Jeep Engines - Oljeep

4.2L IN-LINE 6 (ENGINE ASSEMBLY) 337Cylinder BlockDeck HeightDeck Clearance (below deck)Cylinder Bore Diameter (standard)Maximum TaperMaximum Out-of-RoundTappet Bore DiameterCylinder Block FlatnessMain Bearing Bore Diameter240.97-241.12 mm 9.487-9.493 in.0.376 mni 0.0148 in.95.253-95.334 mm 3.7501-3.7533 in.0.025 mni0.001 in.0.025 mni 0.001 in.23.000-23.025 mm 0.9055-0.9065 in..03 per 25 mm.001 per 1 in..05 per 152 mm.002 per 6 in.68.35-68.38 mm 2.691-2.692 in.Cylinder HoodCombustion Chamber VolumeValve ArrangementValve Guide ID (Integral)Valve Stem-to-Guide ClearanceIntake Valve Seat AngleExhaust Valve Seat AngleValve Seat WidthValve Seat RunoutCylinder Head Flatness64.45-67.45 ccEl-IE-IE-El-El-IE9.487-9.512 mm0.03-0.08 mm30°44O30’1.02-1.52 mm0.064 mm.03 per 25 mm.05 per lti2 mm0.3735-0.3745 in..001-.003 in..040-.060 in..0025 in..001 per 1 in..002 per 6 in.Oil PressureAt Idle Speed (600 rpm) .....................At 1600 + rpm .............................Oil Pressure Relief ...........................90 kPa255-517kPa,517 kPo13 psi37-75 psi75 psiOil PumpGear-to-Body Clearance (radial). ................0.051-0.102 mmPreferred ................................ .0.051 mmGear End Clearance - Plastigauge ............. .0.051-0.152 mmPreferred ................................ .0.051 mmGear End Clearance - Feeler Gauge. ............0.1016-0.2032 mmPreferred ................................ .0.1778 mni0.002-0.004 in.0.002 in.0.002-0.006 in.0.002 in.0.004-0.008 in.0.007 in.Rocker Arms. Push Rods and TaDDdsRocker Arm RatioPush Rod lengthPush Rod DiameterHydraulic Tappet DiameterTappet-to-Bare Clearance1.6:1244.856-245.364 mm7.92-8.00 mm22.962-22.974 mm0.03-0.05 mm9.640-9.660 in.0.312-0.315 in.0.904-0.9045 in.0.001-0.0025 in.J8909-173