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Engine Mechanical Specifications

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ENGINE MECHANICAL SPECIFICATIONS

Application Specification
Metric English
General Data
  Engine Type V6
  RPO Code L35/LU3
  VIN Code W/X
  Displacement 4.3 L 262 CID
  Bore 101.60 mm 4.012 in
  Stroke 88.39 mm 3.480 in
  Compression Ratio 9.2:1
  Firing Order 1-6-5-4-3-2
  Spark Plug Gap 1.52 mm 0.060 in
  Oil Pressure - Minimum - at Normal Operating Temperature 42 kPa at 1,000 RPM 6 psig at 1,000 RPM
    125 kPa at 2,000 RPM 18 psig at 2,000 RPM
    166 kPa at 4,000 RPM 24 psig at 4,000 RPM
Balance Shaft
  Rear Bearing Journal Clearance 0.050-0.088 mm 0.0020-0.0035 in
  Rear Bearing Journal Diameter 38.085-38.100 mm 1.4994-1.500 in
Camshaft
  End Play 0.0254-0.2286 mm 0.0010-0.0090 in
  Journal Diameter 47.440-47.490 mm 1.8677-1.8696 in
  Journal Diameter Out-of-Round 0.025 mm - Maximum 0.0010 in - Maximum
  Lobe Lift - Exhaust 7.20-7.30 mm 0.283-0.287 in
  Lobe Lift - Intake 6.97-7.07 mm 0.274-0.278 in
  Runout 0.065 mm 0.0026 in
Connecting Rod
  Connecting Rod Bearing Clearance - Production 0.038-0.078 mm 0.0015-0.0031 in
  Connecting Rod Bearing Clearance - Service 0.025-0.063 mm 0.0010-0.0025 in
  Connecting Rod Journal Diameter 57.116-57.148 mm 2.2487-2.2497 in
  Connecting Rod Journal Out-of-Round - Production 0.007 mm - Maximum 0.0002 in - Maximum
  Connecting Rod Journal Out-of-Round - Service 0.025 mm - Maximum 0.0010 in - Maximum
  Connecting Rod Journal Taper - Production 0.00508 mm - Maximum 0.00030 in - Maximum
  Connecting Rod Journal Taper - Service 0.025 mm - Maximum 0.0010 in - Maximum
  Connecting Rod Side Clearance 0.15-0.44 mm 0.006-0.017 in
Crankshaft
  Crankshaft Bearing Clearance - Journal #1-Production 0.02-0.508 mm 0.0008-0.0020 in
  Crankshaft Bearing Clearance - Journal #2, #3, and #4-Production 0.028-0.058 mm 0.0011-0.0023 in
  Crankshaft Bearing Clearance - Journal #1-Service 0.0254-0.05 mm 0.0010-0.0020 in
  Crankshaft Bearing Clearance - Journal #2, #3, and #4-Service 0.025-0.063 mm 0.0010-0.0250 in
  Crankshaft End Play 0.050-0.20 mm 0.002-0.008 in
  Crankshaft Journal Diameter - Journal #1 62.199-62.217 mm 2.4488-2.4495 in
  Crankshaft Journal Diameter - Journal #2 and #3 62.191-62.215 mm 2.4485-2.4494 in
  Crankshaft Journal Diameter - Journal #4 62.179-62.203 mm 2.4480-2.4489 in
  Crankshaft Journal Out-of-Round - Production 0.005 mm - Maximum 0.0002 in - Maximum
  Crankshaft Journal Out-of-Round - Service 0.025 mm - Maximum 0.0010 in - Maximum
  Crankshaft Journal Taper - Production 0.007 mm - Maximum 0.0003 in - Maximum
  Crankshaft Runout 0.025 mm - Maximum 0.0010 in - Maximum
Cylinder Bore
  Diameter 101.618-101.643 mm 4.0007-4.0017 in
  Out-of-Round - Production 0.0127 mm - Maximum 0.00050 in - Maximum
  Out-of-Round - Service 0.05 mm - Maximum 0.002 in - Maximum
  Taper - Production Relief Side 0.025 mm - Maximum 0.0010 in - Maximum
  Taper - Production Thrust Side 0.012 mm - Maximum 0.0005 in - Maximum
  Taper - Service 0.025 mm - Maximum 0.0010 in - Maximum
Cylinder Head
