TM 9-2815-225-34&P 3-35.  CYLINDER HEAD AND VALVE REPAIR (Contd) LOCATION/ITEM ACTION REMARKS d.  Assembly and Testing NOTE Ensure all parts are clean prior to assembling. 24. Six new expansion plugs a.  Apply a coat of cup plug sealant (10), new expansion plug to expansion plugs and to inside (16), and two new diameter of water holes on expansion plugs (17) cylinder head (9). b.  Using drivers (57), install Use expansion plug drivers expansion plugs (10), (16), and (3375190, 3375191, and 3375192) (17) on cylinder head (9). (56).  If expansion plug drivers (57) are not available, use mandrel of correct size and ensure expansion plugs (10), (16), and (17) are installed even (flush) with, or not more than, 0.090 in. (2.286 mm) below chamfer (see illustration). Do not push expansion plugs to bottom of counterbore. 25. Four pipe plugs (27) a.  Coat threads of each pipe plug (27) with liquid thread sealant. b.  Install two on each end of No. 3 cylinder head has two pipe cylinder head (9). plugs (27) in forward end only. Tighten pipe plugs (27) to: PLUG SIZE           TORQUE 1/16 in. 3-6 lb-ft (4-8 Nm) 1/8 in. 5-10 lb-ft (7-14 Nm) 3/8 in. 35-45 lb-ft (48-61 Nm) 1/2 in. 60-70 lb-ft (81-95 Nm) 3/4 in. 65-75 lb-ft (88-102 Nm) 1 in. 135-145 lb-ft (183-197 Nm) 3-142