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CYLINDER BLOCK EM-109 < UNIT DISASSEMBLY AND ASSEMBLY > C D E F G H I J K L M A EM N P O NOTE: When determining cylinder bore grade, measure the cylinder bore at (B) position. • If measured value exceeds limit or if there are scratches and/or seizure on the cylinder inner wall hone or re- bore the cylinder inner wall. Piston Skirt Diameter • Measure outer diameter of piston skirt with suitable tool (A). Piston to Cylinder Bore Clearance • (Piston to cylinder bore clearance) = (Cylinder bore inner diameter) - (Piston skirt diameter) • If measured value exceeds limit replace piston and piston pin assembly.. PISTON RING END GAP • Check that cylinder bore inner diameter is within standards. • Lubricate with new engine oil to piston (1) and piston ring (2), and then insert (A) piston ring to middle of cylinder (B) with piston and measure piston ring end gap using suitable tool (C). • If measured value exceeds limit replace piston ring and measure again. If it still exceeds the limit replace cylinder block. CRANKSHAFT MAIN JOURNAL DIAMETER (f) : 10 mm (0.39 in) (g) : 75 mm (2.95 in) (h) : 140 mm (5.51 in) Standard: : Refer to . Limit: Out-of-round [Difference between (A) and (B)] : Refer to . JPBIA2059ZZ Standard . PBIC3272J Standard and Limit : Refer to Standard and Limit : Refer to PBIC3267J |