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Home >> Pontiac >> 2009 >> Vibe Base, 2.4 0, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (Engine Mechanical - 1.8L (Lay)) >> Specifications >> Engine Mechanical Specifications

Engine Mechanical Specifications

WARNING: This page is about a different variant/trim than selected.
Application Specification
Metric English
V-Belt Deflection
  • New Belt
 7.5-8.6 mm 0.30-0.34 in
  • Used Belt
 8.0-10.0 mm 0.32-0.39 in
V-Belt Tension
  • New Belt
 637-735 N.m 143-165 lb ft
  • Used Belt
 392-588 N.m 88-132 lb ft
Ignition Timing - With terminals TC and CG of DLC3 connected 8-12° BTDC at idle
Idle Speed 600-700 RPM
Compression
  • Compression Pressure
 1373 kPa 199 psi
  • Minimum Pressure
 1079 kPa 157 psi
  • Difference between each cylinder
 98 kPa 14 psi
Oil Pump Drive Socket - Minimum Sprocket Diameter (With Chain) 48.2 mm 1.898 in
Oil Pump Drive Shaft Socket - Minimum Sprocket Diameter (With Chain) 48.8 mm 1.921 in
Crankshaft Timing Sprocket - Minimum Sprocket Diameter (With Chain) 51.1 mm 2.012 in
Chain Tensioner Slipper - Maximum Wear 1.0 mm 0.039 in
Chain Vibration Damper - Maximum Wear 1.0 mm 0.039 in
Chain Tensioner Plate - Maximum Wear 1.0 mm 0.039 in
Cylinder Head Set Bolt
  • Standard Bolt Length
 146.8-148.2 mm 5.7795-5.8346 in
  • Maximum Bolt Length
 149.2 mm 5.874 in
  • Standard Outside Diameter
 9.77-9.96 mm 0.3846-0.3921 in
  • Minimum Outside Diameter
 9.4 mm 0.3701 in
Ring Pin (Cylinder Head) - Protrusion 6.5-7.5 mm 0.26-0.30 in
Ring Pin (Crankcase) - Protrusion 3 mm 0.12 in
No. 1 Camshaft Bearing - Dimension A-B 0.7 mm or less 0.0276 in or less
No. 2 Camshaft Bearing - Dimension A 1.05-1.75 mm 0.0413-0.0689 in
Camshaft Housing - Seal Diameter 3.5-4.0 mm 0.138-0.158 in
Chain Sub-Assembly - Maximum Chain Elongation 115.2 mm 4.535 in
No. 2 Chain Sub-Assembly - Maximum Chain Elongation 102.1 mm 4.019 in
Camshaft Timing Gear Assembly - Minimum Gear or Sprocket Diameter (With Chain) 96.8 mm 3.811 in
Camshaft Timing Exhaust Gear Assembly - Minimum Gear or Sprocket Diameter (With Chain) 96.8 mm 3.811 in
Camshaft (Intake)
  • Maximum Circle Runout
 0.04 mm 0.0016 in
  • Standard Cam Lobe Height
 42.816-42.916 mm 1.6857-1.6896 in
  • Maximum Can Lobe Height
 42.666 mm 1.6798 in
  • No. 1 Journal Diameter
 34.449-34.465 mm 1.3563-1.3569 in
  • Other Journal Diameter
 22.949-22.965 mm 0.9035-0.9041 in
  • Standard Thrust Clearance - Intake
 0.06-0.155 mm 0.0024-0.0061 in
  • Maximum Thrust Clearance - Intake
 0.17 mm 0.0067 in
Standard Oil Clearance
  • Camshaft No. 1 Journal
 0.03-0.063 mm 0.0012-0.0025 in
  • Camshaft Other Journals
