CRANKSHAFT AND CYLINDER BODY5-31EPOWR3. Measure:• Piston diameter(use an outside micrometer)Out of specification → Replace.NOTE:When measuring the piston diameter, posi-tion the micrometer in relation to the pistonpin hole as shown.CALCULATING THEPISTON-TO-CYLINDER CLEARANCECalculate:• Piston-to-cylinder clearance.Out of specification → Replace thepiston and piston rings, the cylinderor both.bcaOutside micrometer90890-03008Measuringpoint “H” Piston diameterSSSSttttaaaandndndndaaaarrrrdddd 10.0 mm(0.3937 in)71.94 – 71.96 mm(2.8323 – 2.8331 in)OOOOveveveverrrr ssssiiiizzzzeeee ppppiiiisssstttton don don don diiiiaaaammmmeeeetttteeeerrrr::::1111:::: 72727272....22225555 mmmmmmmm ((((2222....8484848444445555 iiiinnnn))))2222:::: 72727272....55550000 mmmmmmmm ((((2222....8585858544443333 iiiinnnn))))Piston-to-cylinderclearance=Cylinderborediameter– PistondiameterPiston-to-cylinder clearance0.060 – 0.065 mm(0.0024 – 0.0026 in)
