2008 INFINITI FX35 alternator belt

EM-150
< SERVICE INFORMATION >[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
INTAKE MANIFOLD COLLECTOR, INTA
KE MANIFOLD AND EXHAUST MANIFOLD
Unit: mm (in)
SPARK PLUG
CAMSHAFT AND CAMSHAFT BEARING
Unit: mm (in)
Deflection 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 belt 12 (0.47)
7 - 8
(0.28 - 0.31) 6 - 7
(0.24 - 0.28) 294 (30, 66) 730 - 818
(74.5 - 83.4,
164 - 184) 838 - 926
(85.5 - 94.5,
188 - 208)
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
(47.9 - 57.0, 106 - 126)
Applied pushing
force 98 N (10 kg, 22 lb) —
PBIC5323E
Items Limit
Surface distortion Intake manifold collector (upper) 0.1 (0.004)
Intake manifold collector (lower) 0.1 (0.004)
Intake manifold 0.1 (0.004)
Exhaust manifold 0.3 (0.012)
Make NGK
Standard type PLFR5A-11
Hot type PLFR4A-11
Cold type PLFR6A-11
Gap (Nominal) 1.1 mm (0.043 in)
Items Standard Limit
Camshaft journal oil clearance No. 1 0.045 - 0.086 (0.0018 - 0.0034)
0.15 (0.0059)
No. 2, 3, 4 0.035 - 0.076 (0.0014 - 0.0030)
Camshaft bracket inner diameter No. 1 26.000 - 26.021 (1.0236 - 1.0244) —
No. 2, 3, 4 23.500 - 23.521 (0.9252 - 0.9260) —
Camshaft journal diameter No. 1 25.935 - 25.955 (1.0211 - 1.0218) —
No. 2, 3, 4 23.445 - 23.465 (0.9230 - 0.9238) —
Camshaft end play 0.115 - 0.188 (0.0045 - 0.0074) 0.24 (0.0094)
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EM-170
< SERVICE INFORMATION >[VK45DE]
DRIVE BELTS
DRIVE BELTS
ComponentINFOID:0000000001325765
Checking Drive BeltsINFOID:0000000001325766
WARNING:
Be sure to perform when engine is stopped.
 Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.
 Remove front engine undercover with power tool when inspecting power steering oil pump belt.
 Make sure that indicator (single line notch) of eac
h auto tensioner is within the allowable working range
(between three line notches).
NOTE:
 Check auto tensioner indication when engine is cold.
 When new drive belt is installed, the range should be “A”.
 The indicator notch is located on the moving side of auto tensioner for alternator, water pump and A/C
compressor belt, while it is found on the fixed side for power steering oil pump belt.
 Visually check entire belt for wear, damage or cracks.
 If the indicator is out of allowable wo rking range or belt is damaged, replace belt.
Tension AdjustmentINFOID:0000000001325767
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Removal and InstallationINFOID:0000000001325768
REMOVAL
Alternator, Water Pump and A/C Compressor Belt
1. Remove air duct (inlet). Refer to EM-173, "Component".
2. With box wrench, and while securely holding the hexagonal part in pulley center of auto tensioner, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
 Avoid placing hand in a location where pinching may
occur if the holding tool accidentally comes off.
 Do not loosen the hexagonal part in center of drive belt auto-tensioner pulley (Do not tu rn it clockwise). If turned
clockwise, the complete dri ve belt auto-tensioner must be
replaced as a unit, including the pulley.
PBIC2331E
PBIC2976E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

