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Engine Mechanical: Specifications Infiniti FX45 I

Mechanical 15 illustrations ~491 words

PARTS REQUIRING ANGLE TIGHTENING

  1. Use angle wrench [SST: KV10112100 (BT8653-A)] for the final tightening of the following engine parts: Cylinder head bolts Main bearing cap bolts Connecting rod cap nuts Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angle tightening)
  2. Do not use a torque value for final tightening.
  3. The torque value for these parts are for a preliminary step.
  4. Ensure thread and seat surfaces are clean and coated with engine oil.

Scheme 1

Scheme 1: Removal Of Liquid Gasket Sealing
Scheme 1: Removal Of Liquid Gasket Sealing
  1. After removing mounting bolts and nuts, separate the mating surface using seal cutter (SST) and remove old liquid gasket sealing. CAUTION: Be careful not to damage the mating surfaces.
  2. In areas where seal cutter (SST) is difficult to use, use plastic hammer to lightly tap the areas where liquid gasket is applied. CAUTION: If for some unavoidable reason a flat-blade screwdriver is used, be careful not to damage the mating surfaces.

Scheme 2

Scheme 2: Liquid Gasket Application Procedure
Scheme 2: Liquid Gasket Application Procedure

Scheme 3

Scheme 3
Scheme 3

Scheme 4

Scheme 4
Scheme 4
  1. Using scraper, remove old liquid gasket adhering to the liquid gasket application surface and the mating surface. Remove liquid gasket completely from the groove of the liquid gasket application surface, mounting bolts, and bolt holes.
  2. Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating use) to remove adhering moisture, grease and foreign materials.
  3. Attach liquid gasket tube to tube presser [SST: WS39930000 ( - )]. Use Genuine RTV Silicone Sealant or equivalent. Refer to RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS .
  4. Apply liquid gasket without breaks to the specified location with the specified dimensions. If there is a groove for the liquid gasket application, apply liquid gasket to the groove. As for the bolt holes, normally apply liquid gasket inside the holes. Occasionally, it should be applied outside the holes. Make sure to read the text of this article. Within five minutes of liquid gasket application, install the mating component. If liquid gasket protrudes, wipe it off immediately. Do not retighten after the installation. Wait 30 minutes or more after installation before refilling engine with engine oil and engine coolant. CAUTION: If there are specific instructions in this article, observe them.

GENERAL SPECIFICATIONS

ApplicationSpecification
Displacement274 Cu. In. (4.5L)
Bore3.66 In. (93 mm)
Stroke3.256 In. (82.7 mm)
Compression Pressure164-191 psi (11.5-13.5 kg/cm 2 )
Compression Ratio10.5:1
Fuel SystemSFI

GENERAL SPECIFICATIONS

VALVE CLEARANCE SPECIFICATIONS

ValveIn. (mm)
Exhaust.011-.015 (.29-.37)
Intake.010-.013 (.26-.34)

