TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 (f) "D" Diameter - should be same size as "B" diameter. However, due to a bell mouth flare caused by honing stone’s vertical travel, a maximum +0.0022 inch diameter flare over “B” diameter is allowed in lower air box area. (9) "E" Diameter - Must be within 0.0005 inch classification range as determined by “B” (h) "F" Diameter - should be same size as"B" diameter. However, due to a bell mouth flare caused by honing stone’s vertical travel, a maximum +0.0012 inch diameter flare over "B" diameter is allowed in lower crank area of bore. (3) Check cylinder head contact area for flatness with straight edge (63) and feeler gage (64). Measurements must not vary more than 0.003 inch crosswise and over 0.007 inch lengthwise. (4) Check cvlinder liner counterbore ., depth by using dial indicator (65). NOTE Counterbore depth must be 0.4770 to 0.4795 inch and must not vary more than 0.0015 inch through entire circumference. Counterbore surfaces must be smooth and square with cylinder bore and within 0.001 inch total indicator reading. There must not be over 0.001 inch difference between any two adjacent cylinder counterbores when measured along cylinder lengthwise center line of cylinder block. Change 1 4-169