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STANDARD PROCEDURE - CAMSHAFT (1) Oil camshaft journals and install camshaft WITHOUT cam follower assemblies. Install rear cam (2) Using a suitable tool, move camshaft as far rearward as it will go. (3) Zero dial indicator (Fig. 18). specification, (Refer to 9 - ENGINE - SPECIFICA- (6) If end play is excessive, check cylinder head and camshaft for wear; replace as necessary. REMOVAL (1) Remove cylinder head cover. (Refer to 9 - ENGINE/CYLINDER HEAD/CYLINDER HEAD COVER(S) - REMOVAL) (2) Remove camshaft position sensor and camshaft target magnet. (Refer to 8 - ELECTRICAL/IGNI- (3) Remove timing belt. (Refer to 9 - ENGINE/ VALVE TIMING/TIMING BELT/CHAIN AND SPROCKETS - REMOVAL) (4) Remove camshaft sprockets and timing belt rear cover. (Refer to 9 - ENGINE/VALVE TIMING/ (5) Bearing caps are identified for location. Remove the outside bearing caps first (Fig. 19). (6) Loosen the camshaft bearing cap attaching fasteners in sequence shown (Fig. 20) one camshaft CAUTION: Camshafts are not interchangeable. The (7) Identify the camshafts before removing from the head. The camshafts are not interchangeable. (8) Remove camshafts from cylinder head. NOTE: If removing rocker arms, identify for reinstal- CLEANING Clean camshaft with a suitable solvent. INSPECTION (1) Inspect camshaft bearing journals for damage and binding (Fig. 21). If journals are binding, check (2) Check the cam lobe and bearing surfaces for abnormal wear and damage. Replace camshaft if NOTE: If camshaft is replaced due to lobe wear or (3) Measure the lobe actual wear (unworn area - wear zone = actual wear) (Fig. 21) and replace cam- Fig. 18 Camshaft End Play - Typical Fig. 19 Camshaft Bearing Cap Identification Fig. 20 Camshaft Bearing Cap - Removal 1 - REMOVE OUTSIDE BEARING CAPS FIRST TJ ENGINE 2.4L 9 - 27 CAMSHAFT(S) (Continued) |