VALVE CLEARANCE SPECIFICATIONS

CRANKSHAFT MAIN BEARINGS & CONNECTING ROD BEARINGS SPECIFICATIONS

ApplicationIn. (mm)
Crankshaft
End Play
Standard.0039-.0098 (.10-.25)
Service Limit.0118 (.30)
Runout.0039 (.10)
Main Bearings
Journal Diameter (No. 1 & 5) (1)
Grade No. G2.5182-2.5183 (63.963-63.964)
Grade No. H2.5182-2.5182 (63.962-63.963)
Grade No. J2.5181-2.5182 (63.961-63.962)
Grade No. K2.5181-2.5181 (63.960-63.961)
Grade No. L2.5181-2.5181 (63.959-63.960)
Grade No. M2.5180-2.5181 (63.958-63.959)
Grade No. N2.5180-2.5180 (63.957-63.958)
Grade No. P2.5179-2.5180 (63.956-63.957)
Grade No. R2.5179-2.5179 (63.955-63.956)
Grade No. S2.5179-2.5179 (63.954-63.955)
Grade No. T2.5178-2.5179 (63.953-63.954)
Grade No. U2.5178-2.5178 (63.952-63.953)
Grade No. V2.5178-2.5178 (63.951-63.952)
Grade No. W2.5177-2.5178 (63.950-63.951)
Grade No. X2.5177-2.5177 (63.949-63.950)
Grade No. Y2.5176-2.5177 (63.948-63.949)
Grade No. 12.5176-2.5177 (63.947-63.948)
Grade No. 22.5176-2.5176 (63.946-63.947)
Grade No. 32.5175-2.5176 (63.945-63.946)
Grade No. 42.5175-2.5175 (63.944-63.945)
Grade No. 52.5174-2.5175 (63.943-63.944)
Grade No. 62.5174-2.5174 (63.942-63.943)
Grade No. 72.5174-2.5174 (63.941-63.942)
Grade No. 92.5173-2.5174 (63.940-63.941)
Journal Diameter (No. 2, 3 & 4) (1)
Grade No. A2.5182-2.5183 (63.963-63.964)
Grade No. B2.5182-2.5182 (63.962-63.963)
Grade No. C2.5181-2.5182 (63.961-63.962)
Grade No. D2.5181-2.5181 (63.960-63.961)
Grade No. E2.5181-2.5181 (63.959-63.960)
Grade No. F2.5180-2.5181 (63.958-63.959)
Grade No. G2.5180-2.5180 (63.957-63.958)
Grade No. H2.5179-2.5180 (63.956-63.957)
Grade No. J2.5179-2.5179 (63.955-63.956)
Grade No. K2.5179-2.5179 (63.954-63.955)
Grade No. L2.5178-2.5179 (63.953-63.954)
Grade No. M2.5178-2.5178 (63.952-63.953)
Grade No. N2.5178-2.5178 (63.951-63.952)
Grade No. P2.5177-2.5178 (63.950-63.951)
Grade No. R2.5177-2.5177 (63.949-63.950)
Grade No. S2.5176-2.5177 (63.948-63.949)
Grade No. T2.5176-2.5177 (63.947-63.948)
Grade No. U2.5176-2.5176 (63.946-63.947)
Grade No. V2.5175-2.5176 (63.945-63.946)
Grade No. W2.5175-2.5175 (63.944-63.945)
Grade No. X2.5174-2.5175 (63.943-63.944)
Grade No. Y2.5174-2.5174 (63.942-63.943)
Grade No. 12.5174-2.5174 (63.941-63.942)
Grade No. 22.5173-2.5174 (63.940-63.941)
Journal Out-Of-Round.0001 (.002)
Journal Taper.0001 (.002)
Oil Clearance
Standard (No. 1 & 5).00004-.0004 (.001-.011)
Service Limit.0008 (.021)
Standard (No. 2, 3 & 4).0003-.0007 (.007-.017)
Service Limit.0011 (.027)
Connecting Rod Bearings
Journal Diameter (1)
Grade No. 02.0460-2.0462 (51.968-51.974)
Grade No. 12.0457-2.0460 (51.962-51.968)
Grade No. 22.0455-2.0457 (51.956-51.962)
Journal Out-Of-Round.0001 (.002)
Journal Taper.0001 (.002)
Oil Clearance
Standard.0008-.0018 (.020-.045)
Service Limit.0022 (.055)
(1) To locate grade marks (Scheme 5)
(1)To locate grade marks (Scheme 5)

CRANKSHAFT MAIN & CONNECTING ROD BEARINGS

MAIN BEARING SPECIFICATIONS

Grade NumberID ColorThickness - In. (mm)
0Black.0978-.0979 (2.483-2.486)
1Brown.0979-.0980 (2.486-2.489)
2Green.0980-.0981 (2.489-2.492)
3Yellow.0981-.0982 (2.492-2.495)
4Blue.0982-.0983 (2.495-2.598)
5Pink.0983-.0985 (2.498-2.501)
6Purple.0985-.0986 (2.501-2.504)
7White.0986-.0987 (2.504-2.507)
8Red.0987-.0988 (2.507-2.510)
(1) Grade is the same for lower and upper bearings.
(1)Grade is the same for lower and upper bearings.

