Thrust bearing is located on No. 5 (rear) main bearing. Replace thrust bearing if crankshaft end play is not within specification. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS table under ENGINE SPECIFICATIONS.
1. Ensure main bearing caps are marked or location and direction of installation before removing from cylinder block. Ensure connecting rod journals, crankshaft main bearing journal diameter, taper and out-of-round are within specification. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS table under ENGINE … Read More »
1. Ensure connecting rod and connecting rod cap are marked with corresponding cylinder number before removing. 2. Use Plastigage to check rod bearing clearance. Apply light coat of engine oil to connecting rod bolt threads before tightening nuts to specification. See TORQUE SPECIFICATIONS. 3. Ensure oil clearance and side play are within… Read More »
1. Ring end gap should be measured with piston ring positioned in cylinder bore at area where no piston ring wear exists. Ensure ring end gap is within specification. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS.… Read More »
1. Measure piston diameter 1.68″ (42.7 mm) below lower land of oil ring at 90 degree angle to piston pin. Replace piston if piston diameter is not within specification. See PISTONS, PINS & RINGS table under ENGINE SPECIFICATIONS. 2.… Read More »
1. Ensure connecting rod and connecting rod cap are marked with corresponding cylinder number before removing. If removing piston from connecting rod, remove snap rings from piston. Tap piston pin from piston. 2. Ensure crankpin bore diameter, out-of-round and taper are within specification. See CONNECTING ROD table under ENGINE… Read More »
1. Ensure roller rotates smoothly and without excessive play. Measure valve lifter outside diameter and valve lifter bore diameter in cylinder block to determine oil clearance. Replace valve lifter if oil clearance is not within specification. See VALVE LIFTERS table under ENGINE … Read More »
For disassembly and reassembly of rocker arm assembly, see ROCKER ARM ASSEMBLY & PUSH ROD under REMOVAL & INSTALLATION.
1. Ensure valve stem diameter and valve margin are within specification. See VALVES & VALVE SPRINGS table under ENGINE SPECIFICATIONS. CAUTION: DO NOT grind more than .010″ (.25 mm) from tip of valve stem when resurfacing tip of valve stem. 2. Resurface tip of valve stem if necessary. DO… Read More »
Check valve seat width and runout. See Fig. 133 and Fig. 134 . Grind valve seat if not within specification. See CYLINDER HEAD table under ENGINE SPECIFICATIONS. Ensure valve spring installed height is correct after grinding valve seats. See VALVE SPRINGS.