Intake Manifold and Cylinder Heads/Cylinder Head 4. For P218G, P220G, B43E, B43G, or B48G engine, install a new gasket (A) on cylinder head. 5. Install cylinder head on cylinder block with the five longest cap screws in the top holes of cylinder head. Tighten cap screws in several steps in the sequence shown. M36935 -UN-25JAN90 M36936 -UN-25JAN90 CAP SCREW TORQUE SPECIFICATION 10 12 Attaching Cap Screws . . . . . . . . . . . . . 20 ± 1 N·m (180 ± 12 lb-in.) 6. Install spark plug (B). M98,2010K,22 -19-30JAN87 CTM2 (19APR90) 10-12 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495