TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 5-37. CYLINDER HEAD REPAIR (Cont) (b) Remove broken valve bridge guides as 1. 2. 3. 4. Center punch end of valve bridge guide (18). Drill hole 0.5 inch deep in end of guide (18) with No. 3 (0.2130 inch) drill bit. Tap guide with 1/4-28 bottoming tap. Thread bridge guide remover (79) into tapped hole. 5. Attach slide hammer (80) to guide remover (79) and remove guide. (c) Install valve bridge guides as follows: 1. 2. 3. Apply a coat of sealant to bridge guide (18). Start guide (18) in cylinder head with undercut end first. Place bridge guide installer (81) over guide (18) and drive into place. Installer will position guide to correct height (2.040 inches) in cylinder head. 5-46 Change 1