Disassembly/Inspection and Service Crankcase Components Remove Closure Plate 1. Remove screws securing closure plate to crankcase. 2. Locate three splitting tabs, which are cast into perimeter of closure plate. Insert drive end of a 1/2" breaker bar between top splitting tab and crankcase. Hold handle horizontal and pull it toward you to break RTV seal. If necessary, pry at bottom splitting tabs also. Do not pry on sealing surfaces, as this could cause leaks. Note assembly and orientation of parts. Carefully pull closure plate from crankcase. Inspection Inspect oil seal in closure plate and remove it if it is worn or damaged. Inspect main bearing surface for wear or damage.
Replace closure plate assembly if required. 52 KohlerEngines.com 66 690 01 Rev. C M A T X V W U A Y Z L G E F D R C N Q B P O A S I H K J A Oil Seal B Closure Plate (Style A) C Governor Gear Shaft D Locking Tab Thrust Washer E Governor Gear F Regulating Pin G Camshaft H Gerotor Gears (Style A) I Oil Pump Assembly (Style A) J Nipple K Oil Filter L Crankshaft M Governor Cross Shaft N Piston Pin Retainer O Piston Pin P Connecting Rod Q Piston (Style B) R Piston Ring Set S Piston (Style A) T Closure Plate (Style B) U Ball (Style B) V Spring (Style B) W Oil Pump Cover O-ring (Style B) X Outer Gerotor Gear (Style B) Y Oil Pump Assembly (Style B) Z Oil Pick-Up (Style B)