MAIN BEARING SPECIFICATIONS (MATCHED SET) (1)

Grade NumberID ColorThickness - In. (mm)
01
UpperBlack.0978-.0979 (2.483-2.486)
LowerBrown.0979-.0980 (2.486-2.489)
12
UpperBrown.0979-.0980 (2.486-2.489)
LowerGreen.0980-.0981 (2.489-2.492)
23
UpperGreen.0980-.0981 (2.489-2.492)
LowerYellow.0981-.0982 (2.492-2.495)
34
UpperYellow.0981-.0982 (2.492-2.495)
LowerBlue.0982-.0983 (2.495-2.598)
45
UpperBlue.0982-.0983 (2.495-2.598)
LowerPink.0983-.0985 (2.498-2.501)
56
UpperPink.0983-.0985 (2.498-2.501)
LowerPurple.0985-.0986 (2.501-2.504)
67
UpperPurple.0985-.0986 (2.501-2.504)
LowerWhite.0986-.0987 (2.504-2.507)
78
UpperWhite.0986-.0987 (2.504-2.507)
LowerRed.0987-.0988 (2.507-2.510)
(1) Grade is different for lower and upper bearings.
(1)Grade is different for lower and upper bearings.

MAIN BEARING SPECIFICATIONS (MISMATCHED SET) (1)

CONNECTING RODS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter
Pin Bore (1)
Grade No. 0.8661-.8664 (22.000-22.006)
Grade No. 1.8664-.8666 (22.006-22.012)
Crankpin Bore2.1654-2.1659 (55.000-55.013)
Center-To-Center Length5.785-5.789 (146.95-147.05)
Maximum Bend Per 3.94 In. (100 mm).006 (.15)
Maximum Twist Per 3.94 In. (100 mm).012 (.30)
Side Play
Standard.0079-.0138 (.20-.35)
Service Limit.0157 (.40)
(1) To locate grade marks (Scheme 5)
(1)To locate grade marks (Scheme 5)

CONNECTING RODS

CONNECTING ROD BEARING SPECIFICATIONS

Grade NumberID ColorThickness - In. (mm)
0No Color.0591-.0592 (1.500-1.503)
1Brown.0592-.0593 (1.503-1.506)
2Green.0593-.0594 (1.506-1.509)

CONNECTING ROD BEARING SPECIFICATIONS

PISTONS, PISTON PINS & PISTON RINGS SPECIFICATIONS

ApplicationIn. (mm)
Pistons
Clearance.0004-.0012 (.010-.030)
Diameter (1)
Grade No. 13.6606-3.6610 (92.980-92.990)
Grade No. 23.6610-3.6614 (92.990-93.000)
Grade No. 33.6614-3.6618 (93.000-93.010)
.008 In. (.20 mm) Oversize3.6685-3.6697 (93.180-93.210)
Pins
Diameter (1)
Grade No. 01.8657-.8659 (21.989-21.995)
Grade No. 02.8659-.8662 (21.995-22.001)
Piston Interference Fit.0001-.0002 (.002-.006)
Rod Bushing Clearance
Standard.0002-.0007 (.005-.017)
Service Limit.0012 (.030)
Rings
No. 1
End Gap.0087-.0126 (.22-.32)
Limit.022 (.56)
Side Clearance.0016-.0031 (.040-.080)
Limit.0043 (.11)
No. 2
End Gap.0087-.0126 (.22-.32)
Limit.0205 (.52)
Side Clearance.0012-.0028 (.030-.070)
Limit.0039 (.10)
No. 3 (Oil Control)
End Gap.0079-.0236 (.20-.60)
Limit.0378 (.96)
Side Clearance.0006-.0020 (.015-.050)
(1) To locate grade marks (Scheme 5)
(1)To locate grade marks (Scheme 5)

