TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM9-2815-202-34 (27) Remove elbow (60) from front of left cylinder head or two elbows (60) from front of right cylinder head. (28) Remove adaptor bushing (61 ) and restrictive fitting (62) from front of left cylinder head. (29) If necessary, remove two bushings (63) from cylinder head bolt holes. b. Cleaning (1) Thoroughly clean cylinder head and cylinder head components (refer to Para 3-2). (2) Clean galleries in cylinder head using probes and brushes. (3) If water passages are heavily coated with scale, remove injector tubes and water nozzles and thoroughly clean water jacket areas. Change 1 4-189