Jeep Engines - Oljeep

360 AMC V-8 (CAMSHAFT AND VALVE GEAR) 397Camshaft and Valve GearCAMSHAFTThe 360 AMC V-8 uses a cast iron camshaft with intakeand exhaust cam lobe lifts of 6.604-6.858 mm (0.260-0.270"), and intake and exhaust durations of 263.5'.To advance or retard camshaft centerline, the 360 AMC V-8 uses offset keys. For more information on centerlining,refer to the 'Camshaft and Valve Gear' section of Chapter4, 4.0L Power Tech In-Line 6.For more camshaft specifications, refer to 360 AMC V-8Engine Spec$cations, 'Engine Assembly' section of thischapter.Degree WheelDurable Mopar Performance Parts aluminum plate, 0"-90-180"-90-0" degree wheel for centerlining camshafts.Features step-by-step installation instructions printed onback side.P4452990Degree wheel.Cam Lobe Lift Measurement1.2.3.4.5.6.7.8.Remove the cylinder head cover and gasket.Remove the bridge and pivot assemblies and rockerarms. Alternately loosen the capscrews one turn at atime to avoid damaging the bridge.Remove the spark plugs.Use a piece of rubber tubing to secure the dial indicatoron the end of the pushrod (Figure 7-20).Rotate the crankshaft until the cam lobe base circle(pushrod down) is under the valve tappet.Set the dial indicator to zero.Rotate the crankshaft until the point of maximumpushrod upward movement occurs.Note the travel on the dial indicator. Correct lift is6.604-6.858 mm (0.260-0.270"). The rocker arm ratiois 1.6: 1. Multiply the cam lift by 1.6 to determine thevalve lift.RemovalFigure 7 - 20Warning! If the engine has been recently operated, use careto prevent scalding by hot coolant. The system is pressurized.1.2.3.4.5.6.7.8.9.Drain the radiator and cylinder block. If the coolant isreusable, drain it into a clean container.Remove the radiator assembly.Remove the air conditioning condenser and receiverassembly as a charged unit.Remove the cylinder head covers and gaskets.Remove the bridge and pivot assemblies and rockerarms. Alternately loosen the capscrews one turn at atime to avoid damaging the bridge.Remove the pushrods. Retain the pushrods, rockerarms, bridge and pivot assemblies and tappets in thesame order as removed.Remove the intake manifold assembly.Remove the tappets.Remove the drive belts.10. Remove the fan and hub assembly.1 1. Remove the distributor,12. Remove the damper pulley and vibration damper.13. Remove the timing case cover.14. Install the vibration damper bolt with two or more flatwashers to provide means of rotating the crankshaft.15. Rotate the crankshaft until the timing mark on thecrankshaft sprocket is closest to and on the centerlinewith the timing mark on the camshaft sprocket.