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Engine Mechanical - 2.0l (Ltg) or 2.5l (Lcv) - Specifications Cadillac ATS I

Mechanical 20 illustrations ~226 words

Fastener Tightening Specifications (LCV)

ApplicationSpecification
MetricEnglish
Automatic Transmission Flexplate Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass40 Degrees 1
Balancer Chain Guide Bolt10 N.m89 lb in
Balancer Chain Tensioner Bolt10 N.m89 lb in
Balancer Shaft Driven Sprocket Bolt 1
First Pass40 N.m 130 lb ft 1
Final Pass50 Degrees 1
Balancer Shaft Housing Bolt58 N.m43 lb ft
Camshaft Bearing Cap Bolt10 N.m89 lb in
Camshaft Cover Bolt10 N.m89 lb in
Camshaft Cover Heat Shield Bolt10 N.m89 lb in
Camshaft Cover Opening Plug35 N.m26 lb ft
Camshaft Position Actuator Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass100 Degrees 1
Camshaft Position Actuator Solenoid Valve Bolt10 N.m89 lb in
Camshaft Position Sensor Bolt10 N.m89 lb in
Catalytic Converter Brace Bolt - Small22 N.m16 lb ft
Catalytic Converter Brace Bolt - Large50 N.m37 lb ft
Catalytic Converter Nut - Exhaust Manifold 158 N.m43 lb ft
Connecting Rod Bolt 1
First Pass25 N.m 118 lb ft 1
Final Pass110 Degrees 1
Crankshaft Balancer Bolt 1
First Pass150 N.m 1111 lb ft 1
Final Pass180 Degrees 1
Crankshaft Position Sensor Bolt10 N.m89 lb in
Cylinder Head Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass190 Degrees 1
Cylinder Head Core Hole Plug50 N.m37 lb ft
Cylinder Head Oil Gallery Plug40 N.m30 lb ft
Drive Belt Tensioner Bolt58 N.m43 lb ft
Engine Block Oil Gallery Plug - Large, Left Side and Rear Engine Block65 N.m48 lb ft
Engine Block Oil Gallery Plug - Large, Left Side Lower Crankcase65 N.m48 lb ft
Engine Block Oil Gallery Plug - Small, Rear Engine Block40 N.m30 lb ft
Engine Coolant Air Bleed Pipe Bolt10 N.m89 lb in
Engine Coolant Heater Hole Plug60 N.m44 lb ft
Engine Coolant Thermostat Housing Bolt10 N.m89 lb in
Engine Front Cover Bolt - M610 N.m89 lb in
Engine Front Cover Bolt - M1058 N.m43 lb ft
Engine Front Cover Bolt - M825 N.m18 lb ft
Engine Lift Bracket Bolt - Front25 N.m18 lb ft
Engine Lift Bracket Bolt - Rear25 N.m18 lb ft
Engine Oil Cooler Bolt10 N.m89 lb in
Engine Oil Cooler Connector50 N.m37 lb ft
Engine Oil Level Indicator Switch Bolt10 N.m89 lb in
Engine Oil Pressure Sensor27 N.m20 lb ft
Exhaust Manifold Bolt 120 N.m 121 lb ft 1
Exhaust Manifold Heat Shield Bolt14 N.m124 lb in
Exhaust Manifold Stud20 N.m21 lb ft
Flywheel Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass80 Degrees 1
Fuel Feed Intermediate Pipe Nut
First Pass - Fuel Feed Intermediate Pipe Nut to Fuel Rail15 N.m11 lb ft
Second Pass - Fuel Feed Intermediate Pipe Nut to Fuel Pump15 N.m11 lb ft
Third Pass - Fuel Feed Intermediate Pipe Nut to Fuel Rail30 N.m22 lb ft
Final Pass - Fuel Feed Intermediate Pipe Nut to Fuel Pump30 N.m22 lb ft
Fuel Feed Pipe30 N.m22 lb ft
Fuel Feed Pipe Clip Stud10 N.m89 lb in
Fuel Injection Fuel Rail Bolt25 N.m18 lb ft
Fuel Injection Fuel Rail Fuel Pressure Sensor33 N.m24 lb ft
Fuel Pump Bolt15 N.m11 lb ft
Fuel Pump Shield Bolt10 N.m89 lb in
Ignition Coil Bolt10 N.m89 lb in
Intake Manifold Bolt12 N.m106 lb in
Intake Manifold Cover Bolt9 N.m80 lb in
Knock Sensor Bolt25 N.m18 lb ft
Lower Crankcase Bolt - Crankshaft Bearing 1
First Pass20 N.m 115 lb ft 1
Final Pass140 Degrees 1
Lower Crankcase Bolt - Perimeter 125 N.m 118 lb ft 1
Manifold Absolute Pressure (MAP) Sensor Bolt5 N.m44 lb in
Oil Pan Baffle Bolt10 N.m89 lb in
Oil Pan Bolt, Long10 N.m89 lb in
Oil Pan Bolt, Perimeter25 N.m18 lb ft
Oil Pan Bolt, Lower10 N.m89 lb in
Oil Pan Drain Plug25 N.m18 lb ft
Oil Pump Suction Pipe Bolt10 N.m89 lb in
Oil Pump Flow Control Valve Bolt10 N.m89 lb in
Oil Filter Fitting50 N.m37 lb ft
Oil Filter30 N.m22 lb ft
Oxygen Sensor42 N.m31 lb ft
PCV Valve Bolt10 N.m89 lb in
Piston Oil Nozzle Bolt10 N.m89 lb in
Secondary Air Injection Check Valve Bolt25 N.m18 lb ft
Spark Plug20 N.m15 lb ft
Thermal Bypass Pipe Bolt10 N.m89 lb in
Throttle Body Bolt10 N.m89 lb in
Timing Chain Cover Bolt - Engine Front Cover5 N.m44 lb in
Timing Chain Guide Bolt25 N.m18 lb ft
Timing Chain Tensioner Pivot Arm Bolt25 N.m18 lb ft
Timing Chain Tensioner Shoe Bolt25 N.m18 lb ft
Vacuum Pump Bolt10 N.m89 lb in
Water Outlet Bolt12 N.m106 lb in
Water Pump Bolt25 N.m18 lb ft
Water Pump Housing Bolt10 N.m89 lb in
1 Use NEW fastener.