DRIVE BELTSEM-171
< SERVICE INFORMATION > [VK45DE]
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3. Under the above condition, insert a metallic bar of
approximately 6 mm (0.24 in) in diameter (hexagonal
bar wrench shown as example in the figure) through the holding boss to lock auto tensioner pulley arm.
 Leave auto tensioner pulley arm locked until belt is installed again.
4. Remove alternator, water pump and A/C compressor belt.
Power Steering Oil Pump Belt
1. Remove air duct (inlet). Refer to EM-173, "Component".
2. Remove front engine undercover with power tool.
3. Remove alternator, water pump and A/C compressor belt. Refer to "Alternator, Water Pump and A/C Compressor Belt".
4. While securely holding the hexagonal protrusion part of auto tensioner pulley with box wrench, move wrench handle in the
direction of arrow (loosening direction of tensioner).
CAUTION:
Avoid placing hand in a locat ion where pinching may occur
if holding tool accidentally comes off.
5. Under the above condition, insert a metallic bar of approximately 6 mm (0.24 in) in diameter (hexagonal bar wrench shown as
example in the figure) through the holding boss to lock auto ten-
sioner pulley arm.
 Leave auto tensioner pulley arm locked until belt is installed
again.
6. Remove power steering oil pump belt.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
 Make sure belt is securely installed around all pulleys.
 Make sure belt is correctly engaged with the pulley groove.
 Check for engine oil and engine coolan t are not adhered belt and pulley groove.
 Check that belt tension is within the allowable working range, using indicator notch on auto ten-
sioner. Refer to EM-170, "
Checking Drive Belts".
ComponentINFOID:0000000001325769
CAUTION:
The complete drive belt auto-tensioner must be replaced as a unit, including the pulley.
PBIC1543E
1.Auto tensioner ( Us
ed for alternator,
water pump and A/C compressor) 2. Idler pulley 3. Auto tensioner (Use
d for power steer-
ing oil pump belt)
PBIC2788E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
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EM-180
< SERVICE INFORMATION >[VK45DE]
EXHAUST MANIFOLD AND THREE WAY CATALYST
6. Remove radiator. Refer to
CO-40, "Component".
7. Remove drive belts. Refer to EM-170, "
Component".
8. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 as follows:
a. Disconnect air fuel ratio sensor 1 and heated oxygen sensor 2 harness connectors.
b. Remove air fuel ratio sensor 1 and heated oxygen sensor 2 on both bank with heated oxy gen sensor wrench (SST).
CAUTION:
 Be careful not to damage air fuel ratio sensor 1 and heated oxygen sensor 2.
 Discard any air fuel ratio sen sor 1 and heated oxygen sen-
sor 2 which have been dropped onto a hard surface such
as a concrete floor: replace with a new one.
9. Remove exhaust mounting bracket between three way catalysts (right and left bank) and transmission. Refer to EX-3, "
Checking Exhaust System".
10. Disconnect A/C piping from A/C compressor, then re move A/C compressor with power tool. Refer to AT C -
121, "Component".
11. Remove alternator and bracket. Refer to SC-19, "
System Description".
12. Remove exhaust front tube with power tool. Refer to EX-3, "
Checking Exhaust System".
13. Remove steering lower joint at power steering gear assembly side, and release steering lower shaft. Refer to PS-17, "
Removal and Installation".
14. Remove three way catalysts (right and left bank).
15. Remove exhaust manifold covers. (right and left bank)
PBIC2333E
PBIC2334E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ENGINE MAINTENANCE (VQ35DE ENGINE)MA-11
< SERVICE INFORMATION >
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ENGINE MAINTENANCE (VQ35DE ENGINE)
Checking Drive BeltsINFOID:0000000001328900
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) (A) 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 deflect ion or the tension immedi-
ately after installation, first ad just it to the specified value.
Then, after turning crankshaft two turns or more, re-adjust
to the specified value to avo id 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.
Drive Belts Tension AdjustmentINFOID:0000000001328901
CAUTION:
1 : Power steering oil pump
2 : Alternator
3 : Idler pulley
4 : Crankshaft pulley
5 : A/C compressor
JPBIA0421ZZ
JPBIA0422ZZ
Items Deflection 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 belt 12 (0.47)
7 - 8
(0.28 - 0.31) 6 - 7
(0.24 - 0.28) 294 (30, 66) 730 - 818
(74.5 - 83.5, 164 - 184) 838 - 926
(85.5 - 94.5, 188 - 208)
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) —
Portion
Belt 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
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

