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Engine overhaul manual page showing piston clearance and flywhee…

Scanned page from an engine overhaul service manual (page EM-24) covering piston-to-cylinder wall clearance inspection, piston-to-cylinder clearance measurement, and flywheel runout, with technical diagrams labeled SEM187A, SEM55C, and SEM027.

AI caption · Photo 78 of 412

ENGINE OVERHAUL PISTON TO CYLINDER WALL CLEARANCE 1. Measure piston diameter. Piston diameter "H": Refer to S.D.S. Measuring point "L: 9 mm (0.35 in) SEMIE7A 2. Check that piston clearance is within the specification. Piston clearance: 0.023 - 0.043 mm (0.0009 - 0.0017 in) Inspection (Cont'd) MEASURING PlSTON~T0~CVLINDER CLEARANCE When pulling feeler gauge straight upward, measure the extracting force. Feeler gauge thickness: 0.04 mm (0.0016 in) Extracting force: 4.9 v 14.7 N (0.5 - 1.5 kg,1.1 3.3 lb) 5EM55: Rum-n (Total Indium main.) L mm 0.15 mm (c.0059 in) SEM027. Install ring on flywhal While heating ring gear t1 about 180 to 220C (356 to 428F).

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