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Piston and cylinder dimensions Honing dimension Piston ∅ Cylinder bore ∅ Basic dimen‐ sion mm 79.47 79.51 Stage I mm 79.72 79.76 Stage II mm 79.97 80.01 4.5 Piston rings, cylinder bore and piston in‐ stallation position Checking piston ring gap Special tools and workshop equipment required from bottom end of cylinder. Piston ring dimensions in mm New Wear limit 1. compression ring 0.20...0.40 1.0 2. compression ring 0.20...0.40 1.0 Oil scraper ring 0.25...0.50 1.0 Checking ring-to-groove clearance Special tools and workshop equipment required 4-cylinder diesel engine (1.9 l engine) - Edition 01.2009 42 Rep. Gr.13 - Crankshaft group
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