Fastener Tightening Specifications (LCV)

Fastener Tightening Specifications (LTG)

ApplicationSpecification
MetricEnglish
Automatic Transmission Flexplate Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass40 Degrees 1
Balancer Chain Guide Bolt10 N.m89 lb in
Balancer Chain Tensioner Bolt10 N.m89 lb in
Balancer Shaft Driven Sprocket Bolt 1
First Pass40 N.m 130 lb ft 1
Final Pass50 Degrees 1
Balancer Shaft Housing Bolt58 N.m43 lb ft
Camshaft Bearing Cap Bolt10 N.m89 lb in
Camshaft Cover Bolt10 N.m89 lb in
Camshaft Cover Heat Shield Bolt10 N.m89 lb in
Camshaft Cover Opening Plug35 N.m26 lb ft
Camshaft Position Actuator Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass100 Degrees 1
Camshaft Position Actuator Solenoid Valve Bolt10 N.m89 lb in
Camshaft Position Sensor Bolt10 N.m89 lb in
Catalytic Converter Brace Bolt22 N.m16 lb ft
Catalytic Converter Brace Bracket Bolt22 N.m16 lb ft
Catalytic Converter Nut - Exhaust Manifold 150 N.m 137 lb ft 1
Connecting Rod Bolt 1
First Pass25 N.m 118 lb ft 1
Final Pass110 Degrees 1
Crankshaft Balancer Bolt 1
First Pass150 N.m 1111 lb ft 1
Final Pass180 Degrees 1
Crankshaft Position Sensor Bolt10 N.m89 lb in
Cylinder Head Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass190 Degrees 1
Cylinder Head Core Hole Plug50 N.m37 lb ft
Cylinder Head Oil Gallery Plug40 N.m30 lb ft
Drive Belt Tensioner Bolt58 N.m43 lb ft
Engine Block Oil Gallery Plug - Large, Left Side and Rear Engine Block65 N.m48 lb ft
Engine Block Oil Gallery Plug - Large, Left Side Lower Crankcase65 N.m48 lb ft
Engine Block Oil Gallery Plug - Small, Rear Engine Block40 N.m30 lb ft
Engine Coolant Air Bleed Pipe Bolt10 N.m89 lb in
Engine Coolant Heater Hole Plug60 N.m44 lb ft
Engine Coolant Thermostat Housing Bolt10 N.m89 lb in
Engine Front Cover Bolt - M610 N.m89 lb in
Engine Front Cover Bolt - M1058 N.m43 lb ft
Engine Front Cover Bolt - M825 N.m18 lb ft
Engine Lift Bracket Bolt - Front25 N.m18 lb ft
Engine Lift Bracket Bolt - Rear25 N.m18 lb ft
Engine Oil Cooler Bolt10 N.m89 lb in
Engine Oil Cooler Connector50 N.m37 lb ft
Engine Oil Level Indicator Switch Bolt10 N.m89 lb in
Engine Oil Pressure Sensor27 N.m20 lb ft
Exhaust Manifold Bolt 120 N.m 121 lb ft 1
Exhaust Manifold Brace Bolt25 N.m18 lb ft
Exhaust Manifold Brace Nut 125 N.m 118 lb ft 1
Exhaust Manifold Heat Shield Bolt14 N.m124 lb in
Exhaust Manifold Stud20 N.m21 lb ft
Flywheel Bolt 1
First Pass30 N.m 122 lb ft 1
Final Pass80 Degrees 1
Fuel Feed Intermediate Pipe Nut
First Pass - Fuel Feed Intermediate Pipe Nut to Fuel Rail15 N.m11 lb ft
Second Pass - Fuel Feed Intermediate Pipe Nut to Fuel Pump15 N.m11 lb ft
Third Pass - Fuel Feed Intermediate Pipe Nut to Fuel Rail30 N.m22 lb ft
Final Pass - Fuel Feed Intermediate Pipe Nut to Fuel Pump30 N.m22 lb ft
Fuel Feed Pipe30 N.m22 lb ft
Fuel Feed Pipe Clip Stud10 N.m89 lb in
Fuel Injection Fuel Rail Bolt25 N.m18 lb ft
Fuel Injection Fuel Rail Fuel Pressure Sensor33 N.m24 lb ft
Fuel Pump Bolt15 N.m11 lb ft
Fuel Pump Shield Bolt10 N.m89 lb in
Ignition Coil Bolt10 N.m89 lb in
Intake Manifold Bolt12 N.m106 lb in
Intake Manifold Cover Bolt9 N.m80 lb in
Knock Sensor Bolt25 N.m18 lb ft
Lower Crankcase Bolt - Crankshaft Bearing 1
First Pass20 N.m 115 lb ft 1
Final Pass140 Degrees 1
Lower Crankcase Bolt - Perimeter 125 N.m 118 lb ft 1
Manifold Absolute Pressure (MAP) Sensor Bolt5 N.m44 lb in
Oil Pan Baffle Bolt10 N.m89 lb in
Oil Pan Bolt, Long10 N.m89 lb in
Oil Pan Bolt, Perimeter25 N.m18 lb ft
Oil Pan Bolt, Lower10 N.m89 lb in
Oil Pan Drain Plug25 N.m18 lb ft
Oil Pump Suction Pipe Bolt10 N.m89 lb in
Oil Pump Flow Control Valve Bolt10 N.m89 lb in
Oil Filter30 N.m22 lb ft
Oxygen Sensor42 N.m31 lb ft
PCV Valve Bolt10 N.m89 lb in
Piston Oil Nozzle Bolt10 N.m89 lb in
Spark Plug20 N.m15 lb ft
Thermal Bypass Pipe Bolt10 N.m89 lb in
Throttle Body Bolt10 N.m89 lb in
Timing Chain Cover Bolt - Engine Front Cover5 N.m44 lb in
Timing Chain Guide Bolt25 N.m18 lb ft
Timing Chain Tensioner Pivot Arm Bolt25 N.m18 lb ft
Timing Chain Tensioner Shoe Bolt25 N.m18 lb ft
Turbocharger Coolant Feed and Return Pipe Bolt35 N.m26 lb ft
Turbocharger Coolant Feed Pipe Bolt10 N.m89 lb in
Turbocharger Coolant Return Pipe to Camshaft Cover Heat Shield Bolt14 N.m124 lb in
Turbocharger Exhaust Pipe Stud25 N.m18 lb ft
Turbocharger Nut 1
First Pass30 N.m 122 lb ft 1
Final Pass90 Degrees 1
Turbocharger Oil Feed Pipe Bolt35 N.m26 lb ft
Turbocharger Oil Feed and Return Pipe Bolt10 N.m89 lb in
Vacuum Pump Bolt10 N.m89 lb in
Water Outlet Bolt10 N.m89 lb in
Water Pump Bolt25 N.m18 lb ft
Water Pump Housing Bolt10 N.m89 lb in
1 Use NEW fastener.

Fastener Tightening Specifications (LTG)

Engine Mechanical Specifications (LCV)

