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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1620 (ENGINE MECHANICAL - 3.8L)SPECIFICATIONSENGINE MECHANICAL SPECIFICATIONS
2004 Oldsmobile Bravada AWD

Engine Mechanical Specifications

2004 Oldsmobile Bravada AWDSECTION Engine Mechanical Specifications
WARNING: This page is about a different car, the 2003 Buick Regal. 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 90 degrees V-6
  Displacement 3.8L 231 cu in
  RPO L36, L67
  VIN K, 1
  Bore 96.52 mm 3.8 in
  Stroke 86.36 mm 3.4 in
  Compression Ratio VIN K - 4 Compression Strokes 9.4:1
  Compression Ratio VIN 1 - 4 Compression Strokes 8.5:1
  Firing Order 1-6-5-4-3-2
  Spark Plug Gap 1.52 mm 0.60 in
Balance Shaft
  Bearing Bore Diameter - Front 51.973-51.999 mm 2.0462-2.0472 in
  Bearing Bore Diameter-Rear-In Block 47.584-47.612 mm 1.8735-1.8745 in
  Bearing Inside Diameter - Rear 38.117-38.194 mm 1.5007-1.5037 in
  Bearing Journal Diameter - Rear 38.072-38.105 mm 1.4989-1.5002 in
  Bearing Clearance - Rear 0.0127-0.1219 mm 0.0005-0.0048 in
  End Play 0.0-0.171 mm 0.0-0.0067 in
  Gear Lash 0.050-0.125 mm 0.002-0.0049 in
Block
  Balance Shaft Bearing Bore Diameter - Front 51.973-51.999 mm 2.0462-2.0472 in
  Balance Shaft Bearing Inside Diameter - Rear 38.118-38.194 mm 1.5007-1.5037 in
  Balance Shaft Bearing Bore Diameter - Rear, In Block 47.584-47.612 mm 1.8735-1.8745 in
  Camshaft Bearing Inside Diameter - Front and Rear 46.970-46.934 mm 1.8428-1.8492 in
  Camshaft Bearing Inside Diameter - Middle #2, #3 46.977-46.942 mm 1.8481-1.8495 in
  Crankshaft Main Bearing Bore Diameter 68.249-68.270 mm 2.6870-2.6878 in
  Cylinder Bore Diameter 98.5 mm 3.8 in
  Cylinder Bore Out-of-Round - Diametral 0.0254 mm 0.001 in
  Cylinder Bore Taper 0.0254 mm 0.001 in
  Cylinder Head Deck Height 216.459 mm 8.522 in
  Cylinder Head Deck Surface Flatness - Overall 0.0762 mm 0.003 in
  Valve Lifter Bore Diameter 21.424-21.450 mm 0.8435-0.8445 in
Camshaft
  Camshaft Bearing Inside Diameter - 1 and 4 46.970-46.934 mm 1.8478-1.8492 in
  Camshaft Bearing Inside Diameter 2 and 3 46.977-46.942 mm 1.8481-1.8495 in
  Camshaft Journal Diameter 47.655-46.858 mm 1.8462-1.8448 in
  Camshaft Journal Out-of-Round 0.00635 mm 0.00025 in
  Camshaft Journal to Bearing Clearance 0.041-0.119 mm 0.0016-0.0047 in
  Camshaft Lobe Duration - Exhaust 330 Crankshaft degrees
  Camshaft Lobe Duration - Intake 320 Crankshaft degrees
  Camshaft Lobe Lift - Exhaust 6.56 mm 0.258 in
  Camshaft Lobe Lift - Intake 6.56 mm 0.258 in
  Camshaft Lobe Overlap 96 Crankshaft degrees
Connecting Rod
  Connecting Rod Bearing Clearance 0.0127-0.0660 mm 0.0005-0.0026 in
  Connecting Rod Bore Diameter 60.295-60.312 mm 2.37378-2.3745 in
  Connecting Rod Length - Center to Center - S/C 143.205-143.307 mm 5.638-5.642 in
  Connecting Rod Length - Center to Center - Non S/C 145.796-145.898 mm 5.740-5.744 in
  Connecting Rod Side Clearance 0.102-0.508 mm 0.004-0.0200 in
Crankshaft
  Connecting Rod Journal Diameter 57.1170-57.1475 mm 2.2487-2.2499 in
  Connecting Rod Journal Out-of-Round 0.00508 mm 0.00020 in
  Connecting Rod Journal Taper 0.00889 mm 0.00035 in
  Crankshaft End Play 0.076-0.276 mm 0.003-0.011 in
  Crankshaft Main Bearing Clearance - #1 0.0178-0.0406 mm 0.0007-0.0016 in
  Crankshaft Main Bearing Clearance - #2, 3 and 4 0.0229-0.0457 mm 0.0009-0.0018 in
  Crankshaft Main Journal Diameter 63.470-63.495 mm 2.4988-2.4998 in
  Crankshaft Main Journal Out-of-Round 0.00635 mm 0.00025 in
  Crankshaft Main Journal Taper 0.00889 mm 0.00035 in
  Crankshaft Rear Flange Runout 0.05 mm 0.002 in
  Crankshaft Runout - from Main 2 & 3 to 1 & 4 0.076 mm 0.003 in
Cylinder Head
  Combustion Chamber Depth - at Measurement Point 3.9166-5.4356 mm 0.154-0.214 in
  Cylinder Head Height/Thickness 103.492-104.178 mm 4.0745-4.1015 in
