Intake and Exhaust Valves/Intake and Exhaust Valves INSTALL INTAKE AND EXHAUST VALVES 1. Clean and dry all parts. Apply clean engine oil to all internal parts. Use a valve gasket kit when assembling the engine. 2. Install a new gasket (A) on intake valve guide. 3. Install valve guides using JDG 569 Valve Guide Installer (B) and a large washer (C). Pull valve guides until shoulder is tight against cylinder block. M36953 -UN-25JAN90 CTM2 (19APR90) 15-12 16, 18, 20 & 24HP Onan Engines M98,2015K,25 -19-30JAN87 AllTractorManuals.com 130495 IMPORTANT: Failure to lean top surface of valve guide can damage valve guide bore during removal. 33.
Remove carbon from top surface of valve guide using a wire brush. 34. For B43E, B43G, B48G or T260 engine, remove valve guides using JDG 323 Valve Guide Driver. For P218G or P220G engine, remove valve guides using JDE 118 Valve Guide Driver. 35. Remove gasket (A). -UN-29JAN90 M36278 M98,2015K,24 -19-30JAN87 15 12