Disassembly Special Tool(s) | Universal Flange Holding Wrench 205-072 (15-030A) | | Remover, Seal 303-112 (21-051) | | Remover, Crankshaft Seal 303-293 (21-143) | | Remover, Crankshaft Vibration Damper 303-338 (21-153B) | | Adapter for 303-338 303-338-02 (21-153A-02) | | Remover/Installer, Hose Clamp 303-397 (24-003) | | Mounting Bracket for 303-435 303-435-06 (21-031B) | | Mounting Plate for 303-435-06 303-435-11 (21-146C) | | Socket, Spark Plug 303-499 (21-202) | Disassembly All vehicles | -
Drain the engine oil. - Allow the oil to drain into a suitable container.
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NOTE:Inspect the oil pan drain plug seal for damage. Install a new drain plug and seal if required. Install the drain plug. | | -
CAUTION:Remove the right-hand exhaust manifold retaining nuts in the sequence shown. Remove the right-hand exhaust manifold. - Discard the gasket and the retaining nuts.
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Remove the intermediate drive shaft bracket. | | -
Install the mounting plate to the engine. | | -
Install the mounting bracket to the mounting plate. | | -
Mount the engine on the mounting stand. | | -
Disconnect the engine coolant temperature (ECT) sensor electrical connector. - Detach the wiring harness.
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Detach the intake manifold runner control (IMRC) cable from the throttle body. | | -
Remove the IMRC actuator and mounting bracket. - Cut the cable tie.
- Disconnect the IMRC electrical connector.
- Remove the retaining bolts.
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Disconnect the right-hand spark plug electrical connectors. | | -
Disconnect the left-hand spark plug electrical connectors. | Vehicles with exhaust gas recirculation (EGR) | -
Disconnect the differential pressure feedback EGR electrical connector. | | -
Disconnect the electronic vacuum regulator (EVR) solenoid valve electrical connector. | | -
Disconnect the EGR tube from the EGR valve. - Disconnect the hoses.
- Detach the tube fitting.
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Disconnect the vacuum hoses from the upper intake manifold, the EGR valve and the fuel pressure regulator. | | -
Disconnect the electronic vacuum regulator (EVR) hoses. - Remove the vacuum hose harness.
| All vehicles | -
Disconnect the positive crankcase ventilation (PCV) hose from the throttle body. | | -
Disconnect the throttle position (TP) sensor electrical connector. | | -
Disconnect the idle air control (IAC) valve electrical connector. | | -
CAUTION:Remove the upper intake manifold retaining bolts in the sequence shown. Remove the upper intake manifold. | | -
Disconnect the heated oxygen sensor (HO2S) electrical connector. | | -
Disconnect the oil pressure switch electrical connector. | | -
Disconnect the crankshaft position (CKP) sensor electrical connector. - Detach the wiring harness from the retaining stud.
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Disconnect the camshaft position (CMP) sensor electrical connector. - Detach the wiring harness from the stud.
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Detach the wiring harness in-line electrical connectors from the mounting bracket. | | -
Detach the wiring harness bracket from the right-hand valve cover (two nuts). | | -
Remove the electronic ignition (EI) coil. | | -
Disconnect the fuel injector electrical connectors. - Detach the wiring harness.
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CAUTION:Remove the lower intake manifold retaining bolts in the sequence shown. Remove the lower intake manifold. | | -
Remove the coolant distribution tube. | | -
Remove the oil level indicator and tube. | Vehicles with coolant pump belt tensioner | -
Remove the coolant pump belt. - Rotate the belt tensioner clockwise to release the tension from the coolant pump belt.
| Vehicles without coolant pump belt tensioner | -
Using a suitable knife, cut the coolant pump belt. - Discard the coolant pump belt.
| All vehicles | -
Remove the PCV valve and hoses. - Remove the retaining nut.
- Remove the PCV and hoses.
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Remove the coolant bypass assembly. | | -
Using the special tool, disconnect the coolant hoses from the coolant pump. | Vehicles with manual transaxle | -
Remove the clutch disc and pressure plate. For additional information, refer to: Clutch Disc and Pressure Plate (308-01A Clutch - Vehicles With: 5-Speed Manual Transmission (MTX-75), Removal and Installation). | | -
Remove the flywheel. - Remove the flywheel retaining bolts.
- Remove the adapter plate.
| Vehicles with automatic transaxle | -
Remove the flexplate. - Remove the flexplate retaining bolts.
- Remove the adapter plate.
| All vehicles | -
Using the special tool, remove the crankshaft rear seal. | | -
Remove the generator mount bracket. | | -
CAUTION:Remove the left-hand exhaust manifold retaining nuts in the sequence shown. Remove the left-hand exhaust manifold. - Discard the gasket and the retaining nuts.