ApplicationSpecification
MetricEnglish
General Data
Engine TypeInline 4 Cylinder
Displacement2.5 L152 CID
RPOLCV
Liter (VIN)
Bore87.992-88.008 mm3.4642-3.4649 in
Stroke101 mm3.976 in
Compression Ratio11.20
Spark Plug Gap0.95-1.10 mm0.037-0.043 in
Block
Crankshaft Main Bearing Bore Diameter60.862-60.876 mm2.3961-2.3967 in
Cylinder Bore Diameter87.992-88.008 mm3.4642-3.4649 in
Cylinder Bore Out-of-Round - Maximum0.013 mm0.0005 in
Cylinder Head Deck Surface Flatness - over 25 mm length0.025 mm0.001 in
Cylinder Head Deck Surface Flatness - over 150 mm length0.050 mm0.002 in
Engine Block to Bedplate Flatness - overall0.1 mm0.0039 in
Engine Block to Bedplate Flatness - straightness0.050 mm in 100 mm0.002 in in 3.937 in
Piston Deck Height - Below Deck1.105-1.675 mm0.0435-0.0659 in
Camshaft
Camshaft End Play0.040-0.307 mm0.0016-0.0121 in
Camshaft Journal Diameter - Journal 134.935-34.960 mm1.3754-1.3764 in
Camshaft Journal Diameter - Journal 2 thru 526.935-26.960 mm1.0604-1.0614 in
Camshaft Thrust Width - Camshaft with Phaser installed30.025-30.175 mm1.1821-1.1880 in
Camshaft Thrust Width - Cylinder Head29.868-29.890 mm1.1759-1.1768 in
Connecting Rod
Connecting Rod Bearing to Crankpin Clearance0.030-0.065 mm0.0012-0.0026 in
Connecting Rod Bore Diameter - Bearing End52.118-52.134 mm2.0519-2.05252 in
Connecting Rod Bore Diameter - Pin End20.007-20.017 mm0.7877-0.7881 in
Connecting Rod Side Clearance0.070-0.370 mm0.0028-0.0146 in
Connecting Rod Straightness - Bend - Maximum0.017 mm0.0007 in
Connecting Rod Straightness - Twist - Maximum0.040 mm0.0016 in
Crankshaft
Connecting Rod Pin Diameter48.999-49.015 mm1.9291-1.9297 in
Crankshaft End Play0.040-0.270 mm0.0016-0.0106 in
Crankshaft Main Bearing Clearance0.020-0.048 mm0.0008-0.0019 in
Crankshaft Main Journal Diameter55.993-56.009 mm2.2044-2.2051 in
Cylinder Head
Surface Flatness - Block Deck - in 25 mm0.025 mm0.0001 in
Surface Flatness - Block Deck - in 150 mm0.050 mm0.0019 in
Surface Flatness - Block Deck - between bolts0.030 mm0.0012 in
Surface Flatness - Block Deck - Overall0.100 mm0.0039 in
Valve Guide Bore - Exhaust6.000-6.020 mm0.2362-0.2370 in
Valve Guide Bore - Intake6.000-6.020 mm0.2362-0.2370 in
Valve Lifter Bore Diameter - Stationary Lash Adjusters12.008-12.030 mm0.4728-0.4736 in
Valve Seat Angle - Relief Surface30 Degrees
Valve Seat Angle - Seating Surface45 Degrees
Valve Seat Angle - Undercut Surface60 Degrees
Valve Seat Runout - Maximum0.080 mm0.0031 in
Lubrication System
Oil Pressure - @700 RPM 100°C154-220 kPa22-32 psi
