Removal and Installation

REMOVAL
1. Remove engine from vehicle.
2. Drain engine oil.
3. Remove oil pan.
4. Remove oil pick-up tube.
5. Remove idler pulley for accessory drive belt.
6. Remove lower timing belt cover.
7. Remove main timing belt cover.
8. Remove left side timing belt cover.
9. Remove crankshaft damper.
10. Remove timing belt tensioner and timing belt.
11. Remove crankshaft sprocket. Refer to Front Crankshaft Oil Seal.
12. Tap dowel pin out of crankshaft. Refer to Front Crankshaft Oil Seal.
13. Remove oil pump assembly.
14. Remove rear crankshaft oil seal retainer.

Figure 44-Connecting Rod To Cylinder Identification:

15. Remove connecting rod bearing caps. Connecting rod bearing caps are not interchangeable and should be marked before removal to insure correct assembly.

Figure 45-Main Bearing Cap Identification:

Figure 46 Main Bearing Identification:

16. Remove main bearing caps. Main bearing caps are not interchangeable and are marked to insure correct assembly.
17. Remove Crankshaft.

NOTE: Before installing Crankshaft refer to Fitting Main Bearings and Installation.

INSTALLATION

Figure 47-Thrust Washer Installation:

NOTE: Upper and lower bearing halves are NOT interchangeable. Lower main bearing halves of 1, 2, 3, and 4 are interchangeable. Upper main bearing halves of 1, 2, 3, and 4 are interchangeable.

CAUTION: Main bearings are select fit. Refer to Crankshaft Main Bearing Fitting.

1. Install Crankshaft.
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.
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 inch lbs.).
11. Install rear crankshaft oil seal retainer and oil seal.
12. Install oil pump assembly. Refer to Oil Pump.
13. Install dowel pin in crankshaft. Refer to Front Crankshaft Oil Seal.
14. Install crankshaft sprocket. Refer to Front Crankshaft Oil Seal.
15. Install Timing Belt. Refer to Camshaft Sprockets and Timing.
16. Install (3) timing belt covers.
17. Install crankshaft damper.
18. Install idler pulley for accessory drive belt.
19. Install oil pick-up tube and tighten bolt to 28 Nm (250 inch lbs.).
20. install oil pan.
21. Install engine assembly.
22. Fill engine crankcase with proper amount of oil.