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Engine overhaul manual page showing crankshaft and cylinder bore…

Scanned engine overhaul service manual page (EM-23) covering inspection procedures for crankshaft runout, cylinder block distortion and wear, and cylinder bore measurement, with line drawings and specifications.

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ENGINE OVERHAUL CRANKSHAFT RUNOUT Check crankshaft runout. Runuul [1.I.H. [Tot-I indium: radium] : Lu then 0.00 mm (0.0031 inl sEMmeA CYLINDER BLOCK DISTORTION AND WEAR wmm in! surface Less then cu mm (0.004 in] sEMoaJA if beyond the specified limit, resurface it. Resurfacing limit: The resurfacing limit of cylinder block is deter- mined by the cylinder head resurfacing in an engine. ' _ Amount of cylinder head resurfacing is "A" Amount of cylinder block resurfeping is "B The maximum limit is as follows: A + B = 0.2 mm (0.008 in) When resurfacing, be careful not to cut off punched piston grade number. Inspection (Cont'd) CYLINDER BORE Using a bore gauge, measure cylinder bore for wear, out-of-round or taper. Standard inside diameter: 71.00 - 71.03 mm (2.7953 - 2.7965 in) Outof-round (X-Y) limit: 0.02 mm (0.0008 in) Taper (A-B) limit: 0.02 mm (0.0008 in) '-' . . sauna :U (0 79b "i A J i h l H 190(1941 v Unli', mm (ml sEMoesA Check scratches or seizure. lf seizure is found, hune it.

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