Oil Capacity4.7L5.0 quarts
Piston Rings
Piston Ring End Gap - Top0.15-0.25 mm0.006-0.010 in
Piston Ring End Gap - Second0.20-0.45 mm0.008-0.018 in
Piston Ring End Gap - Oil Control0.15-0.65 mm0.006-0.026 in
Piston Ring to Groove Clearance - Top0.04-0.08 mm0.0015-0.0031 in
Piston Ring to Groove Clearance - Second0.030-0.070 mm0.0012-0.0030 in
Piston Ring to Groove Clearance - Oil Control0.058-0.207 mm0.0023-0.0081 in
Piston Ring Thickness - Top1.170-1.190 mm0.0461-0.0469 in
Piston Ring Thickness - Second1.470-1.490 mm0.0579-0.0587 in
Piston Ring Thickness - Oil Control - Maximum0.490 mm0.0193 in
Piston Ring Thickness - Oil Control - Spacer0.929-1.006 mm0.0366-0.0396 in
Pistons and Pins
Pin - Piston Pin Clearance to Connecting Rod Bore0.007-0.020 mm0.0003-0.0008 in
Pin - Piston Pin Clearance to Piston Pin Bore0.002-0.010 mm0.0001-0.0004 in
Pin - Piston Pin Diameter21.997-22.000 mm0.8660-0.8661 in
Pin - Piston Pin End Play0.413-1.269 mm0.0163-0.0500 in
Piston - Piston Diameter - @14.8 mm up87.968-87.982 mm3.4633-3.4638 in
Piston - Piston Pin Bore Diameter22.002-22.007 mm0.8662-0.8664 in
Piston - Piston Ring Groove Width - Top1.23-1.25 mm0.0484-0.0492 in
Piston - Piston Ring Groove Width - Second1.52-1.54 mm0.0598-0.0606 in
Piston - Piston Ring Groove Width - Oil Control2.01-2.03 mm0.0791-0.0799 in
Piston - Piston to Bore Clearance - w/o polymer0.010-0.041 mm0.0004-0.0016 in
Valve System
Valves - Valve Face Angle45 Degrees
Valves - Valve Face Runout - Maximum0.040 mm0.0016 in
Valves - Valve Seat Runout - Maximum0.080 mm0.0031 in
Valves - Valve Seat Gauge Ball Height - Exhaust10.885-11.115 mm0.4285-0.4376 in
Valves - Valve Seat Gauge Ball Height - Intake9.086-9.314 mm0.3577-0.3667 in
Valves - Valve Stem Diameter - Exhaust5.945-5.9650.2341-0.2348 in
Valves - Valve Stem Diameter - Intake5.955-5.975 mm0.2344-0.2352 in
Valves - Valve Stem Installed HeightCheck and Record
Valves - Valve Stem to Guide Clearance - Exhaust0.035-0.075 mm0.0013-0.0030 in
Valves - Valve Stem to Guide Clearance - Intake0.025-0.065 mm0.0010-0.0026 in
Valve Lash Adjusters - Valve Lash Adjuster Diameter - Stationary Lash Adjuster11.986-12.000 mm0.0005-0.0020 in
Valve Lash Adjusters - Valve Lash-Adjuster-to-Bore Clearance - Stationary Lash Adjuster0.013-0.051 mm3.2210-3.2299 in
Valve Springs - Valve Spring Installed Height35.0 mm1.3779 in
Valve Springs - Valve Spring Load - Closed - @35 mm247-273 N56-61 lb
Valve Springs - Valve Spring Load - Open - @24 mm598-662 N134-149 lb

