Part 1

Engine














Engine Upper










Engine Upper - LH Cylinder Head










Engine Upper - RH Cylinder Head










Engine Front










Timing Drive Components










Engine Lower (View 1)










Lower Engine Block (View 2)









NOTICE: During engine repair procedures, cleanliness is extremely important. All parts must be thoroughly cleaned and any foreign material, including any material created while cleaning gasket surfaces, that enters the oil passages, coolant passages or the oil pan, can cause engine failure.

NOTE: Assembly of the engine requires various inspections/measurements of the engine components (engine block, crankshaft, connecting rods, pistons and piston rings). These inspections/measurements will aid in determining if the engine components will require replacement.

All engines

1. NOTE: This procedure is for selecting bearings using a new crankshaft.
Select the crankshaft main bearings for each crankshaft journal.

- Read the code on the crankshaft flange.

- Read the code on the cylinder block face.
- The first letter after the first asterisk makes up the code for main No. 1 and the next letter for main No. 2. The first letter after the second asterisk makes up the code for main No. 3 and the last letter for main No. 4.







2. Using the chart, choose a bearing for each main. Match the block and crankshaft code with its corresponding column or row, by reading across the "crankshaft" row and down the "block" column.
- If the block code is *BM*QS* and the crankshaft code is *OL*PO*, Main No. 1 should be built with grade 1 bearings, as determined by the intersection of the B block column and the O crankshaft row on the chart. Mains No. 2, No. 3 and No. 4 should all be grade 2.






3. NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.

Using the original connecting rod cap bolts, install the connecting rod caps and bolts.
- Tighten the bolts in 3 stages.

- Stage 1: Tighten to 23 Nm (17 lb-ft).

- Stage 2: Tighten to 43 Nm (32 lb-ft).

- Stage 3: Tighten an additional 90 degrees.


4. Measure the connecting rod large end bore in 2 directions.
- Remove the bolts and the rod cap.
- Discard the connecting rod cap bolts.







5. Measure each of the crankshaft connecting rod bearing journal diameters in at least 2 directions.





6. Using the chart, select the correct connecting rod bearings for each crankshaft connecting rod journal.





7. NOTE: Before assembling the cylinder block, all sealing surfaces must be free of chips, dirt, paint and foreign material. Also, make sure the coolant and oil passages are clear.
Lubricate the upper crankshaft main bearings with clean engine oil and install the 4 crankshaft main bearings in the cylinder block.






8. NOTE: Do not install the upper thrust bearings until the crankshaft is installed.

NOTE: Lubricate the thrust surfaces of the crankshaft with clean engine oil.
Install the crankshaft onto the upper main bearings.






9. NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.
Push the crankshaft rearward and install the rear crankshaft upper thrust washer at the back of the No. 4 rear bulkhead.






10. NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.
Push the crankshaft forward and install the front crankshaft upper thrust washer at the front of the No. 4 rear bulkhead.






11. Lubricate the crankshaft lower main bearings with clean engine oil and install them into the main bearing caps. Visually check seating and squareness of the bearings to make sure of proper seating in caps.





12. Position the No. 1, No. 2 and No. 3 main bearing caps on the cylinder block and, keeping the caps as square as possible, alternately draw the caps down evenly using the new bolts until the main bearing caps are seated.





13. NOTE: Make sure the side of the thrust washer, with the wide oil grooves, faces the crankshaft thrust surface.

NOTE: To aid in assembly, apply petroleum jelly to the back of the crankshaft thrust washer.
Install the lower crankshaft thrust washer to the back side of the No. 4 rear main bearing cap, with the tab aligned with the cutout in the main bearing cap.






14. Position main bearing cap No. 4 on the cylinder block and keeping the cap as square as possible, alternately draw the cap down evenly using the new bolts until the main bearing cap is seated.





15. Loosen the No. 4 main bearing cap bolts.

16. NOTE: While tightening the main bearing vertical bolts, push the crankshaft forward and the No. 4 main bearing cap rearward to seat the crankshaft thrust washers.
Tighten the main bearing bolts in the sequence shown in 2 stages.

- Stage 1: Tighten fasteners 1 through 8 to 33 Nm (24 lb-ft).

- Stage 2: Tighten fasteners 1 through 8 an additional 135 degrees.






17. Install the new 8 main bearing cap side bolts. Tighten in the sequence shown in 2 stages.
- Stage 1: Tighten fasteners 1 through 8 to 45 Nm (33 lb-ft).

- Stage 2: Tighten fasteners 1 through 8 an additional 90 degrees.






18. Using the Dial Indicator Gauge with Holding Fixture, measure crankshaft end play.
- Position the crankshaft to the rear of the cylinder block.

- Zero the Dial Indicator Gauge.

- Move the crankshaft to the front of the cylinder block. Note and record the crankshaft end play.






19. NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.

Prepare the connecting rod and cap.
- Insert the new bolts in the rod cap.

- Insert the upper and lower rod bearings into the rod and cap.






20. Before installing the pistons into the cylinder block, verify proper ring gap location.
1. Center line of the piston parallel to the wrist pin bore

2. Upper compression ring gap location

3. Upper oil control segment ring gap location

4. Lower oil control segment ring gap location

5. Expander ring and lower compression ring gap location






21. NOTICE: Be sure not to scratch the cylinder wall or crankshaft journal with the connecting rod. Push the piston down until the connecting rod bearing seats on the crankshaft journal.

NOTE: The next 3 steps are for all 6 connecting rods, rod caps and pistons. Only 1 connecting rod, rod cap and piston is shown.

NOTE: Lubricate the pistons, piston rings, connecting rod bearings and the entire cylinder bores with clean engine oil.

NOTE: Make sure the piston rings are positioned to specifications for installation. For additional information, refer to Disassembly and Assembly of Subassemblies - Piston.

NOTE: If the piston and or connecting rod are being installed new, the piston rod orientation marks and the arrow on the top of the dome of the piston should be facing toward the front of the engine block.

NOTE: If the piston and connecting rod are to be reinstalled, they must be installed in the same orientation as disassembled.
Using the Piston Ring Compressor, install the piston and connecting rod assemblies.






22. Seat the connecting rod on the crankshaft journal.

23. NOTICE: The rod cap installation must keep the same orientation as marked during disassembly or engine damage may occur.

NOTE: After installation of each piston, connecting rod, rod cap and bolts, rotate the crankshaft to verify smooth operation.
Install the connecting rod cap and bolts.
- Tighten the bolts in 3 stages.

- Stage 1: Tighten to 23 Nm (17 lb-ft).

- Stage 2: Tighten to 43 Nm (32 lb-ft).

- Stage 3: Tighten an additional 90 degrees.






24. Repeat the previous 3 steps until all 6 piston, connecting rod and connecting rod cap assemblies are installed.

25. Install the main bearing cap support brace and the new bolts. Tighten in the sequence shown in 2 steps.
- Stage 1: Tighten fasteners to 24 Nm (18 lb-ft).

- Stage 2: Tighten fasteners an additional 180 degrees.