Operation CHARM: Car repair manuals for everyone.

Unit Repair

General Data Engine Type 90° V6
Displacement 231 cu inch
Liter (VIN) 3.8 L (K), (1)
RPO L36, L67
Bore 3.8 inch
Stroke 3.4 inch
Compression Ratio (VIN K) 9.4:1
Compression Ratio (VIN 1) 8.5:1
Firing Order 1-6-5-4-3-2
Lubrication System Oil Capacity with Oil Filter Change 4.5 qt.
Oil Capacity without Oil Filter Change 4 qt.
Oil Pressure @ Operating Temperature (1850 RPM)
Using 10W-30 Oil
60 psi min
Oil Filter Type Throw Away Element and Can
Gear Pocket Depth 0.461 - 0.4625 inch
Gear Pocket Diameter 3.508 - 3.512 inch
Inner Gear Tip Clearance 0.006 inch
Outer Gear Diameter Clearance 0.008 - 0.015 inch
End Clearance 0.001 - 0.0035 inch
Valve-to-Bore Clearance 0.0015 - 0.003 inch
Type of Lubrication Main Bearings Pressure
Connecting Rods Pressure
Piston Pins Splash
Balance Shaft Bearing - Front Splash
Balance Shaft Bushing - Rear Pressure
Camshaft Bearings Pressure
Timing Chain Splash
Cylinder Walls Splash
Oil Pump Type Gerotor
Oil Pressure Sending Unit Electrical
Oil Intake Stationary
Oil Filter System Full Flow
Cylinder Bore Diameter 3.8 inch
Out-Of-Round Maximum 0.001 inch
Taper 0.001 inch
Piston (VIN K) Used Piston Clearance (41 mm from Top of Piston) 0.0020 - 0.0036 inch
New Piston Clearance (41 mm from Top of Piston) 0.0004 - 0.0020 inch
Piston (VIN 1) Used Piston Clearance (41 mm from Top of Piston) 0.0008 - 0.0039 inch
New Piston Clearance (41 mm from Top of Piston) 0.0008 - 0.0017 inch
Piston Ring Groove Depth Top Compression 0.158 - 0.163 inch
2nd Compression 0.0166 - 0.171 inch
Oil Control 0.150 - 0.155 inch
Piston Ring End Gap Top Compression 0.010 - 0.018 inch
2nd Compression 0.023 - 0.033 inch
Oil Control 0.010 - 0.030 inch
Piston Ring Side Clearance Top Compression 0.0013 - 0.0031 inch
2nd Compression 0.0013 - 0.0031 inch
Oil Control 0.0009 - 0.0079 inch
Piston Ring Width Top Compression 0.0463 - 0.0471 inch
2nd Compression 0.0581 - 0.0589 inch
Oil Control 0.073 - 0.079 inch
Piston Pin (VIN K) Diameter 0.8659 - 0.8661 inch
Clearance in Piston 0.00008 - 0.00051 inch
Fit-In-Rod (Clearance) 0.0003 - 0.0009 inch
Piston Pin (VIN 1) Diameter 0.90531 - 0.90551 inch
Clearance in Piston 0.00061 - 0.00026 inch
Fit-In-Rod (Clearance) 0.00029 - 0.00089 inch
Crankshaft Main Journal Diameter - All 2.4988 - 2.4998 inch
Rod Journal Diameter - All 2.2487 - 2.2499 inch
Main Journal Taper - Maximum 0.00035 inch
Rod Journal Taper - Maximum 0.00035 inch
Main Journal Out-of-Round - Maximum 0.00025 inch
Rod Journal Out-of-Round - Maximum 0.00020 inch
Main Bearing to Journal Clearance 1 0.0007 - 0.0016 inch
Main Bearing to Journal Clearance 2, 3 and 4 0.0009 - 0.0018 inch
Rod Bearing Clearance 0.0005 - 0.0026 inch
Crankshaft End Play 0.003 - 0.011 inch
Connecting Rod Rod Side Clearance 0.004 - 0.0200 inch
Connecting Rod Large End Bore ID 2.37378 - 2.3745 inch
Camshaft Journal Diameter 1.8462 - 1.8448 inch
Bearing Inside Diameter 1 and 4 1.8428 - 1.8492 inch
Bearing Inside Diameter 2 and 3 1.8481 - 1.8495 inch
Bearing-to-Journal Clearance 0.0016 - 0.0047 inch
Intake Maximum Lobe Lift 0.258 inch
Exhaust Maximum Lobe Lift 0.258 inch
Balance Shaft End Play 0.0 - 0.0067 inch
Rear Journal Diameter 1.4994 - 1.5002 inch
Radial Play-Front, Bearing Clearance 0.0 - 0.0010 inch
Rear Bearing to Journal Clearance 0.0005 - 0.0043 inch
Drive Gear Lash 0.002 - 0.0049 inch
Bearing Bore Diameter - Front 2.0462 - 2.0472 inch
Bearing Bore Diameter - Rear, In Block 1.8735 - 1.8745 inch
Bearing Inside Diameter - Rear 1.5007 - 1.5037 inch
Valve System Lifter Hydraulic Roller
Rocker Arm Ratio 1.66:1
Face Angle 46 °
Seat Angle 45 °
Minimum Margin 0.025 inch
Seat Runout - Maximum 0.002 inch
Seat Width - Intake 0.060 - 0.080 inch
Seat Width - Exhaust 0.090 - 0.110 inch
Stem Height - All 1.93 - 1.975 inch
Stem Clearance - Intake 0.0012 - 0.0028 inch
Stem Clearance - Exhaust 0.0014 - 0.0029 inch
Valve Spring Free Length 1.960 inch
Load - Closed 75 lb. @ 1.72 inch
Load - Open 228 lb. @ 1.277 inch
Installed Height 1.690 - 1.750 inch
Approximate Number of Active Coils 4.48
Approximate Number of Total Coils 6.60
Flywheel Runout - Maximum 0.015 inch