 0.035-0.072 mm 0.0014-0.0028 in
  • Maximum Oil Clearance Camshaft No. 1 Journal
 0.085 mm 0.0033 in
  • Maximum Oil Clearance Camshaft Other Journals
 0.09 mm 0.0035 in
Camshaft No. 2 (Exhaust)
  • Maximum Circle Runout
 0.04 mm 0.0016 in
  • Standard Cam Lobe Height
 44.336-44.436 mm 1.7455-1.7494 in
  • Minimum Can Lobe Height
 44.186 mm 1.7396 in
  • No. 1 Journal Diameter
 34.449-34.465 mm 1.3563-1.3569 in
  • Other Journal Diameter
 22.949-22.965 mm 0.9035-0.9041 in
  • Standard Thrust Clearance - Exhaust
 0.06-0.155 mm 0.0024-0.0061 in
  • Standard Thrust Clearance - Exhaust
 0.17 mm 0.0067 in
Standard Oil Clearance
  • Camshaft No. 1 Journal
 0.03-0.079 mm 0.0012-0.0031 in
  • Camshaft Other Journals
 0.035-0.072 mm 0.0014-0.0028 in
  • Maximum Oil Clearance Camshaft No. 1 Journal
 0.085 mm 0.0033 in
  • Maximum Oil Clearance Camshaft Other Journal
 0.09 mm 0.0035 in
  • Exhaust Manifold - Maximum Warpage
 0.70 mm 0.028 in
Cylinder Head
  • Cylinder Block Side - Maximum Warpage
 0.05 mm 0.0020 in
  • Intake Manifold Side - Maximum Warpage
 0.10 mm 0.0039 in
  • Exhaust Manifold Side - Maximum Warpage
 0.10 mm 0.0039 in
Compression Spring
  • Free Length
 53.36 mm 2.1008 in
  • Maximum Deviation
 1.0 mm 0.0394 in
Intake Valve
  • Standard Overall Length
 109.34 mm 4.3047 in
  • Minimum Overall Length
 108.84 mm 4.2850 in
  • Valve Stem Diameter
 5.470-5.485 mm 0.2154-0.2159 in
  • Standard Margin Thickness
 1.0 mm 0.0394 in
  • Minimum Margin Thickness
 0.50 mm 0.0197 in
  • Valve Seat Width
 1.0-1.4 mm 0.039-0.055 in
Exhaust Valve
  • Standard Overall Length
 108.25 mm 4.2618 in
  • Minimum Overall Length
 107.75 mm 4.2421 in
  • Valve Stem Diameter
 5.465-5.480 mm 0.2152-0.2157 in
  • Standard Margin Thickness
 1.01 mm 0.0398 in
  • Minimum Margin Thickness
 0.50 mm 0.0197 in
  • Valve Seat Width
 1.0-1.4 mm 0.039-0.55 in
Intake Valve Guide Bush
  • Bush Inside Diameter
 5.510-5.530 mm 0.2169-0.2177 in
  • Standard Bush Oil Clearance
 0.025-0.060 mm 0.0010-0.0024 in
  • Maximum Bush Oil Clearance
 0.080 mm 0.0031 in
Bush Bore Diameter
  • Use STD
 10.285-10.306 mm 0.4049-0.4057 in
  • Use O/S 0.05
 10.335-10.356 mm 0.4069-0.4077 in
  • Protrusion Height (Bush)
 9.9-10.3 mm 0.3898-0.4055 in
  • Standard Oil Clearance
 0.025-0.060 mm 0.0010-0.0024 in
Exhaust Valve Guide Bush
  • Bush Inside Diameter
 5.510-5.530 mm 0.2169-0.2177 in
  • Standard Oil Clearance
 0.030-0.065 mm 0.0012-0.0026 in
  • Maximum Oil Clearance
 0.085 mm 0.0033 in
Bush Bore Diameter
  • Use STD
 10.285-10.306 mm 0.4049-0.4057 in
  • Use O/S 0.05
 10.335-10.356 mm 0.4069-0.4077 in
  • Protrusion Height
 11.15-11.55 mm 0.4390-0.4547 in
  • Standard Oil Clearance
