pulley INFINITI M35 2007 Factory User Guide

WATER PUMP
CO-53
[VK45DE]
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Revision: 2007 April2007 M35/M45
WAT E R P U MPPFP:21020
ComponentsNBS004RP

Refer to GI-11, "Components" for symbols in the figure.
Removal and InstallationNBS004RQ
CAUTION:

When removing water pump, be careful not to get engine coolant on drive belts.

Water pump can not be disassembled and should be replaced as a unit.

After installing water pump, connect hose and clamp securely, then check for leaks using radiator
cap tester (commercial service tool) and radiator cap tester adapter (commercial service tool).
REMOVAL
1. Remove following parts:

Front engine undercover (power tool)

Engine cover: Refer to EM-179, "INTAKE MANIFOLD" .

Engine room cover (RH and LH): Refer to EM-173, "ENGINE ROOM COVER" .

Air duct (inlet): Refer to EM-177, "AIR CLEANER AND AIR DUCT" .

Alternator, water pump and A/C compressor belt: Refer to EM-174, "DRIVE BELTS" .
2. Drain engine coolant from drain plugs on radiator and both side of cylinder block. Refer to CO-40, "
Chang-
ing Engine Coolant" and EM-253, "DISASSEMBLY" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove water pump pulley.
4. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready under vehicle.
CAUTION:

Handle the water pump vane so that it does not contact any other parts.

Do not disassemble water pump.
1. Water pump 2. Water pump pulley 3. Gasket
PBIC3396E

MA-14
ENGINE MAINTENANCE (VQ35DE ENGINE)
Revision: 2007 April2007 M35/M45
ENGINE MAINTENANCE (VQ35DE ENGINE)PFP:10001
Checking Drive BeltsNLS0009Y
WARNING:
Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary, replace.
2. Inspect drive belt deflection or tension at a point on belt midway
between pulleys.

Inspection should be done only when engine is cold, or over
30 minutes after engine is stopped.

Measure the belt tension with belt tension gauge (Commercial
service tool: BT3373-F or equivalent) at points marked
shown in the figure.

When measuring the deflection, apply 98 N (10 kg, 22 lb) at
the marked point.

Adjust if the belt deflection exceeds the limit or if the belt ten-
sion is not within specifications.
CAUTION:

When checking the belt deflection or the tension immediately after installation, first adjust it to
the specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified
value to avoid variation in deflection between pulleys.

Tighten idler pulley lock nut by hand and measure the deflection or the tension without loose-
ness.
Belt Deflection and Tension
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.
Tension AdjustmentNLS0009Z
1 : Power steering oil pump
2 : Alternator
3: Idler pulley 2
4 : Crankshaft pulley
5: Idler pulley 3
6 : A/C compressor
7: Idler pulley 1
A : With idler pulley 1
B : Without idler pulley 1
PBIC5329E
ItemsDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump beltWith idler pulley 1 7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)
294 (30, 66)730 - 818
(74.5 - 83.4,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208) Without idler pul-
ley 112 (0.47)7 - 8
(0.28 - 0.31)6 - 7
(0.24 - 0.28)
A/C compressor belt 12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31 - 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
(48 - 57,
106 - 126)
Applied pushing force 98 N (10 kg, 22 lb) —
PortionBelt tightening method for adjustment
Alternator and power steering oil pump belt Adjusting bolt on idler pulley
A/C compressor belt Adjusting bolt on idler pulley

ENGINE MAINTENANCE (VQ35DE ENGINE)
MA-15
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Revision: 2007 April2007 M35/M45
CAUTION:

When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley grooves.

When deflection or tension of belt being used exceeds “Limit”, adjust it to value for “After adjust-
ment”.

When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.

When installing belt, make sure that it is correctly engaged with pulley grooves.

Keep engine oil, working fluid and engine coolant away from belt and pulley grooves.

Do not twist or bend belt excessively.
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) and adjust tension by turning
adjusting bolt (B).

For the specified belt tension, refer to MA-14, "Checking Drive
Belts" .
3. Tighten nut (A).
A/C COMPRESSOR BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (C) and adjust tension by turning adjusting bolt (D).

For the specified belt tension, refer to MA-14, "Checking Drive Belts" .
3. Tighten nut (C).
Changing Engine CoolantNLS0007J
WARNING:

To avoid being scalded, do not change engine coolant when the engine is hot.

Wrap a thick cloth around radiator cap and carefully remove radiator cap. First, turn radiator cap a
quarter of a turn to release built-up pressure. Then turn radiator cap all the way.

Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove engine room cover (RH and LH). Refer to EM-15, "ENGINE ROOM COVER" .
2. Remove air duct (inlet). Refer to EM-19, "
AIR CLEANER AND AIR DUCT" .
3. Open radiator drain plug at the bottom of radiator, and then remove radiator cap.
1 : Alternator and power steering oil pump belt
2 : Power steering oil pump
3 : Alternator
4 : Idler pulley 2
5 : Crankshaft pulley
6 : Idler pulley 3
7 : A/C compressor
8 : A/C compressor belt
9 : Idler pulley 1
E : With idler pulley 1
F : Without idler pulley 2
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
PBIC5330E
: 34.8 N·m (3.5 kg-m, 26 ft-lb)

PS-30
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000DE
CHECKING RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the hydraulic pressure gauge [SST] between oil pump
discharge connector and high-pressure hose. Bleed air from the
hydraulic circuit while opening valve fully. Refer to PS-8, "
Air
Bleeding Hydraulic System" .
2. Start engine. Run engine until oil temperature reaches 50 to
80°C (122 to 176°F).
CAUTION:

Leave the valve of the hydraulic pressure gauge [SST]
fully open while starting and running engine. If engine is
started with the valve closed, the hydraulic pressure in
oil pump goes up to the relief pressure along with
unusual increase of oil temperature.

Be sure to keep hose clear of belts and other parts when
engine is started.
3. Fully close the hydraulic pressure gauge [SST] valve with
engine at idle and measure the relief oil pressure.
CAUTION:
Never keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Repair oil pump if the
relief oil pressure is outside the standard. Refer to PS-31, "
Dis-
assembly and Assembly (Models with VK45DE)" , PS-35, "Disassembly and Assembly (Models with
VQ35DE)" .
5. After inspection, disconnect the hydraulic pressure gauge [SST] from hydraulic circuit, then add fluid and
bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and InstallationNGS000DF
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove undercover from vehicle with a power tool.
3. Loosen drive belt. Refer to EM-16, "
DRIVE BELTS" (VQ35DE), EM-174, "DRIVE BELTS" (VK45DE).
4. Remove drive belt from oil pump pulley.
5. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-39,
"HYDRAULIC LINE" .
6. Remove power steering oil pump mounting bolts, and then remove power steering oil pump. Refer to PS-
39, "Removal and Installation" .
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-39, "HYDRAULIC LINE" .

Perform the following procedure after installing.
–Adjust belt tension (VQ35DE). Refer to EM-16, "Tension Adjustment" .
–About the installation of VK45DE drive belt, refer to EM-174, "Tension Adjustment" .
–Bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" . Relief oil pressure:
8,520 - 9,320 kpa (86.9 - 95.1 kg/cm
2 , 1,235 - 1,351 psi)
SGIA0915E

POWER STEERING OIL PUMP
PS-31
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PS
Revision: 2007 April2007 M35/M45
Disassembly and Assembly (Models with VK45DE)NGS000DG
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.

If oil leakage is found on oil pump.

Oil pump pulley is damaged or deformed.

Performance of oil pump is low.
1. Pulley 2. Snap ring 3. Drive shaft
4. Joint 5. O-ring 6. Connector bolt
7. Flow control valve 8. Spring 9. Oil seal
10. Suction pipe 11. O-ring 12. Body assembly
13. O-ring 14. Side plate 15. Vane
16. Rotor 17. Cam ring 18. Cartridge
19. Dowel pin 20. Gasket 21. Rear cover
22. Copper washer
Refer to GI-11, "
Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.
: Apply multi-purpose grease.
SGIA1187E

PS-32
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
DISASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly.
2. Remove gasket from body assembly.
3. Remove dowel pin, cartridge and side plate from body assembly.
4. Remove pulley mounting nut and washer, then remove pulley from drive shaft.
5. Remove snap ring from drive shaft and press out it.
CAUTION:
When removing snap ring, be careful not to damage drive
shaft.
6. Remove oil seal from body assembly using a flat-bladed screw-
driver.
7. Remove O-ring from body assembly.
8. Remove lock nut, and then remove copper washer, joint and O-
ring.
9. Remove connector bolt, and then remove O-ring, flow control
valve and spring from body assembly
10. Remove mounting bolts of suction pipe, and then remove suc-
tion pipe from body assembly.
11. Remove O-ring from body assembly.
INSPECTION AFTER DISASSEMBLY
Body Assembly and Rear Cover Inspection
Check body assembly and rear cover for internal damage. Replace rear cover if it is damaged. Replace oil
pump assembly if body assembly is damaged.
Cartridge Assembly Inspection
Check cam ring, rotor and vane for damage. Replace cartridge assembly if there are.
Side Plate Inspection
Check side plate for damage. Replace side plate if there are.
Flow Control Valve Inspection
Check flow control valve and spring for damage. Replace if there are.
SST010B
SST034A

