49. Engine Block Clean and Inspect

Engine Block Cleaning and Inspection





1. Remove the engine block heater.
2. Remove the O-ring from the block heater and discard.





3. Remove the oil gallery plugs.





4. Remove the left engine mount bolts.
5. Remove the left engine mount.





6. Remove the right engine mount bolts.
7. Remove the right engine mount.
8. Clean the sealing material from the gasket mating surfaces of the block.
9. Clean the block in cleaning solvent.
10. Flush the engine block with clean water or steam.
11. Clean the oil passages.
12. Clean the cylinder bores.
13. Inspect the block for cracks. Use the Magnaflux Spot check dye method, or the equivalent.
^ Inspect the cylinder walls.
^ Inspect the coolant jackets.
^ Inspect the crankshaft bearing webs.





14. Inspect the crankshaft bearing bores and caps. The crankshaft bearing bore inside diameters should be round and uniform at all of the bearing supports.
15. Inspect the area where the crankshaft bearing inserts contact the crankshaft bearing bore. This area must be free of burrs and scratches.
16. Inspect the engine mount bosses.
17. Inspect the cylinder head gasket mating surfaces for pitting.





18. Inspect the engine block to cylinder head gasket surface area for warping. Use a straight edge and feeler gauge. Replace the block if it is warped more than 0.15 mm (0.006 inch) longitudinally or more than 0.08 mm (0.003 inch) transversely.
19. Apply sealer to the oil gallery plugs.






20. Notice: Refer to Fastener Notice in Service Precautions.

Install the oil gallery plugs.
Tighten the oil gallery plugs to 53 Nm (39 ft. lbs.).





21. Install the left engine block coolant plugs.
Tighten the left engine block coolant plugs to 18 Nm (13 ft. lbs.).





22. Install the right engine block coolant plugs.
Tighten the right engine block coolant plugs to 18 Nm (13 ft. lbs.).





23. Install the left engine mount and engine mount bolts.
Tighten the engine mount bolts to 58 Nm (43 ft. lbs.)..





24. Install the right engine mount and engine mount bolts.
Tighten the right engine mount bolts to 58 Nm (43 ft. lbs.)..





25. Install a new O-ring to the block heater.
26. Lubricate the O-ring with engine coolant.
27. Install the engine block heater.