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Engine Mechanical Specifications (LAP, LE8)

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Engine Mechanical Specifications

Application Specification
Metric English
General Data
  • Engine Type
 Inline 4 Cylinder
  • Displacement
 2.2 L 134 CID
  • RPO
 LAP, LE8
  • Liter (VIN)
 F
  • Bore
 85.992-86.008 mm 3.3855-3.3861 in
  • Stroke
 94.6 mm 3.727 in
  • Compression Ratio
 10.0:1
Balance Shaft
  • Bearing Clearance
 0.030-0.060 mm 0.0012-0.0024 in
  • Bearing Diameter - Inside - Carrier
 20.050-20.063 mm 0.7894-0.7899 in
  • Bearing Diameter - Outside - Carrier
 41.975-41.995 mm 1.6526-1.6534 in
  • Bearing Journal Diameter
 20.000-20.020 mm 0.7874-0.7882 in
  • Bushing Clearance
 0.033-0.102 mm 0.0013-0.0040 in
  • Bushing Diameter - Inside
 36.776-36.825 mm 1.4479-1.4498 in
  • Bushing Journal Diameter
 36.723-36.743 mm 1.4458-1.4466 in
  • End Play
 0.050-0.300 mm 0.0020-0.0118 in
Block
  • Balance Shaft Bearing Bore Diameter - Carrier
 42.000-42.016 mm 1.6535-1.6542 in
  • Balance Shaft Bushing Bore Diameter
 40.763-40.776 mm 1.6048-1.6054 in
  • Crankshaft Main Bearing Bore Diameter
 64.068-64.082 mm 2.5224-2.5229 in
  • Cylinder Bore Diameter
 85.992-86.008 mm 3.3855-3.3861 in
  • Cylinder Bore Out-of-Round - Maximum
 0.010 mm 0.0004 in
  • Cylinder Bore Taper - Maximum
 0.010 mm 0.0004 in
  • Cylinder Head Deck Surface Flatness - Transverse
 0.030 mm 0.0012 in
  • Cylinder Head Deck Surface Flatness - Longitude
 0.050 mm 0.002 in
  • Cylinder Head Deck Surface Flatness - Overall
 0.08 mm 0.0031 in
Camshaft
  • Camshaft End Play
 0.040-0.144 mm 0.0016-0.0057 in
  • Camshaft Journal Diameter
 26.935-26.960 mm 1.0604-1.0614 in
  • Camshaft Thrust Surface
 21.000-21.052 mm 0.8268-0.8252 in
Connecting Rod
  • Connecting Rod Bearing Clearance
 0.029-0.073 mm 0.0011-0.0029 in
  • Connecting Rod Bore Diameter - Bearing End
 52.118-52.134 mm 2.0519-2.05252 in
  • Connecting Rod Bore Diameter - Pin End
 20.007-20.017 mm 0.7877-0.7881 in
  • Connecting Rod Side Clearance
 0.070-0.370 mm 0.0028-0.0146 in
  • Connecting Rod Straightness - Bend - Maximum
 0.021 mm 0.0083 in
  • Connecting Rod Straightness - Twist - Maximum
 0.04 mm 0.0157 in
Crankshaft
  • Connecting Rod Journal Diameter
 49.000-49.014 mm 1.9291-1.9297 in
  • Crankshaft End Play
 0.050-0.380 mm 0.0012-0.0150 in
  • Crankshaft Main Bearing Clearance
 0.031-0.067 mm 0.0012-0.0026 in
  • Crankshaft Main Journal Diameter
 55.994-56.008 mm 2.2045-2.2050 in
Cylinder Head
  • Overall Height, Minimum
 128.9 mm 5.07 in
  • Surface Flatness - Block Deck - Transverse
 0.030 mm 0.0012 in
  • Surface Flatness - Block Deck - Longitude
 0.050 mm 0.002 in
  • Surface Flatness - Block Deck - Overall
 0.1 mm 0.004 in
  • Valve Guide Bore - Exhaust
 6.000-6.012 mm 0.2362-0.2367 in
  • Valve Guide Bore - Intake
 6.000-6.012 mm 0.2362-0.2367 in
  • Valve Lifter Bore Diameter - Stationary Lash Adjusters
 12.013-12.037 mm 0.4730-0.4739 in
  • Valve Seat Angle - Relief Surface
 30 Degrees
  • Valve Seat Angle - Seating Surface
 45 Degrees
  • Valve Seat Angle - Undercut Surface
 60 Degrees
  • Valve Seat Roundness - Maximum
 0.025 mm 0.0010 in
  • Valve Seat Runout - Maximum
 0.080 mm 0.0031 in
  • Valve Seat Width - Exhaust Seating Surface
 1.600 mm 0.0630 in
  • Valve Seat Width - Intake Seating Surface
 1.200 mm 0.0472 in
Lubrication System
  • Oil Pressure - Minimum - @1000 RPM @ 90°C (194°F)
 206.84-482.63 kPa 30-70 psi
  • Oil Capacity
