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(21) Remove the cylinder head retaining bolts. the gasket. CAUTION: Do not lay the cylinder head on its gas- INSTALLATION NOTE: The cylinder head bolts are tightened using Necking can be checked by holding a straight edge against the threads. If all the threads do not contact CAUTION: When cleaning cylinder head and cylin- (1) Clean the cylinder head and cylinder block mating surfaces (Fig. 62). (2) Position the new cylinder head gasket on the locating dowels. CAUTION: When installing cylinder head, use care (3) Position the cylinder head onto the cylinder block. Make sure the cylinder head seats fully over NOTE: The four smaller cylinder head mounting (4) Lubricate the cylinder head bolt threads with clean engine oil and install the ten M11 bolts. (5) Coat the four M8 cylinder head bolts with Mopar t Lock and Seal Adhesive then install the bolts. NOTE: The cylinder head bolts are tightened using (6) Tighten the bolts in sequence (Fig. 63) using the following steps and torque values: • Step 1: Tighten bolts 1–10, 20 N·m (15 ft. lbs.). • Step 2: Tighten bolts 1–10, 47 N·m (35 ft. lbs.). Tighten bolts 11–14, 25 N·m (18 ft. lbs.). • Step 3: Tighten bolts 1–10, 90 degrees. Tighten bolts 11–14, 30 N·m (22 ft. lbs.). (7) Position the secondary chain onto the camshaft drive gear, making sure one marked chain link is on (8) Install the camshaft drive gear retaining bolt. chain tensioner. (12) Remove Special Tool 8515. Fig. 61 Checking Cylinder Head Bolts for Stretching (Necking) 1 – STRETCHED BOLT Fig. 62 Proper Tool Usage for Surface Preparation 1 – PLASTIC/WOOD SCRAPER DN 4.7L ENGINE 9 - 43 REMOVAL AND INSTALLATION (Continued) |