35. Engine Block Clean and Inspect

Engine Block Cleaning and Inspection

^ Tools Required
- J 8087 Cylinder Bore Gauge





1. Clean the following components:
^ Use solvent to clean the engine block.
^ Clean the gasket surfaces.
^ Clean the coolant passages.
^ Clean the oil passages.
2. Inspect the following for cracks:
^ Inspect the cylinder walls for cracks.
^ Replace the engine block if any cracks are evident.
^ Inspect the coolant jackets for cracks.
^ Replace the engine block if any cracks are evident.
^ Inspect the main bearing insert cavities for cracks.
^ Replace the engine block if any cracks are evident.
3. Inspect for the following in the cylinder walls:
^ Inspect for gouges in the cylinder walls deeper than 0.05 mm (0.002 inch).
^ Bore the cylinder if gouges are deeper than 0.05 mm (0.002 inch).
^ Inspect for pitting in the cylinder walls deeper than 0.05 mm (0.002 inch).
^ Bore the cylinder if pitting is deeper than 0.05 mm (0.002 inch).
^ Inspect for scores is the cylinder walls deeper than 0.05 mm (0.002 inch).
^ Bore the cylinder if scores are deeper than 0.05 mm (0.002 inch).
4. Use the J 8087 to measure the cylinder bore at the directed points (1, 2) for the following conditions:
^ Measure for wear.
^ Measure for taper.
^ Measure for runout.
^ Measure for ridging.
5. The cylinders with less than 0.05 mm (0.002 inch) of wear and/or taper may be reconditioned.
6. Recondition the cylinders with less 0.05 mm (0.002 inch) with a hone and fitted with the appropriate size select fit piston (providing the cylinder was not fitted with the largest size select fit piston).