2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 77Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 77

ENGINE Camshaft Inspection 1Visually inspect each cam lobe for wear, chafing or damage2Thoroughly clean the cam shaft, making
on next page Cam Lobe Height (IntakeExhaust): Std: 1.2884-1.2924" (32.726-32.826 mm) Limit: 1.2766" (32.426 mm) 3Measure
height of each cam lobe using micrometerCompare to specificationsJournal O.D 2Loosen each of the four cylinder head bolts
evenly 18 turn each time in criss-cross pattern until loose3Remove bolts (B) and tap cylinder head lightly with plastic hammer
until looseIMPORTANT: Tap only in reinforced areas or on thick parts of cylinder head casting to avoid damaging the thread
Journal Camshaft Journal O.D MagPTO End: 1.4935-1.4941" (37.935-37.950 mm) 4Measure camshaft journal outside diameter (O.D