612 Series Engine Rear End Cover/Crankshaft Oil Seal Installation Details
1. The installation details of the rear end cover/crankshaft rear oil seal on 612 Series engines are shown in the illustration to which all references in the text refer.
2. Remove the flywheel/drive plate (1) (see Section Removal and installation the flywheel/drive disc).
3. Unscrew the mounting bolts and remove the end cover (2) together with the rear crankshaft oil seal - pry the cover in the places indicated by the arrows, try not to damage the oil pan sealing gasket.
4. Drain the engine oil.
5. Loosen the oil pan mounting bolts and drain any remaining oil from the pan.
6. Clean the mating surfaces thoroughly.
7. Replace the cover with the seal pressed into it.
Note: If the seal (3) is damaged, the cover must be replaced.
8. Install the rear crankshaft seal ring (5) (assembly sleeve (4)).
9. Install the flywheel/drive plate.
10. Tighten the pan mounting bolts.
11. Fill the engine with fresh oil.
12. Start the engine and check for signs of developing leaks.
M628
628 Series Engine Rear End Cover/Crankshaft Oil Seal Installation Details
1 - End cap; 2 - Bolts; 3 - Crankshaft oil seal; 4 - Drive disk; 5 - Washer; 6 - Bolt; 7 - Blocker
1. The installation details of the rear end cover/crankshaft rear oil seal on 628 Series engines are shown in the illustration to which all references in the text refer.
2. Remove the transmission (see Chapter Automatic transmission).
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3. Using a special tool (7), lock the toothed ring of the drive disk.
4. Loosen the mounting bolts (6) and remove the drive disc (4) (see Section Removal and installation the flywheel/drive disc).
5. Drain the engine oil (see Chapter Changing engine oil and oil filter).
6. Unscrew the bolts (2) and remove the end cover (1), carefully prying it off with a flat-head screwdriver in the area where the guide bushings are installed.
7. Remove the old oil seal (3)
8. Carefully clean the mating surfaces and, having seated them with sealant, install the cover in place.
9. Install the new oil seal (3).
10. Reinstall the removed components in the reverse order of removal.
11. Start the engine and check it for signs of developing leaks.