F 1 1 m 11 il W F W n 1 W 11 F v v W 1 W 1 1 1 1 1 a v 1 1 pn y r E Fig 107 Installing Piston in Cylinder ring action and reduce wear Therefore when fitting new rings the clearances between the top and bottom surfaces of the ring grooves should be measured fig 106 See Specifications Cylinder 1 ApVly a light coat of engine oil to the piston rings 2 Install piston ring compressor Tool J 803 over the piston and rings Tighten snugly and insert piston and connecting rod assembly into the respective cylinder bore Corresponding number 3 Push piston assembly in with a hammer handle while holding cylinder bore in one hand until it is slightly below the top of the cylinder bore fig 107 NOTE Notch on piston top must be installed toivards the front of engine flywheel end on both banks CRANKCASE Cleaning and Inspection 1 Remove two oil gallery plugs located at flywheel housing end of crankcase These oil gallery passages should be thoroughly cleaned with cleaning solvent 2 Check cylinder pilot bores and bearing surfaces in each half of crankcase for nicks cracks or other da nage that would interfere with the proper fit of coltnponent parts NOTE Do not use scrapers or other sharp tools to clean gasket surfaces A good cleaning solvent should be used to dissolve gasket material or varnish that may adhere to surfaces NOTE The crankcase unit is serviced with all mtin bearfngb installed Crankcase studs must bel installed or transferred