  Surface Flatness 0.10 mm - Maximum 0.004 in - Maximum
Exhaust Manifold
  Surface Flatness - Flange to Flange 0.25 mm - Maximum 0.010 in - Maximum
  Surface Flatness - Individual Flange 0.05 mm - Maximum 0.002 in - Maximum
Intake Manifold
  Surface Flatness 0.10 mm - Maximum 0.004 in - Maximum
Oil Pan
  Oil Pan Alignment at Rear of Engine Block 0.3 mm - Maximum 0.011 in - Maximum
Piston
  Piston Bore Clearance - Production 0.018-0.061 mm 0.0007-0.0024 in
  Piston Bore Clearance - Service 0.075 mm - Maximum 0.0029 in - Maximum
Piston Pin
  Clearance in Piston - Production 0.013-0.023 mm 0.0005-0.0009 in
  Clearance in Piston - Service 0.025 mm - Maximum 0.0010 in - Maximum
  Diameter 23.545-23.548 mm 0.9270-0.9271 in
  Fit in Connecting Rod 0.012-0.048 mm - Interference 0.0005-0.0019 in - Interference
Piston Rings - End Gap Measured in Cylinder Bore
  Piston Compression Ring Gap - Production-Top Groove 0.25-0.40 mm 0.010-0.016 in
  Piston Compression Ring Gap - Production-2nd Groove 0.38-0.58 mm 0.015-0.023 in
  Piston Compression Ring Gap - Service-Top Groove 0.25-0.50 mm 0.010-0.020 in
  Piston Compression Ring Gap - Service-2nd Groove 0.38-0.80 mm 0.015-0.031 in
  Piston Compression Ring Groove Clearance - Production-Top Groove 0.030-0.070 mm 0.0012-0.0027 in
  Piston Compression Ring Groove Clearance - Production-2nd Groove 0.040-0.080 mm 0.0015-0.0031 in
  Piston Compression Ring Groove Clearance - Service 0.030-0.085 mm 0.0012-0.0033 in
  Piston Oil Ring Gap - Production 0.25-0.76 mm 0.010-0.029 in
  Piston Oil Ring Gap - Service 0.005-0.090 mm 0.0002-0.0035 in
  Piston Oil Ring Groove Clearance - Production 0.046-0.196 mm 0.0018-0.0077 in
  Piston Oil Ring Groove Clearance - Service 0.046-0.200 mm 0.0018-0.0079 in
Valve System
  Valve Face Angle 45 degrees
  Valve Head Edge Margin 0.79 mm - Minimum 0.031 in - Minimum
  Valve Lash Net Lash-No Adjustment
  Valve Lift - Exhaust 10.879 mm 0.4280 in
  Valve Lift - Intake 10.527 mm 0.4140 in
  Valve Lifter Hydraulic Roller Type
  Valve Rocker Arm Roller Pivot Type
  Valve Rocker Arm Ratio 1.5:1
  Valve Seat Angle 46 degrees
  Valve Seat Runout 0.05 mm - Maximum 0.002 in - Maximum
  Valve Seat Width - Exhaust 1.651-2.489 mm 0.065-0.098 in
  Valve Seat Width - Intake 1.016-1.651 mm 0.040-0.065 in
  Valve Spring Free Length 51.3 mm 2.02 in
  Valve Spring Installed Height - Exhaust 42.92-43.43 mm 1.670-1.700 in
  Valve Spring Installed Height - Intake 42.92-43.43 mm 1.670-1.700 in
  Valve Spring Pressure - Closed 338-374 N at 43.2 mm 76-84 lb at 1.70 in
  Valve Spring Pressure - Open 832-903 N at 32.3 mm 187-203 lb at 1.27 in
  Valve Stem Clearance - Exhaust-Production 0.025-0.069 mm 0.0010-0.0027 in
  Valve Stem Clearance - Exhaust-Service 0.025-0.094 mm 0.0010-0.0037 in
  Valve Stem Clearance - Intake-Production 0.025-0.069 mm 0.0010-0.0027 in
  Valve Stem Clearance - Intake-Service 0.025-0.094 mm 0.0010-0.0037 in
  Valve Stem Oil Seal Installed Height - Measured from the Top of the Large Diameter Valve Guide Bevel to the Bottom of the Valve Stem Oil Seal 1-2 mm 0.03937-0.07874 in
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