PISTONS, PINS & RINGS

CYLINDER BLOCK SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Bore
Standard Diameter (1)
Grade No. 13.6614-3.6618 (93.000-93.010)
Grade No. 23.6618-3.6622 (93.010-93.020)
Grade No. 33.6622-3.6626 (93.020-93.030)
Main Journal Inner Diameter Grade (Without Bearing)
Journal Diameter (1)
Grade No. A2.7143-2.7144 (68.944-68.945)
Grade No. B2.7144-2.7144 (68.945-68.946)
Grade No. C2.7144-2.7144 (68.946-68.947)
Grade No. D2.7144-2.7145 (68.947-68.948)
Grade No. E2.7145-2.7145 (68.948-68.949)
Grade No. F2.7145-2.7146 (68.949-68.950)
Grade No. G2.7146-2.7146 (68.950-68.951)
Grade No. H2.7146-2.7146 (68.951-68.952)
Grade No. J2.7146-2.7147 (68.952-68.953)
Grade No. K2.7147-2.7147 (68.953-68.954)
Grade No. L2.7147-2.7148 (68.954-68.955)
Grade No. M2.7148-2.7148 (68.955-68.956)
Grade No. N2.7148-2.7148 (68.956-68.957)
Grade No. P2.7148-2.7149 (68.957-68.958)
Grade No. R2.7149-2.7149 (68.958-68.959)
Grade No. S2.7149-2.7150 (68.959-68.960)
Grade No. T2.7150-2.7150 (68.960-68.961)
Grade No. U2.7150-2.7150 (68.961-68.962)
Grade No. V2.7150-2.7151 (68.962-68.963)
Grade No. W2.7151-2.7151 (68.963-68.964)
Grade No. X2.7151-2.7152 (68.964-68.965)
Grade No. Y2.7152-2.7152 (68.965-68.966)
Grade No. 12.7152-2.7152 (68.966-68.967)
Grade No. 22.7152-2.7153 (68.967-68.968)
Maximum Taper.0006 (.015)
Maximum Out-Of-Round.0006 (.015)
Maximum Deck Warpage (2).004 (.10)
(1) To locate grade marks (Scheme 5) (2) Maximum resurfacing limit of cylinder block and cylinder head combined is.008 In. (.20).
(1)To locate grade marks (Scheme 5)
(2)Maximum resurfacing limit of cylinder block and cylinder head combined is .008 In. (.20).

CYLINDER BLOCK

OIL PUMP SPECIFICATIONS

ApplicationClearance - In. (mm)
Body-To-Outer Gear.0045-.0079 (.114-.200)
Inner Gear-To-Outer GearLess Than .0071 (.180)
Housing-To-Inner Gear (1).0012-.0028 (.030-.070)
Housing-To-Outer Gear (1).0012-.0035 (.030-.090)
Inner Gear Shoulder-To-Housing.0018-.0036 (.045-.091)
Regulator Valve-To-Body Clearance.0016-.0038 (.040-.097)
(1) Lay straightedge across gears and housing. Insert feeler gauge between straightedge and gear.
(1)Lay straightedge across gears and housing. Insert feeler gauge between straightedge and gear.

OIL PUMP SPECIFICATIONS

ENGINE VALVES & VALVE SPRINGS SPECIFICATIONS

ApplicationIn. (mm)
Intake Valves
Face Angle45 Degrees 15 Min-45 Degrees 45 Min
Head Diameter1.417-1.429 (36.00-36.30)
Valve Margin.0453-.0571 (1.15-1.45)
Valve Length3.8020 (96.57)
Stem Diameter.2351-.2354 (5.972-5.980)
Valve Tip Maximum Refinish.008 (.20)
Exhaust Valves
Face Angle45 Degrees 15 Min.-45 Degrees 45 Min.
Head Diameter1.228-1.240 (31.20-31.50)
Valve Margin.0728-.0846 (1.85-2.50)
Valve Length3.720 (94.50)
Stem Diameter.2347-.2350 (5.962-5.970)
Valve Tip Maximum Refinish.008 (.20)
Valve Springs
Free Length1.8247-1.8444 (46.35-46.85)
Out-Of-Square.079 (2.00)
Lbs. @ In. (kg @ mm)
Pressure
Standard37-42 @ 1.331 (16.8-19.3 @ 33.8)
Service Limit65-74 @ .961 (29.6-33.7 @ 24.4)

