Dismantling
1. Remove the oil pump.
V8 Engine, ENGINE OVERHAUL, Oil Pump.
Disassembly
1. Using a socket head fitted onto the pulley mounting bolt and a ratchet, turn the crankshaft in the normal direction of rotation, providing access to the connecting rod bolts.
2. Mark the connecting rods and connecting rod caps according to cylinder numbers.
NOTE: The connecting rod caps and connecting rods have marks that align during assembly.
3. Loosen and remove the connecting rod bolts, save them for this step.
4. Remove the connecting rod caps, remove and discard the connecting rod bearings.
5. Move the connecting rod away from the crank pin.
6. Remove the bearing from the connecting rod and discard it.
NOTE: Connecting rod bearings with a blue mark are installed in the connecting rod, and those with a red mark are installed in the lower head cap.
7. Do the same with the remaining connecting rod bearings. Lay out the connecting rod caps in the order in which they were on the engine.
Examination
1. Wipe the connecting rod journals, new bearings, and the upper and lower bearing beds.
2. Measure the diameters of all crankpins, taking 4 measurements at 90° on each journal. Record the measurement results.
TECHNICAL SPECIFICATIONS, Engine - V8.
3. Wipe and lubricate the old connecting rod bolts.
4. Turn the crankshaft with the connecting rod journal to the NDC position.
5. Insert the new bearing shell with the blue marking into the connecting rod.
6. Insert the new bearing shell with the red marking into the connecting rod cap.
7. Place the connecting rod on the crankpin.
8. Place a strip of deformable gauging material (Plastigage) on the crankpin.
9. Install the connecting rod cap, making sure that the timing marks on the connecting rod and connecting rod cap are aligned.
CAUTION: Do not rotate the crankshaft while using the calibration material.
10. Screw in the old connecting rod bolts and pre-tighten them to 5 Nm, then tighten them to 20 Nm and then turn them a further 80°.
CAUTION: Do not rotate the crankshaft while using the calibration material.
11. Loosen the connecting rod cover mounting bolts and remove it.
12. Using a special ruler, measure the width of the calibration strip and use this value to determine the clearance in the connecting rod bearings.
13. If the required clearance value cannot be achieved with this set of liners, the crankshaft journals must be ground to the next repair size and liners of the corresponding repair size must be installed.
TECHNICAL SPECIFICATIONS, Engine - V8.
14. Leave the bearings found to be good in the connecting rod and in the connecting rod cap.
15. Using clean engine oil and a cloth, remove all traces of the calibration strip.
16. Perform the operations described above on the remaining connecting rod journals.
17. After checking the connecting rod bearing clearances, discard the used connecting rod bolts.
Assembly
1. Lubricate the connecting rod journals and the connecting rod bearings that have been found to be in good condition with clean engine oil.
2. Place the connecting rod on the crankpin, making sure the bearing shell is in the correct position.
3. Install the connecting rod cap, making sure that the timing marks on the connecting rod and connecting rod cap are aligned.
4. Wipe and lubricate the new connecting rod bolts.
5. Install new connecting rod bolts and pre-tighten them to 5 N·m, then tighten them to 20 N·m and then turn them a further 80°.
Assembly
1. Install the oil pump.
V8 Engine, ENGINE OVERHAUL, Oil Pump.
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