 0.030-0.065 mm 0.0012-0.0026 in
  • Protrusion Height (Ring Pin)
 6.5-7.5 mm 0.26-0.30 in
  • Valve Seat Width
 1.0-1.4 mm 0.039-0.055 in
Connecting Rod
  • Standard Oil Clearance
 0.03-0.062 mm 0.0012-0.0024 in
  • Maximum Oil Clearance
 0.07 mm 0.0028 in
  • Standard Oil Clearance
 0.016-0.039 mm 0.0006-0.0015 in
  • Maximum Oil Clearance
 0.05 mm 0.0020 in
Connecting Rod Bearing Thickness
  • Mark 1
 1.489-1.493 mm 0.0586-0.0588 in
  • Mark 2
 1.494-1.497 mm 0.0588-0.0589 in
  • Mark 3
 1.498-1.501 mm 0.0590-0.0591 in
  • Connecting Rod Small End Bore Diameter
 20.012-20.021 mm 0.7879-0.7882 in
Connecting Rod Large End Bore Diameter (Reference)
  • Mark A
 20.012-20.015 mm 0.7879-0.7880 in
  • Mark B
 20.016-20.018 mm 0.7880-0.7881 in
  • Mark C
 20.019-20.021 mm 0.7881-0.7882 in
Connecting Rod Small End Bore Diameter (Resistance)
  • Mark 1
 47.000-47.008 mm 1.8504-1.8507 in
  • Mark 2
 47.009-47.016 mm 1.8507-1.8510 in
  • Mark 3
 47.017-47.024 mm 1.8510-1.8513 in
Crankshaft Pin Diameter
  • Mark 1
 43.992-44.000 mm 1.7320-1.7323 in
  • Mark 2
 43.992-44.000 mm 1.7320-1.7323 in
  • Mark 3
 43.992-44.000 mm 1.7320-1.7323 in
  • Standard Oil Clearance
 0.005-0.011 mm 0.0002-0.0004 in
  • Maximum Oil Clearance
 0.014 mm 0.0006 in
  • Maximum Rod Out-of-Alignment per 100 mm (3.94 in)
 0.05 mm 0.0020 in
  • Maximum Rod twist per 100 mm (3.94 in)
 0.15 mm 0.0059 in
Cylinder Block
  • Maximum Warpage
 0.05 mm 0.0020 in
  • Standard Cylinder Bore Diameter
 80.500-80.513 mm 3.1693-3.1698 in
  • Maximum Cylinder Bore Diameter
 80.633 mm 3.1745 in
  • Protrusion Height (Ring Pin)
 7.5-8.5 mm 0.295-0.335 in
Protrusion Height (Straight Pin)
  • Pin A
 18.5-19.5 mm 0.729-0.768 in
  • Pin B
 5.0-7.0 mm 0.197-0.276 in
  • Pin C
 11-13 mm 0.433-0.512 in
  • Pin D
 5.0-7.0 mm 0.197-0.276 in
  • Pin E
 5.0-6.0 mm 0.197-0.236 in
  • No. 1 Ventilation Case - Seal Packing
 2.0 mm 0.0787 in
Piston
  • Standard Piston Diameter
 80.461-80.471 mm 3.1677-3.1681 in
  • Standard Piston Oil Clearance
 0.029-0.052 mm 0.0011-0.0020 in
  • Maximum Piston Oil Clearance
 0.09 mm 0.0035 in
  • Piston Pin Bore Diameter
 20.006-20.015 mm 0.7876-0.7880 in
Piston Pin Bore Diameter (Reference)
  • Mark A
 20.006-20.009 mm 0.7876-0.7878 in
  • Mark B
 20.010-20.012 mm 0.7878-0.7879 in
  • Mark C
 20.013-20.015 mm 0.7879-0.7880 in
Piston Ring
Ring Groove Clearance
  • No. 1 Ring
 0.020-0.070 mm 0.0008-0.0028 in
  • No. 2 Ring
 0.020-0.060 mm 0.0008-0.0024 in
  • Oil Ring
 0.020-0.065 mm 0.0008-0.0026 in
Standard End Gap
  • No. 1 Ring
 0.2-0.3 mm 0.0079-0.0118 in
  • No. 2 Ring
 0.3-0.5 mm 0.0118-0.0197 in
  • Oil Ring
 0.1-0.4 mm 0.0039-0.0157 in
