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(11) Install the timing case cover with a replace- ment oil seal (Fig. 65). Refer to Timing Case Cover (12) Install the vibration damper (Fig. 65). (13) Install the hydraulic valve tappets. numbers facing up. (15) Install the cylinder head and head bolts (Refer to cylinder head R&I in this section for torque (16) Install the push rods. assemblies. Tighten each of the capscrews for each (18) Install the engine cylinder head cover. Group 7, Cooling System for the proper procedure). NOTE: During installation, lubricate the hydraulic (20) Install the radiator, connect the hoses and fill the cooling system to the specified level (refer to (21) Check the ignition timing and adjust as nec- essary. (22) Install the grille and bumper, if removed. CAMSHAFT BEARINGS REMOVAL The camshaft rotates within four steel-shelled, bab- bitt-lined bearings that are pressed into the cylinder (1) Remove the camshaft. Refer to Camshaft in this section for procedure. NOTE: It is not advisable to attempt to replace cam- (2) Using Special tool, remove the camshaft bear- ings. INSTALLATION (1) Inspect the camshaft bearing journals for uneven wear pattern or finish. (2) Inspect the camshaft lobes and distributor gear for wear. Fig. 64 Crankshaft / Camshaft Sprocket Timing Mark Alignment 1 – CAMSHAFT SPROCKET Fig. 65 Timing Case Cover Components 1 – TIMING CASE COVER 9 - 104 4.0L ENGINE XJ REMOVAL AND INSTALLATION (Continued) |