MA-12
< SERVICE INFORMATION >
ENGINE MAINTENANCE (VQ35DE ENGINE)
 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 te nsion immediately after installation, first adjust it to the specified
value. Then, after turning crankshaft two turns or mo re, re-adjust to the specified value to avoid vari-
ation 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 EM-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 EM-14, "
Checking Drive Belts".
3. Tighten nut (C).
Changing Engine CoolantINFOID:0000000001328902
WARNING:
 To avoid being scalded, do not change en gine 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 pressu re. Then turn radiator cap all the way.
 Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
1 : Alternator and power steering oil pump belt
2: A/C compressor belt
3 : Power steering oil pump
4 : Idler pulley
5 : Alternator
6 : Crankshaft pulley
7: A/C compressor
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
JPBIA0423ZZ
: 34.8 N·m (3.5 kg-m, 26 ft-lb)
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

ENGINE MAINTENANCE (VK45DE ENGINE)MA-19
< SERVICE INFORMATION >
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ENGINE MAINTENANCE (VK45DE ENGINE)
Checking Drive BeltsINFOID:0000000001328909
WARNING:
Be sure to perform when the engine is stopped.
 Remove air duct (inlet) when inspecting drive belt for alternator, water pump and A/C compressor.
 Remove front engine undercover with power tool when inspecting power steering oil pump belt.
 Make sure that indicator (single line notch) of eac h auto tensioner is within the allowable working range
(between three line notches).
NOTE:
 Check auto tensioner indication when engine is cold.
 When new drive belt is installed, the range should be “A”.
 The indicator notch is located on the moving side of the tensioner for alternator, water pump and A/C com-
pressor belt, while it is found on the fi xed side for power steering oil pump belt.
 Visually check entire belt for wear, damage or cracks.
 If the indicator is out of allowable working range or belt is damaged, replace belt.
Tension AdjustmentINFOID:0000000001328910
Belt tensioning is not necessary, as it is automatically adjusted by auto tensioner.
Changing Engine CoolantINFOID:0000000001328911
WARNING:
 To avoid being scalded, do not change engine coolant when 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 pressu re. Then turn radiator cap all the way.
 Be careful not to allow engine coolant to contact drive belts.
DRAINING ENGINE COOLANT
1. Remove front engine undercover with power tool.
PBIC2331E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

SERVICE DATA AND SPECIFICATIONS (SDS)
MA-37
< SERVICE INFORMATION >
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SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and LimitINFOID:0000000001328938
BELT DEFLECTION AND TENSION (VQ35DE)
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on the belt.
BELT DEFLECTION AND TENSION (VK45DE)
ENGINE COOLANT CAPACITY (APPROXIMATE) (VQ35DE)
Unit: (US qt, lmp qt)
ENGINE COOLANT CAPACITY (APPROXIMATE) (VK45DE)
Unit: (US qt, lmp qt)
RADIATOR
Unit: kPa (kg/cm2, psi)
ENGINE OIL CAPACITY (APPROXIMATE) (VQ35DE)
Deflection 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 belt 12 (0.47)
7 - 8
(0.28 - 0.31) 6 - 7
(0.24 - 0.28) 294 (30, 66) 730 - 818
(74.5 - 83.5, 164 - 184) 838 - 926
(85.5 - 94.5, 188 - 208)
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) —
PBIC5323E
Tension of drive belts Auto-adjustment by auto tensioner
Engine coolant capacity (With reservoir tank at “MAX” level) 8.6 (9-1/8, 7-5/8)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (7/8, 3/4)
Engine coolant capacity (With reservoir tank at “MAX” level) 10.0 (10-5/8, 8-3/4)
Reservoir tank engine coolant capacity (At “MAX” level) 0.8 (7/8, 3/4)
Cap relief pressure Standard 78 - 98 (0.8 - 1.0, 11 - 14)
Limit 59 (0.6, 9)
Leakage testing pressure 157 (1.6, 23)
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