NISSAN TIIDA 2007 Service Repair Manual

EM-24
< ON-VEHICLE MAINTENANCE >[HR16DE]
COMPRESSION PRESSURE
COMPRESSION PRESSURE
InspectionINFOID:0000000001381392
1. Warm up engine thoroughly. Then, stop it.
2. Release fuel pressure. Refer to EC-377, "
Inspection" (EURO-OBD), EC-681, "Inspection" (WITHOUT
EURO-OBD).
3. Remove ignition coil and spark plug from each cylinder. Refer to EM-47, "
Exploded View".
4. Connect an engine tachometer (not required in use of CONSULT-III).
5. Install a compression tester (B) with an adapter (commercial
service tool) (A) onto spark plug hole.
 Use the adapter whose picking up end inserted to spark plug
hole is smaller than 20 mm (0.79 in) in diameter. Otherwise, it
may be caught by cylinder head during removal.
6. With accelerator pedal fully depressed, turn ignition switch to “START” for cranking. When the gauge
pointer stabilizes, read the compression pressure and the engine rpm. Perform these steps to check each
cylinder.
CAUTION:
Always use fully a changed battery to obtain the specified engine speed.
 If the engine speed is out of the specified range, check battery liquid for proper gravity. Check engine
speed again with normal battery gravity.
 If compression pressure is below minimum value, check valve clearances and parts associated with
combustion chamber (Valve, valve seat, piston, piston ring, cylinder bore, cylinder head, cylinder head
gasket). After the checking, measure the compression pressure again.
 If some cylinder has low compression pressure, pour small amount of engine oil into the spark plug hole
of the cylinder to re-check it for compression.
- If the added engine oil improves the compression, piston rings may be worn out or damaged. Check pis-
ton rings and replace if necessary.
- If the compression pressure remains at low level despite the addition of engine oil, valves may be mal-
functioning. Check valves for damage. Replace valve or valve seat accordingly.
 If two adjacent cylinders have respectively low compression pressure and their compression remains
low even after the addition of engine oil, cylinder head gasket is leaking. In such a case, replace cylinder
head gasket.
7. After inspection is completed, install removed parts.
8. Start the engine, and confirm that the engine runs smoothly.
9. Perform trouble diagnosis. If DTC appears, erase it. Refer to EC-469, "
Description".
PBIC3730E
SBIA0533E
Compression Pressure: Refer to EM-122, "General Specification".

DRIVE BELT IDLER PULLEY
EM-25
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ON-VEHICLE REPAIR
DRIVE BELT IDLER PULLEY
Exploded ViewINFOID:0000000001381393
Removal and InstallationINFOID:0000000001381394
REMOVAL
1. Remove drive belt. Refer to EM-16, "Removal and Installation".
2. Remove the lock nut, and then remove the plate, idler pulley, and washer.
3. Remove the center shaft together with the spacer with inserting the adjusting bolt.
INSTALLATION
1 : Generator bracket
2 : Center shaft
3 : Spacer
4 : Adjusting bolt
5: Washer
6 : Idler pulley
7: Plate
PBIC3644E

EM-26
< ON-VEHICLE REPAIR >[HR16DE]
DRIVE BELT IDLER PULLEY
1. Insert the center shaft (1) into the slide groove of the spacer (2).
Fully screw in the adjusting bolt (3) in the belt loosening direc-
tion ( ).
 At that time, place the flange (a) of the adjusting bolt and the
seat (b) of the center shaft on the spacer.
2. Place each surface (c, d) of the spacer on the generator bracket.
Install the washer, idler pulley, and plate, and then temporarily
tighten the lock nut.
3. Installation is in the reverse order of removal.: 4.4 N·m (0.45 kg-m, 39 in-lb)
PBIC3885E

AIR CLEANER AND AIR DUCT
EM-27
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AIR CLEANER AND AIR DUCT
Exploded ViewINFOID:0000000001381395
Removal and InstallationINFOID:0000000001381396
REMOVAL
1. Remove the battery. Refer to PG-6, "Removal and Installation".
2. Remove the air duct (inlet).
3. Remove the air cleaner filter from the air cleaner case. Refer to EM-18, "
Removal and Installation".
4. Remove the air duct [between air duct (inlet) and air cleaner case] from the air cleaner case.
5. Remove the PCV hose.
6. Remove the air duct (between air cleaner case and electronic throttle control actuator).
 Add marks as necessary for easier installation.
7. Disconnect harness connector from mass air flow sensor.
8. Remove air cleaner case.
9. Remove the mass air flow sensor from the air cleaner case, if necessary.
CAUTION:
 Handle mass air flow sensor carefully and avoid impacts.
 Never touch sensor part.
INSTALLATION
Installation is in the reverse order of removal.
1. Air cleaner filter 2. Mass air flow sensor 3. O-ring
4. Holder 5. Air cleaner cover 6. Air duct
7. PCV hose 8. Clip 9. Air duct (Inlet)
10. Grommet 11. Air duct 12. Grommet
13. Air cleaner case
A. To electronic throttle control actuator B. To rocker cover
PBIC3645E

EM-28
< ON-VEHICLE REPAIR >[HR16DE]
AIR CLEANER AND AIR DUCT
 Align marks. Attach each joint. Screw clamps firmly.
InspectionINFOID:0000000001381397
INSPECTION AFTER REMOVAL
Inspect air ducts and air cleaner assembly for crack or tear.
 If anything found, replace air ducts and air cleaner assembly as necessary.