Maximum End Gap
  • No. 1 Ring
 0.5 mm 0.0197 in
  • No. 2 Ring
 0.7 mm 0.0276 in
  • Oil Ring
 0.7 mm 0.0276 in
Piston Pin
  • Piston Pin Diameter
 20.004-20.013 mm 0.7876-0.7879 in
Piston Pin Diameter (Resistance)
  • Mark A
 20.004-20.007 mm 0.7876-0.7877 in
  • Mark B
 20.008-20.010 mm 0.7877-0.7878 in
  • Mark C
 20.011-20.013 mm 0.7878-0.7879 in
  • Standard Oil Clearance
 -0.001-0.005 mm -0.00004-0.0002 in
  • Maximum Oil Clearance
 0.010 mm 0.0004 in
Connecting Rod Bolt
  • Standard Diameter
 6.6-6.7 mm 0.2598-0.2638 in
  • Minimum Diameter
 6.4 mm 0.252 in
Crankshaft
  • Standard Thrust Clearance
 0.04-0.14 mm 0.0016-0.0055 in
  • Maximum Thrust Clearance
 0.18 mm 0.0071 in
  • Thrust Washer Thickness
 2.43-2.48 mm 0.0957-0.0976 in
Cylinder Block Main Journal Bore Diameter (Reference)
  • Mark 0
 52.000-52.003 mm 2.0472-2.0474 in
  • Mark 1
 52.003-52.005 mm 2.0474-2.0474 in
  • Mark 2
 52.005-52.007 mm 2.0474-2.0475 in
  • Mark 3
 52.007-52.010 mm 2.0475-2.0476 in
  • Mark 4
 52.010-52.012 mm 2.0476-2.0477 in
  • Mark 5
 52.012-52.014 mm 2.0477-2.0478 in
  • Mark 6
 52.014-52.016 mm 2.0478-2.0479 in
Main Journal Diameter 47.988-48.000 mm 1.8893-1.8898 in
  • Maximum Taper and Distortion
 0.004 mm 0.0002 in
Main Journal Diameter (Reference)
  • Mark 0
 47.999-48.000 mm 1.8897-1.8898 in
  • Mark 1
 47.997-47.998 mm 1.8896-1.8897 in
  • Mark 2
 47.995-47.996 mm 1.8896-1.8896 in
  • Mark 3
 47.993-47.994 mm 1.8895-1.8895 in
  • Mark 4
 47.991-47.992 mm 1.8894-1.8894 in
  • Mark 5
 47.988-47.990 mm 1.8893-1.8894 in
Crankshaft Journal Diameter (Reference)
  • Mark 0
 47.999-48.000 mm 1.8897-1.8898 in
  • Mark 1
 47.997-47.998 mm 1.8896-1.8897 in
  • Mark 2
 47.995-47.996 mm 1.8896-1.8896 in
  • Mark 3
 47.993-47.994 mm 1.8895-1.8895 in
  • Mark 4
 47.991-47.992 mm 1.8894-1.8894 in
  • Mark 5
 47.988-47.990 mm 1.8893-1.8894 in
Standard Main Bearing Center Wall Thickness (Reference)
  • Mark 1
 1.994-1.997 mm 0.0785-0.0786 in
  • Mark 2
 1.998-2.000 mm 0.0787-0.0787 in
  • Mark 3
 2.001-2.003 mm 0.0788-0.0789 in
  • Mark 4
 2.004-2.006 mm 0.0789-0.0790 in
  • Maximum Circle Runout
 0.03 mm 0.0012 in
  • Standard Oil Clearance
 0.016-0.039 mm 0.0006-0.0015 in
  • Maximum Oil Clearance
 0.050 mm 0.0020 in
  • Crank Pin Diameter
 43.992-44.000 mm 1.7320-1.7323 in
  • Maximum Taper and Distortion
 0.004 mm 0.0002 in
Crankshaft Bearing Cap Set Bolt
  • Standard Diameter
 84.3-85.7 mm 3.3189-3.3740 in
  • Minimum Diameter
 86.7 mm 3.4134 in
Crankshaft Bearing
  • Dimension A
 0.5-1.0 mm 0.020-0.039 in
  • Dimension A-B
 0.5 mm or less 0.0197 in or less
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