Cleaning, Inspection, and Repair A solvent tank large enough to hold the larger engine parts will be needed as well as various bristle brushes and gasket scrapers. A source of compressed air will also be helpful in the cleaning operations. Special tools are listed and illustrated throughout this Section, with a complete listing at the end of the Section. These tools (or their equivalents) are specially designed to quickly and safely accomplish the operations for which they are intended. They should not be used in operations for which they are not designed. These special tools, when they are properly used, will also minimize possible damage to engine.
Some precision measuring tools are required for inspection of certain critical components. These include micrometers, torque wrenches, feeler gages, dial indicator set, etc. The inspection work, when performed with the proper methods and tools, is most important. The rebuilt engine cannot be expected to perform properly if the parts are worn beyond acceptable limits are reused. NOTICE: Use only a razor-blade type scraper on engine component surfaces. Use extreme care so sealing surfaces are not scratched. Do not use any other method or technique to remove gasket material except where indicated. Do not use abrasive pads, sand paper or power tools to clean gasket surfaces.
These methods of cleaning can damage the part. Abrasive pads also produce a fine grit that the oil filter cannot remove from the oil. THIS GRIT IS ABRASIVE AND HAS BEEN KNOWN TO CAUSE INTERNAL ENGINE DAMAGE. NOTICE: If the engine is damaged internally and needs to be rebuilt, make sure all foreign material is completely flushed out of the cooling system / oil cooler system (if equipped). Failure to flush out the debris can result in damage to the rebuilt engine. Cylinder Block Figures 12-22 through 12-25 Remove or Disconnect 1 . Oil pressure fitting and sensor. 2 . Coolant drain plugs. 3 . Camshaft and balance shaft cup plugs. 4 . Front oil gallery cup plugs. 5 . Rear oil gallery plugs.
Figure 12-22 Front Cylinder Block Oil Gallery Plugs Figure 12-23 Left Side Cylinder Block Coolant Drain and Oil Gallery Plugs G643 (E) Service Manual Chapter 3. Engine Mechanical System 72