Removal
- Disconnect negative battery cable. Drain cooling system. Support engine from above with Engine Support Fixture (J-28467) and Adapter Leg (J-36462). Remove engine mount assembly. Remove engine mount bracket support. Remove serpentine drive belt. See «DRIVE BELT & TENSIONER ASSEMBLY»(ref-54765-S35051028172004020600000) .
- Remove power steering pump (leave hoses connected). Loosen top 2 A/C compressor bolts. Raise and support vehicle. Remove right front wheel and inner splash shield. Remove flexplate/flywheel cover. Remove bolt and washer securing crankshaft balancer. Use a puller to remove crankshaft balancer.
- Remove serpentine drive belt tensioner. See «DRIVE BELT & TENSIONER ASSEMBLY»(ref-54765-S35051028172004020600000) . Remove engine mount strut between top of radiator panel and left side of engine. Disconnect electrical connectors from ABS front wheel speed sensors (if equipped) and suspension supports. Separate right ball joint stud from steering knuckle. Disconnect stabilizer shaft from right control arm and right suspension support. Remove bolts, then remove right suspension support and control arm as an assembly.
- Remove bolts securing A/C compressor to oil pan. Remove oil filter and adapter. Remove engine mount strut bracket. Remove brace between engine and transaxle. Drain crankcase. Remove starter. Remove oil pan. See «OIL PAN»(ref-54765-S02832888062001011700000) . Remove crankshaft sensor. Remove lower bolts from front cover. Lower vehicle. Remove coolant by-pass pipe. Disconnect radiator hose from coolant outlet housing. Remove upper bolts and front cover. Remove oil seal from front cover.
- Apply RTV sealant to sealing surface of front cover. Install NEW front cover oil seal. See «FRONT COVER OIL SEAL»(ref-54765-S30149269272001011700000) . Apply RTV sealant to keyway in crankshaft and crankshaft damper.
- Install crankshaft damper using Damper Installer (J-29113). Ensure damper installer threads are inserted at least .20" (5.1 mm) into crankshaft. To complete installation, reverse removal procedure.
Remove serpentine drive belt. See DRIVE BELT & TENSIONER ASSEMBLY . Raise and support vehicle. Remove right front wheel and inner fender splash shield. Remove flexplate/flywheel cover. Prevent crankshaft from turning, and remove crankshaft balancer bolt. Remove crankshaft balancer with a puller. Remove crankshaft balancer key. Pry seal out of front cover with a large screwdriver.
Lubricate seal with engine oil. Using Seal Installer (J-35468), install seal with open end toward engine. To complete installation, reverse removal procedure.
Note. If camshaft sprocket does not come off easily, lightly strike lower edge of sprocket with a plastic mallet.
Disconnect negative battery cable. Remove front cover. See FRONT COVER . Place No.1 piston at top dead center (No. 4 in firing position). Align mark on camshaft sprocket with timing mark on bottom of timing chain dampener. Remove camshaft sprocket bolt. Remove camshaft sprocket and timing chain. Remove crankshaft sprocket with Crankshaft Sprocket Remover (J-5825-A).
- Install crankshaft sprocket (if removed) using Installer (J-38612). If camshaft or crankshaft was rotated during removal of chain or sprockets, rotate camshaft and/or crankshaft as necessary to align timing marks. (Scheme 4)
- Install timing chain onto camshaft sprocket. Hold camshaft sprocket vertically with chain hanging down. Install timing chain onto crankshaft sprocket, then camshaft sprocket onto camshaft. Install and tighten camshaft sprocket bolt to specification. See «TORQUE SPECIFICATIONS»(ref-54765-S42621572542001011700000). Lubricate timing chain with engine oil. To complete installation, reverse removal procedure.
Scheme 4
Disconnect negative battery cable. Remove lower intake manifold. See INTAKE MANIFOLD (LOWER) . Remove rocker arms and push rods. Remove bolts and lifter guide. Remove lifters. Mark component locations for installation reference.
If installing old lifters, lubricate lifters and bores with engine oil. If replacing lifters, lubricate lifter and bores with Prelube (1052365). Install lifters. To complete installation, reverse removal procedure. Tighten nuts and bolts to specification. See TORQUE SPECIFICATIONS .
- Disconnect negative battery cable. Remove engine. See «ENGINE»(ref-54765-S27967903472001011700000) . Remove lower intake manifold. See «INTAKE MANIFOLD (LOWER)»(ref-54765-S03390897492001011700000) . Remove rocker arms and push rods. Remove bolts and lifter guide. Remove lifters. Mark component locations for installation reference. Remove front cover. See «FRONT COVER»(ref-54765-S25048227272001011700000) .
- Remove timing chain and camshaft sprocket. See «TIMING CHAIN»(ref-54765-S29157146352001011700000) . Remove oil pump drive assembly from top rear of cylinder block (held in place with a bolt and clamp like a distributor). Remove camshaft thrust plate. Remove camshaft. If necessary, remove camshaft bearings using Remover/Installer (J-33049).
| CAUTION | If camshaft bearings were removed, ensure oil holes are aligned during installation. If replacing camshaft, coat lobes with Prelube (1052365) |
Lubricate camshaft bearings and lobes with engine oil. Install camshaft. To complete installation, reverse removal procedure. Ensure timing marks are aligned. (Scheme 4) Tighten nuts and bolts to specification. See TORQUE SPECIFICATIONS.
- Disconnect negative battery cable. Remove transmission. See «TRANSMISSION REMOVAL & INSTALLATION»(ref-54692) article in TRANSMISSION SERVICING.
- On M/T models, mark clutch pressure plate and flywheel for installation reference. Remove pressure plate, clutch disc and flywheel. On A/T models, remove flexplate and retainer.
- On all models, careful pry seal from housing (DO NOT damage sealing surfaces). Note direction of seal installation.
- Coat inner and outer seal surfaces with engine oil. Install seal on mandrel of Seal Installer (J-34686) until dust lip bottoms against seal installer collar. (Scheme 5)
- Install seal installer onto crankshaft, aligning dowel pin on seal installer with alignment hole in crankshaft flange. To install seal in seal bore, tighten seal installer handle until collar on seal installer is even with cylinder block.
- To complete installation, reverse removal procedure. Align reference marks on pressure plate and flywheel (M/T models). Tighten bolts to specification. See «TORQUE SPECIFICATIONS»(ref-54765-S42621572542001011700000).