Engine Mechanical Specifications (LCV)

Engine Mechanical Specifications (LTG)

ApplicationSpecification
MetricEnglish
General Data
Engine TypeInline 4 Cylinder
Displacement2.0 L122 CID
RPOLTG
Liter (VIN)
Bore85.992-86.008 mm3.3855-3.3861 in
Stroke86 mm3.386 in
Compression Ratio9.50
Spark Plug Gap0.95-1.10 mm0.037-0.043 in
Block
Crankshaft Main Bearing Bore Diameter60.862-60.876 mm2.3961-2.3967 in
Cylinder Bore Diameter85.992-86.008 mm3.3855-3.3861 in
Cylinder Bore Out-of-Round - Maximum0.013 mm0.0005 in
Cylinder Head Deck Surface Flatness - over 25 mm length0.025 mm0.001 in
Cylinder Head Deck Surface Flatness - over 150 mm length0.050 mm0.002 in
Engine Block to Bedplate Flatness - overall0.1 mm0.0039 in
Engine Block to Bedplate Flatness - straightness0.050 mm in 100 mm0.002 in in 3.937 in
Piston Deck Height - Below Deck1.155-1.725 mm0.0455-0.0679 in
Camshaft
Camshaft End Play0.040-0.307 mm0.0016-0.0121 in
Camshaft Journal Diameter - Journal 134.935-34.960 mm1.3754-1.3764 in
Camshaft Journal Diameter - Journal 2 thru 526.935-26.960 mm1.0604-1.0614 in
Camshaft Thrust Width - Camshaft with Phaser installed30.025-30.175 mm1.1821-1.1880 in
Camshaft Thrust Width - Cylinder Head29.868-29.890 mm1.1759-1.1768 in
Connecting Rod
Connecting Rod Bearing to Crankpin Clearance0.030-0.073 mm0.0012-0.0029 in
Connecting Rod Bore Diameter - Bearing End52.118-52.134 mm2.0519-2.05252 in
Connecting Rod Bore Diameter - Pin End24.007-24.017 mm0.9452-0.9455 in
Connecting Rod Side Clearance0.070-0.370 mm0.0028-0.0146 in
Connecting Rod Straightness - Bend - Maximum0.017 mm0.0007 in
Connecting Rod Straightness - Twist - Maximum0.040 mm0.0016 in
Crankshaft
Connecting Rod Pin Diameter48.999-49.015 mm1.9291-1.9297 in
Crankshaft End Play0.040-0.270 mm0.0016-0.0106 in
Crankshaft Main Bearing Clearance0.020-0.048 mm0.0008-0.0019 in
Crankshaft Main Journal Diameter55.993-56.009 mm2.2044-2.2051 in
Cylinder Head
Surface Flatness - Block Deck - in 25 mm0.025 mm0.0001 in
Surface Flatness - Block Deck - in 150 mm0.050 mm0.0019 in
Surface Flatness - Block Deck - between bolts0.030 mm0.0012 in
Surface Flatness - Block Deck - Overall0.100 mm0.0039 in
Valve Guide Bore - Exhaust6.000-6.020 mm0.2362-0.2370 in
Valve Guide Bore - Intake6.000-6.020 mm0.2362-0.2370 in
Valve Lifter Bore Diameter - Stationary Lash Adjusters12.008-12.030 mm0.4728-0.4736 in
Valve Seat Angle - Relief Surface30 Degrees
Valve Seat Angle - Seating Surface45 Degrees
Valve Seat Angle - Undercut Surface60 Degrees
Valve Seat Runout - Maximum0.080 mm0.0031 in
Lubrication System
Oil Pressure - @700 RPM 100°C140-200 kPa20-29 psi
Oil Capacity - 2WD4.7L5.0 quarts
