Removal and Replacement
REMOVAL1. Remove engine from vehicle. Refer to Engine, Service and Repair, Removal and Installation.
2. Remove oil pan.
3. Remove oil pickup tube.
4. Remove crankshaft damper.
5. Remove idler pulley for accessory drive belt.
6. Remove front lower timing belt cover.
7. Remove front main timing belt cover.
8. Remove front left side timing belt cover.
9. Remove timing belt tensioner and timing belt.
10. Remove crankshaft sprocket. Refer to Timing Cover Removal and Installation for procedure.
11. Tap dowel pin out of crankshaft. Refer to Crankshaft Gear/Sprocket, Service and Repair for procedure.
12. Remove oil pump assembly.
13. Remove rear crankshaft oil seal retainer.
Fig. 69
14. Remove connecting rod bearing caps. Connecting rod bearing caps are not interchangeable and should be marked before removal to insure correct assembly (Fig. 69).
Fig. 70
15. Remove main bearing caps. Main bearing caps are not interchangeable and are marked to insure correct assembly (Fig. 70).
16. Remove Crankshaft.
NOTE: Before installing Crankshaft refer to Engine, Service and Repair, Service Procedures, Fitting Main Bearings and Installation of Connecting Rod Bearings.
INSTALLATION
Fig. 71
CAUTION: Main bearings are select fit. Refer to Engine, Service and Repair, Service Procedures, Fitting Main Bearings for proper bearing selection (Fig. 71).
1. Install Crankshaft.
Fig. 72
2. Move crankshaft forward to limit of travel. Lubricate and install the front thrust washer by rolling the washer onto the machined shelf between the No. 2 upper main bulk head and crankshaft thrust surface (Fig. 72).
3. Move crankshaft rearward to limit of travel. Lubricate and install the rear thrust washer by rolling the washer onto the machined shelf between the No. 2 upper main bulk head and crankshaft thrust surface.
4. Lubricate lower main bearings with clean engine oil.
NOTE: Lubricate main bearing cap bolts with engine oil before installation.
5. Install each main cap and tighten bolts finger tight. The main bearing cap bolts must be tightened in the proper sequence. First the inner main cap bolts, secondly the windage tray bolts, lastly the main cap tie (horizontal) bolts.
6. Install the inside main bearing cap bolts and tighten to 20 Nm + 1/4 turn (15 ft. lbs. + 1/4 turn).
7. Measure crankshaft end play.
8. Install connecting rods and measure side clearance.
9. Install windage tray. Lubricate bolts with engine oil and tighten to 27 Nm + 1/4 turn (20 ft. lbs. + 1/4 turn).
10. Install the main cap tie (horizontal) bolts and tighten to 28 Nm (250 in. lbs.).
11. Install rear crankshaft oil seal retainer and oil seal.
12. Install oil pump assembly.
13. Install dowel pin in crankshaft.
14. Install crankshaft sprocket.
16. Install Timing Belt.
16. Install 3 timing belt covers.
17. Install crankshaft damper.
18. Install idler pulley for accessory drive belt.
19. Install oil pickup tube and tighten bolt to 28 Nm (250 in. lbs.).
20. Install oil pan.
21. Install engine assembly.
22. Fill engine crankcase with proper amount of oil.