2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 62Get this manual
ENGINE Sportsman 400 H.OEngine Service Data (EH46PLE 455cc Carbureted)
CylinderPistonConnecting Rod Surface warpage limit (mating with cylinder head) Cylinder bore Taper limit Cylinder Out of round limit Piston clearance Boring Limit Std Piston Outer diameter Std Limit Std EH46PLE (455cc) .0020" (0.05 mm) 3.4606-3.4614" (87.90-87.92 mm) .0020" (0.050 mm) .0020" (0.050 mm) .0006-.0020" (0.015-0.050 mm) .0024" (0.060 mm) .020" (.5 mm) 3.4594-3.4600" (87.870-87.885 mm)
.0098" (.25 mm) OS 3.4693-3.4699" (88.120-88.135 mm) .0197" (.50 mm) OS 3.4791-3.4797" (88.370-88.385 mm) .9055-.9057" (23.0-23.006 mm) .9053-.9055" (22.994-23.0 mm) .0002- .0003" (.004- .008 mm) Piston Pin must be push (by hand) fit at 68o (20o C) Top ring Std Limit Std Limit Std Limit Std Limit Std Limit Std Limit Std Limit Std Limit .0079-.0138" (.20-.35 mm) .039" (1.0 mm) .0079-.0138" (.20-.35 mm) .039" (1.0 mm) .0079-.0236" (.20-.60 mm) .059" (1.5 mm) .0016-.0031" (.040-.080 mm) .0059" (.15 mm) .0012-.0028" (.030-.070 mm) .0059" (.15 mm) .9058.9063" (23.00723.020 mm) .0003-.0010" (.007-.026 mm) .0020" (.05 mm) .0035-.0197" (.09-.50 mm) .0315" (.80 mm) .0004-.0015" (.011-.038 mm) .0020" (.05 mm) .0024" (.06 mm)