VALVES & VALVE SPRINGS

CYLINDER HEAD SPECIFICATIONS

ApplicationIn. (mm)
Cylinder Head Height (1)4.98 (126.4)
Maximum Warpage (2).004 (.10)
Valve Seats
Seat Angle45 Degrees
Seat Width (2002 & 2003 Models)
Exhaust.0508-.0594 (1.29-1.51)
Intake.0430-.0516 (1.09-1.31)
Seat Width (2004 Model)
Exhaust.047-.063 (1.20-1.60)
Intake.040-.055 (1.00-1.40)
Seat Bore (Oversize)
Exhaust1.2874-1.2880 (32.700-32.716)
Intake1.4764-1.4770 (37.500-37.516)
Valve Guides
Cylinder Head Valve Guide Bore I.D.
Standard.3927-.3935 (9.975-9.996)
Service Limit.4006-.4014 (10.175-10.196)
Valve Guide I.D..2362-.2369 (6.000-6.018)
Valve Guide Installed Height
Exhaust.394-.409 (10.0-10.4)
Intake.398-.406 (10.1-10.3)
Valve Stem-To-Guide Oil Clearance
Exhaust
Standard.0012-.0022 (.030-.056)
Service Limit.004 (.10)
Intake
Standard.0008-.0018 (.020-.046)
Service Limit.003 (.08)
(1) Measure from cylinder head cover surface to head gasket surface. (2) Maximum resurfacing limit of cylinder block and cylinder head combined is .008 (.20).
(1)Measure from cylinder head cover surface to head gasket surface.
(2)Maximum resurfacing limit of cylinder block and cylinder head combined is .008 (.20).

CYLINDER HEAD

CAMSHAFT SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter1.0236-1.0244 (26.000-26.021)
End Play.0045-.0074 (.115-.188)
Journal Diameter
No. 11.0212-1.0218 (25.938-25.955)
No. 2, 3 & 41.0218-1.0224 (25.953-25.970)
Camshaft Runout
StandardLess Than .0008 (.020)
Service Limit.002 (.05)
Sprocket RunoutLess Than .006 (.15)
Lobe Height
Exhaust
Standard1.7293-1.7368 (43.925-44.115)
Service Limit.008 (.20)
Intake
Standard1.7663-1.7738 (44.865-45.055)
Service Limit.008 (.20)
Oil Clearance
Standard
Journal No. 1.0018-.0033 (.045-.083)
Journal No. 2, 3, & 4.0012-.0027 (.030-.068)

CAMSHAFT

VALVE LIFTERS SPECIFICATIONS

ApplicationIn. (mm)
Bore Diameter1.3386-1.3392 (34.000-34.016)
Lifter Diameter1.3372-1.3376 (33.965-33.975)
Oil Clearance.0010-.0020 (.025-.051)