Oil Capacity - 4WD/AWD5.7L6.0 quarts
Piston Rings
Piston Ring End Gap - Top0.20-0.35 mm0.008-0.014 in
Piston Ring End Gap - Second0.35-0.55 mm0.014-0.022 in
Piston Ring End Gap - Oil Control0.25-0.75 mm0.010-0.030 in
Piston Ring to Groove Clearance - Top0.04-0.08 mm0.0015-0.0031 in
Piston Ring to Groove Clearance - Second0.030-0.070 mm0.0012-0.0030 in
Piston Ring to Groove Clearance - Oil Control0.024-0.176 mm0.0009-0.0069 in
Piston Ring Thickness - Top1.170-1.190 mm0.0461-0.0469 in
Piston Ring Thickness - Second1.470-1.490 mm0.0579-0.0587 in
Piston Ring Thickness - Oil Control - Rail0.447-0.473 mm0.0176-0.0186 in
Piston Ring Thickness - Oil Control - Spacer0.960-1.040 mm0.0378-0.0409 in
Pistons and Pins
Pin - Piston Pin Clearance to Connecting Rod Bore0.007-0.020 mm0.0003-0.0008 in
Pin - Piston Pin Clearance to Piston Pin Bore0.005-0.013 mm0.0002-0.0005 in
Pin - Piston Pin Diameter23.997-24.000 mm0.9448-0.9449 in
Pin - Piston Pin End Play0.263-1.164 mm0.0104-0.0458 in
Piston - Piston Diameter - @14.8 mm up85.968-85.982 mm3.3846-3.3851 in
Piston - Piston Pin Bore Diameter24.005-24.010 mm0.9451-0.9453 in
Piston - Piston Ring Groove Width - Top1.23-1.25 mm0.0484-0.0492 in
Piston - Piston Ring Groove Width - Second1.52-1.54 mm0.0598-0.0606 in
Piston - Piston Ring Groove Width - Oil Control2.01-2.03 mm0.0791-0.0799 in
Piston - Piston to Bore Clearance - w/o polymer0.010-0.041 mm0.0004-0.0016 in
Valve System
Valves - Valve Face Angle45 Degrees
Valves - Valve Face Runout - Maximum0.040 mm0.0016 in
Valves - Valve Seat Runout - Maximum0.080 mm0.0031 in
Valves - Valve Seat Gauge Ball Height - Exhaust12.746-12.976 mm0.4912-0.5038 in
Valves - Valve Seat Gauge Ball Height - Intake12.425-12.653 mm0.4892-0.4981 in
Valves - Valve Stem Diameter - Exhaust5.945-5.965 mm0.2341-0.2348 in
Valves - Valve Stem Diameter - Intake5.955-5.975 mm0.2344-0.2352 in
Valves - Valve Stem Installed HeightCheck and Record
Valves - Valve Stem to Guide Clearance - Exhaust0.038-0.082 mm0.0015-0.0032 in
Valves - Valve Stem to Guide Clearance - Intake0.030-0.057 mm0.0012-0.0022 in
Valve Lash Adjusters - Valve Lash Adjuster Diameter - Stationary Lash Adjuster11.986-12.000 mm0.0005-0.0020 in
Valve Lash Adjusters - Valve Lash-Adjuster-to-Bore Clearance - Stationary Lash Adjuster0.013-0.051 mm3.2210-3.2299 in
Valve Springs - Valve Spring Installed Height35.0 mm1.3779 in
Valve Springs - Valve Spring Load - Closed - @35 mm247-273 N56-61 lb
Valve Springs - Valve Spring Load - Open - @24 mm598-662 N134-149 lb

Engine Mechanical Specifications (LTG)

Adhesives, Fluids, Lubricants, and Sealers (LCV)