  Surface Finish 0.0032 mm 0.000125 in
  Surface Flatness - Block Deck 0.1016mm 0.004 in
  Surface Flatness - Exhaust Manifold Deck 0.1016 mm 0.004 in
  Surface Flatness - Intake Manifold Deck 0.1016 mm 0.004 in
  Valve Guide Bore - Exhaust 8.001-8.0213 mm 0.3150-0.3158 in
  Valve Guide Bore - Intake 8.001-8.0213 mm 0.3150-0.3158 in
Exhaust Manifold
  Surface Flatness 0.5 mm 0.02 in
Lubrication System
  Oil Capacity - with Filter 4.3L 4.5 qts
  Oil Capacity - without Filter 3.76L 4 qts
  Oil Pressure- 1850 RPM 414 kPa 60 psi
Oil Pump
  Gear Pocket - Depth 11.71-11.75 mm 0.461-0.4625 in
  Gear Pocket - Diameter 89.10-89.20 mm 3.508-3.512 in
  Inner Gear Tip Clearance 0.152 mm 0.006 in
  Relief Valve-to-Bore Clearance 0.038-0.076 mm 0.0015-0.003 in
Piston Ring End Gap
  First Compression Ring 0.25-0.46 mm 0.010-0.018 in
  Second Compression Ring 0.58-0.84 mm 0.023-0.033 in
  Oil Control Ring 0.254-0.762 mm 0.010-0.030 in
Piston Ring to Groove Clearance
  First Compression Ring 0.033-0.079 mm 0.0013-0.0031 in
  Second Compression Ring 0.033-0.079 mm 0.0013-0.0031 in
  Oil Control Ring 0.023-0.201 mm 0.0009-0.0079 in
Piston Ring Thickness
  First Compression Ring 1.176-1.197 mm 0.0463-0.0471 in
  Second Compression Ring 1.1476-1.497 mm 0.0581-0.0589 in
  Oil Control Ring 1.854-2.007 mm 0.073-0.079 in
Pistons and Pins - Piston
  Piston Diameter - Production - S/C 96.489-96.528 mm 3.7988-3.8003 in
  Piston Diameter - Production - Non S/C 96.482-96.497 mm 3.7985-3.7991 in
  Piston Diameter - Service Limit - Minimum - S/C 96.434 mm 3.7966 in
  Piston Diameter - Service Limit - Minimum - Non S/C 96.442 mm 3.7969 in
  Piston Pin Bore Diameter - S/C 23.0065-23.0105 mm 0.9058-0.9059 in
  Piston Pin Bore Diameter - Non S/C 22.0060-22.0110 mm 0.8664-0.8666 in
  Piston to Bore Clearance - New - VIN K 0.010-0.051 mm 0.0004-0.0020 in
  Piston to Bore Clearance - Used - VIN K 0.050-0.091 mm 0.0020-0.0036 in
  Piston to Bore Clearance - New - VIN 1 -0.0207-0.0437 mm -0.0008-0.0018 in
  Piston to Bore Clearance - Used VIN 1 0.0193-0.0997 mm 0.0008-0.0039 in
Pistons and Pins - Pin
  Piston Pin Clearance to Connecting Rod Bore - Press Fit-VIN K 0.0066-0.0217 mm 0.0003-0.0009 in
  Piston Pin Clearance to Piston Pin Bore - VIN K 0.0020-0.0130 mm 0.00008-0.00051 in
  Piston Pin Diameter - VIN K 21.9950-22.000 mm 0.8659-0.8661 in
  Piston Pin Clearance to Connecting Rod Bore - Press Fit - VIN 1 0.0073-0.0225 mm 0.00029-0.00089 in
  Piston Pin Clearance to Piston Pin Bore - VIN 1 0.0065-0.0155 mm 0.00061-0.00026 in
  Piston Pin Diameter - VIN 1 22.995-23.000 mm 0.90531-0.90551 in
Valves
  Valve Face Angle 46 degrees
  Valve Face Runout 0.0508 mm 0.002 in
  Valve Head Diameter - Intake 46.37-46.63 mm 1.826-1.836 in
  Valve Head Diameter - Exhaust 38.481-38.735 mm 1.515-1.525 in
  Valve Length 119.464-119.972 mm 4.7033-4.7233 in
  Valve Seat Angle 45 degrees
  Valve Seat Runout 0.050 mm 0.002 in
  Valve Seat Width - Intake 1.53-2.03 mm 0.060-0.080-in
  Valve Seat Width - Exhaust 2.29-2.79 mm 0.090-0.110 in
  Valve Stem Diameter 7.948-7.965 mm 0.3129-0.3136 in
  Valve Stem-to-Guide Clearance - Intake 0.031-0.071 mm 0.0012-0.0028 in
  Valve Stem-to-Guide Clearance - Exhaust 0.036-0.074 mm 0.0014-0.0029 in
Valve Lifters/Push Rods
  Push Rod Length - Intake, Yellow 178.13 mm 7.013 in
  Push Rod Length - Exhaust, Green 178.13 mm 7.013 in
  Valve Lifter Diameter 21.387-21.405 mm 0.842-0.843 in
Valve Rocker Arms
  Valve Rocker Arm Ratio 1.66:1
Valve Springs
  Valve Spring Free Length 49.78 mm 1.960 in
  Valve Spring Installed Height 42.93-44.45 mm 1.690-1.750 in
  Valve Spring Load - Closed 334 N 43.69 mm 75 lb 1.72 in
  Valve Spring Load - Open 1014 N 32.4 mm 228 lb 1.277 in
  Valve Spring Total Munber of Coils 6.6
RENDER: 1.0x

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