engine, rotax 1503 4-tec - Sea-Doo.net
engine, rotax 1503 4-tec - Sea-Doo.net
engine, rotax 1503 4-tec - Sea-Doo.net
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Section 01 ENGINES (<strong>1503</strong> 4-TEC)Subsection 07 (CYLINDER BLOCK)AAR610motr136A1R610motr76AA. Connecting rod big end bearingCONNECTING ROD BIG END DIAMETER mm (in)SERVICE LIMIT 45.080 (1.774)CONNECTING ROD BIG ENDCLEARANCE mm (in)SERVICE LIMIT 0.09 (.0035)Use NEW bearings no. 12, when connecting rodbig end diameter is out of specification.PistonInspect piston for scoring, cracking or other damages.Replace piston and piston rings if necessary.Using a micrometer, measure piston at 18 mm(.709 in) perpendicularly (90°) to piston pin axis.1. Measuring perpendicularly (90°) to piston pin axisA. 18 mm (.709 in)The measured dimension should be as describedin the subsequent table. If not, replace piston.PISTON MEASUREMENT mm (in)NEW NOMINAL99.951 to 99.969(3.935 to 3.936)SERVICE LIMIT 99.80 (3.929)Piston/Cylinder Wall ClearanceAdjust and lock a micrometer to the piston dimension.1F00B08A1. Micrometer set to the piston dimensionWith the micrometer set to the dimension, adjusta cylinder bore gauge to the micrometer dimensionand set the indicator to 0 (zero).SMR2005-037 95