ApplicationType of MaterialGM Part Number
United StatesCanada
Balance Shaft Bearings5W-20*1925948688863951
Cam Lobes5W-20*1925948688863951
Camshaft CoverSealant1237852188901148
Crank Sensor O-ring5W-20*1925948688863951
Cylinder Bores5W-20*1925948688863951
Cylinder Head PlugsThreadlocker1234538210953489
Engine Block Threaded PlugsSealant1234600410953480
Engine Block to BedplateSealant1237852188901148
Engine Front CoverSealant1237852188901148
Engine Oil5W-20*1925948688863951
Engine Oil - Alternate0W-201925948719259784
Fuel Injector O-rings5W-20*1925948688863951
Fuel Injector Tip Insulators, for Multiple Port Injection Only5W-20*1925948688863951
Hydraulic Lash Adjusters5W-20*1925948688863951
Ignition CoilsLubricant1926090119260902
Intake and Exhaust Valve Stems5W-20*1925948688863951
Lower Oil PanSealant1237852188901148
Main Bearings5W-20*1925948688863951
Oil Filter - Threads and O-ring Lead-in Chamfers5W-20*1925948688863951
Oil Level Indicator Tube O-ringLubricant8886258688862827
Oil Pan to Bedplate JointSealant1237852188901148
Oil Pump- Pump Elements5W-20*1925948688863951
Oxygen Sensor ThreadsAnti-seize8886247788862478
Piston Pin to Piston/Rod- Pin Bores of Piston and Rod5W-20*1925948688863951
Rod Bearings- Rod Pins of Crankshaft5W-20*1925948688863951
Thread Repair Cutting OilLubricant1052864992881
Thread RepairCleaner8886265088901247
Timing Chain Tensioner CoverSealant1237852188901148
ValvesParts Immersion Solvent1234536810953514
Valve Rocker Arm/Valve Tip5W-20*1925948688863951
Water Feed Tube O-ringsLubricant1926090119260902
*0W-20 is an approved alternate engine oil for 5W-20, see Engine Oil - Alternate

Adhesives, Fluids, Lubricants, and Sealers (LCV)

Adhesives, Fluids, Lubricants, and Sealers (LTG)

ApplicationType of MaterialGM Part Number
United StatesCanada
Balance Shaft Bearings5W-301929300019286321
Cam Lobes5W-301929300019286321
Camshaft CoverSealant1237852188901148
Crank Sensor O-ring5W-301929300019286321
Cylinder Bores5W-301929300019286321
Cylinder Head PlugsThreadlocker1234538210953489
Engine Block Threaded PlugsSealant1234600410953480
Engine Block to BedplateSealant1237852188901148
Engine Front CoverSealant1237852188901148
Engine Oil5W-301929300019286321
Fuel Injector O-rings5W-301929300019286321
Fuel Injector Tip Insulators, for Multiple Port Injection Only5W-301929300019286321
Hydraulic Lash Adjusters5W-301929300019286321
Ignition CoilsLubricant1926090119260902
Intake and Exhaust Valve Stems5W-301929300019286321
Lower Oil PanSealant1237852188901148
Main Bearings5W-301929300019286321
Oil Filter - Threads and O-ring Lead-in Chamfers5W-301929300019286321
Oil Level Indicator Tube O-ringLubricant8886258688862827
Oil Pan to Bedplate JointSealant1237852188901148
Oil Pump- Pump Elements5W-301929300019286321
Oxygen Sensor ThreadsAnti-seize8886247788862478
Piston Pin to Piston/Rod- Pin Bores of Piston and Rod5W-301929300019286321
Rod Bearings- Rod Pins of Crankshaft5W-301929300019286321
Thread Repair Cutting OilLubricant1052864992881
Thread RepairCleaner8886265088901247
Timing Chain Tensioner CoverSealant1237852188901148
ValvesParts Immersion Solvent1234536810953514
Valve Rocker Arm/Valve Tip5W-301929300019286321
Water Feed Tube O-ringsLubricant1926090119260902

Adhesives, Fluids, Lubricants, and Sealers (LTG)

Scheme 63

Scheme 63: Engine Block - Front View
Scheme 63: Engine Block - Front View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M10x1.542021121221321434.01.3534.01.35

Engine Block - Front View

Scheme 64

Scheme 64: Engine Block - Back View
Scheme 64: Engine Block - Back View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M10x1.542021121221321434.01.3524.01.35
4M12x1.7586585685785885927.51.0827.51.08
5M16x1.542021121221321434.01.3534.01.35

Engine Block - Back View

Scheme 65

Scheme 65: Engine Block - Right Side View
Scheme 65: Engine Block - Right Side View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M10x1.542021121221321434.01.3534.01.35
4M12x1.7586585685785885927.51.0827.51.08

Engine Block - Right Side View

Scheme 66

Scheme 66: Engine Block - Bottom View
Scheme 66: Engine Block - Bottom View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14