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Remove the oil pressure switch. | | -
NOTE:Remove the oil pan retaining bolts and studs in the sequence shown. Remove the oil pan. | | -
Remove the engine wiring harness bracket from the right-hand valve cover. | | -
CAUTION:Remove the valve cover retaining bolts and nuts in the sequence shown. Remove the valve covers. | | -
Using the special tools, remove the camshaft pulley. | | -
CAUTION:Do not damage the camshaft seal surface. Using the special tool, remove the camshaft seal. | | -
CAUTION:Protect the camshaft surface when removing the seal retainer. Remove the camshaft seal retainer. | | -
Remove the power steering pump pulley. | | -
Remove the power steering pump and bracket (five bolts and six nuts). | | -
Using the special tool, remove the crankshaft pulley retaining bolt. - Discard the crankshaft pulley retaining bolt.
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Using the special tool, remove the crankshaft pulley. | | -
Remove the CMP and CKP position sensors. | | -
Using the special tool, remove the crankshaft front seal. | | -
NOTE:Remove the engine front cover retaining bolts and nuts in the sequence shown. Remove the engine front cover. | | -
Remove the ignition pulse wheel. | | -
NOTE:Do not tighten the bolt at this stage. Install the crankshaft pulley retaining bolt and washer. | | -
Using the special tool, remove the right-hand spark plugs. | | -
Using the special tool, remove the left-hand spark plugs. | | -
Rotate the crankshaft in a clockwise direction to position number one cylinder at top dead center (TDC) with the crankshaft keyway at the 11 o'clock position. - If the camshafts are not positioned as shown, rotate the crankshaft one complete revolution.
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Rotate the crankshaft in a clockwise direction to position the crankshaft keyway at the 3 o'clock position. - The right-hand camshafts will be in the neutral position.
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NOTE:Mark the position of all timing chain tensioner components to make sure they are assembled in their original positions. Remove the right-hand timing chain tensioner and timing chain tensioner arm. - Remove the bolts.
- Remove the timing chain tensioner.
- Remove the timing chain tensioner arm.
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Remove the right-hand timing chain. - Remove the right-hand timing chain guide.
- Remove the right-hand timing chain.
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CAUTION:The cylinder head and the camshaft bearing caps are numbered and marked for left-hand and right-hand cylinder heads. CAUTION:Remove camshaft bearing thrust caps No. 1R and 5R first. Do not loosen any other retaining bolts until the thrust caps are removed. NOTE:Camshaft bearing caps are dowelled to the cylinder head. If necessary, use a plastic mallet to loosen the caps. NOTE:Loosen the retaining bolts and bearing caps in the indicated sequence in several passes to allow the camshafts to gradually rise from the cylinder head. NOTE:If the cam followers and valve tappets are to be re-used, mark their position to make sure they are assembled in the original location. Remove the right-hand cylinder head camshafts. - Remove the cam followers.
- Remove the valve tappets.
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CAUTION:Remove the right-hand cylinder head bolts in the sequence shown in several passes. Remove the right-hand cylinder head. - Discard the cylinder head bolts, washers and gasket.
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Rotate the crankshaft in a clockwise direction approximately 600 degrees and position the crankshaft keyway at the 11 o'clock position. | | -
Remove the crankshaft pulley retaining bolt and washer. | | -
NOTE:Mark the position of all timing chain tensioner components to make sure they are assembled in their original positions. Remove the left-hand timing chain tensioner and timing chain tensioner arm. - Remove the bolts.
- Remove the timing chain tensioner.
- Remove the timing chain tensioner arm.
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Remove the left-hand timing chain. - Remove the left-hand timing chain guide.
- Remove the left-hand timing chain.
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CAUTION:The cylinder head and the camshaft bearing caps are numbered and marked for left-hand and right-hand cylinder heads. CAUTION:Remove camshaft bearing thrust caps No. 1L and 5L first. Do not loosen any other retaining bolts until the thrust caps are removed. NOTE:Loosen the retaining bolts and bearing caps in the sequence shown in several passes to allow the camshafts to gradually rise from the cylinder head. NOTE:Camshaft bearing caps are dowelled to the cylinder head. If necessary, use a plastic mallet to loosen the caps. NOTE:If the cam followers and valve tappets are to be re-used, mark their position to make sure they are assembled in the original location. Remove the left-hand camshafts. - Remove the cam followers.
- Remove the valve tappets.
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CAUTION:Remove the left-hand cylinder head bolts in the sequence shown in several passes. Remove the left-hand cylinder head. - Discard the cylinder head bolts, washers and gasket.
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Remove the power steering pump bracket. | | -
Remove the oil separator. | | -
Remove the oil pick-up pipe. - Remove the retaining nut.
- Remove the retaining bolts.
- Remove the oil pick-up pipe.
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Remove the oil pan baffle. | | -
CAUTION:Remove the oil pump retaining bolts in the sequence shown. Remove the oil pump. | |