CHAPTER XI

Tools for Adjusting and Erecting--Forms of Wrenches--Use and Care of Files--Split Pin Removal and Installation--Complete Chisel Set --Drilling Machines--Drills, Reamers, Taps and Dies--Measuring Tools--Micrometer Calipers and Their Use--Typical Tool Outfits --Special Hall-Scott Tools--Overhauling Airplane Engines--Taking Engine Down--Defects in Cylinders--Carbon Deposits, Cause and Prevention--Use of Carbon Scrapers--Burning Out Carbon with Oxygen --Repairing Scored Cylinders--Valve Removal and Inspection --Reseating and Truing Valves--Valve Grinding Processes-- Depreciation in Valve Operating System--Piston Troubles--Piston Ring Manipulation--Fitting Piston Rings--Wrist-Pin Wear-- Inspection and Refitting of Engine Bearings--Scraping Brasses to Fit--Fitting Connecting Rods--Testing for Bearing Parallelism-- Cam-Shafts and Timing Gears--Precautions in Reassembling Parts 376-456