Engine Block - Bottom View

Scheme 67

Scheme 67: Engine Block - Left Side View
Scheme 67: Engine Block - Left Side View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M10x1.542021121221321434.01.3534.01.35
4M16x1.542021121221321422.00.86622.00.866

Engine Block - Left Side View

Scheme 68

Scheme 68: Engine Block - Top View
Scheme 68: Engine Block - Top View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M11x2.0108723None72472588.03.4680.03.15

Engine Block - Top View

Scheme 69

Scheme 69: Lower Crankcase - Bottom View
Scheme 69: Lower Crankcase - Bottom View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M8x1.2518121320620720820929.01.1429.01.14
2M10x1.542021121221321434.01.3534.01.35

Lower Crankcase - Bottom View

Scheme 70

Scheme 70: Lower Crankcase - Right Side View
Scheme 70: Lower Crankcase - Right Side View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M10x1.542021121221321434.01.3534.01.35

Lower Crankcase - Right Side View

Scheme 71

Scheme 71: Lower Crankcase - Left Side View
Scheme 71: Lower Crankcase - Left Side View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M10x1.542021121221321434.01.3534.01.35
4M16x1.542021121221321422.00.86622.00.866

Lower Crankcase - Left Side View

Scheme 72

Scheme 72: Cylinder Head - Top View
Scheme 72: Cylinder Head - Top View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.020520120220320423.00.90723.00.907
2M6x1.0205701None20320423.00.90723.00.907

Cylinder Head - Top View

Scheme 73

Scheme 73: Cylinder Head Right Side View - Intake Manifold Deck Face
Scheme 73: Cylinder Head Right Side View - Intake Manifold Deck Face
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth MaximumTap Depth Maximum
EN 42385MMINMMIN
1M6x1.016103120120220320423.00.90723.00.907
2M6x1.020520120220320423.00.90723.00.907
3M6x1.0205701None20320423.00.90723.00.907

Cylinder Head Right Side View - Intake Manifold Deck Face

Scheme 74

Scheme 74: Cylinder Head Left Side View - Exhaust Manifold Deck Face
Scheme 74: Cylinder Head Left Side View - Exhaust Manifold Deck Face
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385-850MM(IN)MM(IN)
1M6x1.020520120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14
3M8x1.2521020620720820929.01.1429.01.14

Cylinder Head Left Side View - Exhaust Manifold Deck Face

Scheme 75

Scheme 75: Cylinder Head - Front View
Scheme 75: Cylinder Head - Front View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M8x1.251812920620720820929.01.1429.01.14
2M8x1.251812720620720820929.01.1429.01.14
3M8x1.2518121320620720820929.01.1429.01.14
4M10x1.542021121221321434.01.3534.01.35

Cylinder Head - Front View

Scheme 76

Scheme 76: Cylinder Head - Back View
Scheme 76: Cylinder Head - Back View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth MaximumTap Depth Maximum
EN 42385MMINMMIN
1M6X1205201202203204200.787160.63
2M6X1205701None203204200.787160.63
3M8x1.2518121320620720820929.01.1429.01.14
4M12x1.75865856857858859180.709140.551

Cylinder Head - Back View

Scheme 77

Scheme 77: Upper Oil Pan - Top View
Scheme 77: Upper Oil Pan - Top View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907

Upper Oil Pan - Top View

Scheme 78

Scheme 78: Upper Oil Pan - Bottom View
Scheme 78: Upper Oil Pan - Bottom View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907
2M8x1.2518121320620720820929.01.1429.01.14

Upper Oil Pan - Bottom View

Scheme 79

Scheme 79: Upper Oil Pan - Front View
Scheme 79: Upper Oil Pan - Front View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M10x1.521621121221321434.01.3534.01.35
2M8x1.2518121320620720820929.01.1429.01.14

Upper Oil Pan - Front View

Scheme 80

Scheme 80: Upper Oil Pan - Back View
Scheme 80: Upper Oil Pan - Back View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M6x1.016103120120220320423.00.90723.00.907

Upper Oil Pan - Back View

Scheme 81

Scheme 81: Engine Front Cover - Top View
Scheme 81: Engine Front Cover - Top View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385MM(IN)MM(IN)
1M5x0.83005300130023003300423.00.90723.00.907
2M6x1.020520120220320423.00.90723.00.907

Engine Front Cover - Top View

Scheme 82

Scheme 82: Engine Front Cover - Front View
Scheme 82: Engine Front Cover - Front View
Service Call OutThread SizeInsertDrillCounterbore ToolTapDriverDrill Depth (Maximum)Tap Depth (Maximum)
EN 42385-850MM(IN)MM(IN)
1M6x1.01610520120220320423.00.90723.00.907
2M6x1.042020120220320423.00.90723.00.907

Engine Front Cover - Front View

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