PS-34
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45

When installing rotor, turn mark face on rotor to body assem-
bly.
7. Install vane to rotor so that arc of vane faces cam ring side.
8. Check if drive shaft turns smoothly.
9. Install gasket to body assembly.
10. Install rear cover to body assembly, and then tighten mounting
bolts to the specified torque.
11. Install pulley and washer to drive shaft, and then tighten lock nut
at the specified torque.
12. Apply recommended fluid to O-ring. Install spring, flow control
valve and O-ring to body assembly, and then tighten connector
bolt to the specified torque.
13. Apply recommended fluid to O-ring . Install O-ring, joint and cop-
per washer to connector bolt, and then tighten lock nut to the
specified torque.
14. Apply recommended fluid to O-ring, and then install O-ring to
body assembly.
15. Install suction pipe to body assembly.
SGIA0989E
SGIA0613E
SGIA0425E

POWER STEERING OIL PUMP
PS-35
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Revision: 2007 April2007 M35/M45
Disassembly and Assembly (Models with VQ35DE)NGS000DH
COMPONENTS
INSPECTION BEFORE DISASSEMBLY
Disassemble oil pump only when the following malfunctions occur.

If oil leakage is found on oil pump.

Oil pump pulley is damaged or deformed.

Performance of oil pump is low.
1. Pulley 2. Oil seal 3. Bracket
4. Body assembly 5. Suction pipe 6. O-ring
7. Flow control valve B assembly 8. Flow control valve spring 9. Flow control valve A
10. Dowel pin 11. Front side plate 12. Vane
13. Rotor 14. Rotor snap ring 15. Cam ring
16. Rear side plate 17. O-ring 18. Teflon ring
19. O-ring 20. Rear cover 21. Cartridge
Refer to GI-11, "
Components" , and the followings for the symbols in the figure.
: Apply power steering fluid.
: Apply multi-purpose grease.
SGIA1188E

PS-36
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
DISASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Remove rear cover mounting bolts, and then remove rear cover from body assembly.
2. Remove O-ring from body assembly.
3. Remove rear side plate from cartridge, and then remove Teflon ring and O-ring from rear side plate.
4. Remove rotor snap ring using a snap ring plier, and remove pul-
ley from body assembly.
CAUTION:
Remove pulley so as not to be damaged when removing
rotor snap ring.
5. Remove cartridge, front side plate, flow control valve A, flow
control valve spring and flow control valve B assembly from
body assembly.
CAUTION:
Do not drop and damage flow control valve A and flow con-
trol valve B assembly when removing.
6. Remove oil seal from body assembly.
7. Remove mounting bolt of suction pipe, and then remove suction
pipe from body assembly.
8. Remove O-ring from body assembly.
9. Remove bracket mounting bolts, and then remove bracket from
body assembly.
INSPECTION AFTER DISASSEMBLY
Body Assembly and Rear Cover Inspection
Check body assembly and rear cover for internal damage. Replace rear cover if it is damaged. Replace oil
pump assembly if body assembly is damaged.
Cartridge Assembly Inspection
Check cam ring, rotor and vane for damage. Replace cartridge assembly if there are.
Side Plate Inspection
Check side plates (front and rear) for damage. Side plates (front and rear) must be replaced as a set if they
are damaged.
Flow Control Valve Inspection
Check flow control valve A, flow control valve spring and flow control valve B assembly for damage. Replace if
there are.
SGIA0059E
SGIA0526E

POWER STEERING OIL PUMP
PS-37
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PS
Revision: 2007 April2007 M35/M45
ASSEMBLY
NOTE:
Secure oil pump in a vise if necessary.
CAUTION:
Use copper plates when securing in a vise.
1. Apply recommended grease to oil seal lips. Apply recommended
fluid to around oil seal, and then install oil seal to body assembly
using the drift [SST].
2. Install bracket to body assembly, and then tighten mounting
bolts to the specified torque.
3. If dowel pin has been removed, insert it into body assembly by
hand. If cannot be inserted by hand, lightly tap with a hammer.
4. Install flow control valve A, flow control valve spring and flow
control valve B assembly as shown in the figure.
5. Install front side plate (3) with dowel pin (2) on flow control valve
A (1) side as shown in the figure aligning with front side plate
cutout (A) to body assembly (4).
6. Install cam ring as shown in the figure.
7. Install pulley to body assembly.
CAUTION:
Do not damage oil seal when installing pulley.
SGIA0527E
SGIA0526E
SGIA1189E
SGIA0612E