VALVE LIFTERS

TORQUE SPECIFICATIONS

ApplicationFt Lbs. (N.m)
Auto Tensioner
Alternator, Water Pump, & A/C Compressor16 (22)
Power Steering Oil Pump Belt16 (22)
Camshaft Sprocket38 (52)
Connecting Rod Cap54 (73)
Crankshaft Pulley
Step 169 (93)
Step 2(1)
Cylinder Head (2)
Step 172 (98)
Step 2Loosen To Zero
Step 332 (44)
Step 4(1)
Step 5(1)
Drive Plate65 (88)
EVAP Canister Purge Volume Control Solenoid Valve11 (15)
Exhaust Manifold (3)21 (28)
Fuel Tube Assembly
Step 189 INCH Lbs. (10)
Step 217 (23)
Heated Oxygen Sensor33 (45)
Idler Pulley21 (28)
Intake Manifold (4)
Upper21 (28)
Lower21 (28)
Knock Sensor15 (21)
Main Bearing Cap (5)
Step 1 (M12 Bolt)29 (39)
Step 2 (M9 Bolt)22 (30)
Step 3 (M12 Bolt)(6)
Step 4 (M9 Bolt)(7)
Step 5 (M10 Side Bolt)36 (49)
Oil Galley Plugs
"A" (With Copper Washer) (8)40 (54)
"B" (8)15 (19.6)
"C" & "D" (With Copper Washer) (8)46 (62.7)
Oil Filter13 (17)
Oil Pan Drain Plug25 (34)
Oil Pressure Switch11 (15)
Oil Strainer16 (22)
Spark Plug18 (25)
Timing Chain Slack Guide12 (16)
Timing Chain Tensioner Guide12 (16)
INCH Lbs. (N.m)
Camshaft Bracket (9)
Step 1 (Bolts 9-12)18 (2)
Step 2 (Bolts 1-8)18 (2)
Step 3 (Bolts 13-14)18 (2)
Step 4 (All Bolts)53 (6)
Step 5 (Bolts 1-12)89 (10)
Step 6 (Bolts 13-14 Left Bank Only)23 Ft. Lbs. (31)
Camshaft Position Sensor (PHASE)80 (9)
Chain Tensioner62 (7)
Chain Tensioner Cover80 (9)
Crankshaft Position Sensor (POS)80 (9)
Electric Throttle Control Actuator71 (8)
Engine Coolant Temperature Sensor18 (2)
Engine Cover35 (4)
Exhaust Manifold Cover53 (6)
Front Cover (10)115 (13)
Fuel Feed Damper71 (8)
Ignition Coil35 (4)
Intake Valve Timing Control Cover89 (10)
Intake Valve Timing Control Solenoid Valve89 (10)
Intake Valve Timing Control Position Sensor80 (9)
Mass Air Flow Sensor35 (4)
Oil Level Gauge Guide106 (12)
Oil Pan (11)
M6 Bolt80 (9)
M8 Bolt16 (22)
Oil Pump80 (9)
PCV Tube106 (12)
Pressure RegulatorNA
Rear Oil Seal RetainerNA
Rear Plate CoverNA
Rocker Cover (12)
Step 118 (2)
Step 271 (8)
(1) Tighten an additional 60 degrees. (2) Tighten in sequence. (Scheme 6) (3) Tighten in sequence. (Scheme 7) (4) Tighten in sequence. (Scheme 8)& (Scheme 9). (5) Tighten in sequence. (Scheme 10) (6) Tighten an additional 40 degrees. (7) Tighten an additional 30 degrees. (8) (Scheme 11) (9) Tighten in sequence. (Scheme 12) (10) Tighten in sequence. (Scheme 13) (11) Tighten in sequence. (Scheme 14) (12) Tighten in sequence. (Scheme 15)
(1)Tighten an additional 60 degrees.
(2)Tighten in sequence. (Scheme 6)
(3)Tighten in sequence. (Scheme 7)
(4)Tighten in sequence. (Scheme 8)& (Scheme 9).
(5)Tighten in sequence. (Scheme 10)
(6)Tighten an additional 40 degrees.
(7)Tighten an additional 30 degrees.
(9)Tighten in sequence. (Scheme 12)
(10)Tighten in sequence. (Scheme 13)
(11)Tighten in sequence. (Scheme 14)
(12)Tighten in sequence. (Scheme 15)

TORQUE SPECIFICATIONS

Scheme 5

Scheme 5
Scheme 5

Scheme 6

Scheme 6
Scheme 6

Scheme 7

Scheme 7
Scheme 7

Scheme 8

Scheme 8
Scheme 8

Scheme 9

Scheme 9
Scheme 9

Scheme 10

Scheme 10
Scheme 10

Scheme 11

Scheme 11
Scheme 11

Scheme 12

Scheme 12
Scheme 12

Scheme 13

Scheme 13
Scheme 13

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15

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