 4.8L 5.0 quarts
Piston Rings
  • Piston Ring End Gap - First Compression Ring
 0.20-0.35 mm 0.008-0.014 in
  • Piston Ring End Gap - Second Compression Ring
 0.35-0.55 mm 0.014-0.022 in
  • Piston Ring End Gap - Oil Control Ring - Rails
 0.25-0.75 mm 0.010-0.030 in
  • Piston Ring to Groove Clearance - First Compression Ring
 0.04-0.08 mm 0.0015-0.0031 in
  • Piston Ring to Groove Clearance - Second Compression Ring
 0.030-0.069 mm 0.0012-0.0027 in
  • Piston Ring to Groove Clearance - Oil Control Ring
 0.058-0.207 mm 0.0023-0.0081 in
  • Piston Ring Thickness - Upper First Compression Ring
 1.170-1.190 mm 0.0461-0.0469 in
  • Piston Ring Thickness - Upper Second Compression Ring
 1.471-1.490 mm 0.0579-0.0587 in
  • Piston Ring Thickness - Oil Control Ring - Rail - Maximum
 0.473 mm 0.0186 in
  • Piston Ring Thickness - Oil Control Ring - Spacer
 0.929-1.006 mm 0.0366-0.0396 in
Pistons and Pins
  • Pin - Piston Pin Clearance to Connecting Rod Bore
 0.007-0.020 mm 0.0003-0.0008 in
  • Pin - Piston Pin Clearance to Piston Pin Bore
 0.004-0.012 mm 0.0002-0.0005 in
  • Pin - Piston Pin Diameter
 19.997-20.000 mm 0.7873-0.7874 in
  • Pin - Piston Pin End Play
 0.210-1.266 mm 0.0083-0.0498 in
  • Piston - Piston Diameter - @14.5 mm up
 85.967-85.982 mm 3.3845-3.3851 in
  • Piston - Piston Pin Bore Diameter
 20.002-20.007 mm 0.07875-0.7877 in
  • Piston - Piston Ring Groove Width - Top
 1.23-1.25 mm 0.0484-0.0492 in
  • Piston - Piston Ring Groove Width - Second
 1.52-1.54 mm 0.0598-0.0606 in
  • Piston - Piston Ring Groove Width - Oil Control
 2.01-2.03 mm 0.0791-0.0799 in
  • Piston - Piston To Bore Clearance, without polymer
 0.010-0.041 mm 0.0004-0.0016 in
Valve System
  • Valves - Valve Face Angle
 45 Degrees
  • Valves - Valve Face Runout - Maximum
 0.04 mm 0.0016 in
  • Valves - Valve Seat Runout - Maximum
 0.080 mm 0.0031 in
  • Valves - Valve Face Seat Width - Exhaust
 1.6000 mm 0.06299 in
  • Valves - Valve Face Seat Width - Intake
 1.2000 mm 0.04724 in
  • Valves - Valve Head Diameter - Exhaust
 29.950-30.250 mm 1.1791-1.1909 in
  • Valves - Valve Head Diameter - Intake
 34.950-35.250 mm 1.3760-1.4154 in
  • Valves - Valve Head O.D. and Chamfer Height - Exhaust
 1.1174 mm 0.04399 in
  • Valves - Valve Head O.D. and Chamfer Height - Intake
 1.0526 mm 0.04144 in
  • Valves - Valve Stem Diameter - Exhaust
 5.935-5.950 mm 0.2337-0.2343 in
  • Valves - Valve Stem Diameter - Intake
 5.955-5.970 mm 0.2344-0.2355 in
  • Valves - Valve Stem Height - Closed
 32.500 mm 1.2795 in
  • Valves - Valve Stem to Guide Clearance - Exhaust
 0.050-0.077 mm 0.0020-0.0026 in
  • Valves - Valve Stem to Guide Clearance - Intake
 0.030-0.057 mm 0.0012-0.0022 in
  • Valve Lifters - Valve Lifter Diameter - Stationary Lash Adjuster
 11.986-12.000 mm 0.0005-0.0020 in
  • Valve Lifters - Valve Lifter-to-Bore Clearance - Stationary Lash Adjuster
 0.013-0.051 mm 3.2210-3.2299 in
  • Valve Rocker Arms - Rocker Arm Ratio
 1.68 to 1
  • Valve Rocker Arms - Rocker Arm Roller Diameter
 17.740-17.800 mm 0.6987-0.7008 in
  • Valve Springs - Valve Spring Free Length
 41.400-44.200 mm 1.6299-1.7402 in
  • Valve Springs - Valve Spring Installed Height - Closed
 32.500 mm 1.2795 in
  • Valve Springs - Valve Spring Installed Height - Open
 22.500 mm 0.8858 in
  • Valve Springs - Valve Spring Load - Closed - @32.5 mm
 245.0-271.0 N 55-61 lb
  • Valve Springs - Valve Spring Load - Open - @22.5 mm
 525.0-575.0 N 118-129 lb
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