INTAKE MANIFOLD
EM-29
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INTAKE MANIFOLD
Exploded ViewINFOID:0000000001381398
Removal and InstallationINFOID:0000000001381399
REMOVAL
1. Remove the air duct (inlet) and air duct (between air cleaner case and electronic throttle control actuator).
Refer to EM-27, "
Exploded View".
2. Remove the reservoir tank. Refer to CO-16, "
Component".
3. Remove the oil level gauge.
CAUTION:
Cover the oil level gauge guide openings to avoid entry of foreign materials.
4. Remove electronic throttle control actuator and position aside.
CAUTION:
 Handle electric throttle control actuator carefully and avoid impacts.
 Never disassemble or adjust electric throttle control actuator.
5. Disconnect the harness connector and EVAP hose from the EVAP canister purge volume control solenoid
valve.
6. Disconnect vacuum hose for brake booster from intake manifold.
PBIC4737E
1. EVAP hose 2. Vacuum tank 3. EVAP hose
4. O-ring 5.EVAP canister purge volume control
solenoid valve6. Electric throttle control actuator
7. Water hose (Northern Europe models) 8. Water hose (Northern Europe models) 9. Gasket
10. Intake manifold support (rear) 11. Intake manifold 12. Intake manifold support (front)
13. Intake manifold support (center) 14. Cylinder head 15. Vacuum hose
16. Gasket
A. To centralized under-floor piping B. To brake booster C. To water outlet

EM-30
< ON-VEHICLE REPAIR >[HR16DE]
INTAKE MANIFOLD
7. Remove intake manifold support front (1) and bolt from rear (2).
 Bracket (2) is not removed. Remove bolt from intake manifold.
8. Remove intake manifold.
 Loosen bolts in the reverse of the order shown.
9. Remove EVAP canister purge volume control solenoid valve from intake manifold, if necessary.
CAUTION:
Handle EVAP canister purge volume control solenoid valve carefully and avoid impacts.
10. Remove intake manifold support (center) from cylinder head, if necessary.
NOTE:
The intake manifold support (center) functions as the guide when the intake manifold is installed.
INSTALLATION
Installation is in the reverse order of removal.
Intake Manifold
1. Install the gasket to the intake manifold.
 Align the protrusion (A) of gasket to the groove of intake mani-
fold.
2. Place the intake manifold into the installation position.
CAUTION:
Make sure that the oil level gauge guide is not disconnected from the fixing clip of water inlet due
to interference with intake manifold.
JPBIA0278ZZ
: Engine front
PBIC3652E
PBIC3651E

INTAKE MANIFOLD
EM-31
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3. Tighten bolts in the numerical order shown.
4. Install intake manifold support (front and rear).
Electronic Throttle Control Actuator
 Tighten bolts of electronic throttle control actuator equally and diagonally in several steps.
 Perform “Throttle Valve Closed Position Learning” after repair when removing harness connector of the elec-
tric throttle control actuator. Refer to EC-27, "
THROTTLE VALVE CLOSED POSITION LEARNING :
Description" (EURO-OBD), EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Description"
(WITHOUT EURO-OBD).
 Perform “Throttle Valve Closed Position Learning” and “Idle Air Volume Learning” after repair when replacing
electric throttle control actuator. Refer to EC-27, "
THROTTLE VALVE CLOSED POSITION LEARNING :
Description" (EURO-OBD), EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Description"
(WITHOUT EURO-OBD), EC-27, "IDLE AIR VOLUME LEARNING : Description" (EURO-OBD), EC-390,
"IDLE AIR VOLUME LEARNING : Description" (WITHOUT EURO-OBD).
: Engine front
PBIC3652E

EM-32
< ON-VEHICLE REPAIR >[HR16DE]
EXHAUST MANIFOLD
EXHAUST MANIFOLD
Exploded ViewINFOID:0000000001381400
Removal and InstallationINFOID:0000000001381401
REMOVAL
1. Remove the cowl. Refer to EXT-20, "Removal and Installation".
2. Remove the engine room cover.
3. Remove exhaust front tube. Refer to EX-5, "
Component".
4. Remove the harness bracket of heated oxygen sensor 1 from the cylinder head.
5. Remove exhaust manifold cover.
6. Remove the heated oxygen sensor 1.
1. Exhaust manifold cover 2. Exhaust manifold cover 3. Harness bracket
4. Heated oxygen sensor 1 5. Exhaust manifold stay 6. Exhaust manifold
7. Gasket 8. Stud bolt 9. Heat insulator
: Engine front
PBIC4750E

EXHAUST MANIFOLD
EM-33
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 Using heated oxygen sensor wrench [SST: KV10117100] (A),
remove heated oxygen sensor 1.
CAUTION:
Handle heated oxygen sensor 1 carefully and avoid
impacts.
NOTE:
The exhaust manifold can be removed and installed without
removing the heated oxygen sensor 1 (Disassembly of harness
connector is necessary).
7. Remove exhaust manifold side mounting bolt of exhaust manifold stay.
8. Remove exhaust manifold.
 Loosen nuts in the reverse of the order shown.
9. Remove gasket.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
10. Remove exhaust manifold cover from back of exhaust manifold.
INSPECTION AFTER REMOVAL
Mounting Surface Distortion
 Use suitable tools (A) and (B) to check distortion of exhaust mani-
fold mounting surface as shown.
 Replace exhaust manifold if outside the limit.
INSTALLATION
Installation is in the reverse order of removal.
Exhaust Manifold
PBIC3654E
: Engine front
PBIC3774E
Limit : 0.3 mm (0.012 in)
PBIC3530J