TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 4-34 CYLINDER LINER MAINTENANCE (Cont.) NOTE After honing, liner must conform to same limits on taper and out of round as a new liner and piston to liner clearance must be within specified limits. f. Selection Of New Cylinder Liner NOTE Cylinder bores in a new cylinder block are classified as #0, #1, #2, #3 or #4 (Table 4-4), designating size range for each bore. An appropriate cylinder liner is fitted to each bore. This number is stamped on fire deck of cylinder block next to each cylinder bore. TABLE 4-4. NEW CYLINDER LINER TO NEW CYLINDER BLOCK BORE FITS Standard Cylinder Liner Diameters Classification Cylinder and Liner-to-Block Clearances Number Stamped Bore When Properly Matched Adjacent to Classification Liner (0. D.) Liner (0. D.) Liner/Block Each Cyl. Bore Diameter (I. D.) Classification Diameter Clearance CAST IRON BLOCK #0 4.6256"/4.6259" #1 4.6250"/4.6255" .0001"/.0009" #1 4.6260"/4.6265" #1 4.6250"/4.6255" .0005"/.0015" #2 4.6256"/4.6260" .0000"/.0009" #2 4.6266"/4.6270" #2 4.6256"/4.6260" .0006"/.0014" #3 4.6261"/4.6265" .0001"/.0009 #3 4.6271"/4.6275" #3 4.6261"/4.6265" .0006"/.0014" #4 — #4 4.62701"/4.62800 .0005"/.0015" METRIC #0 117.490/117.498 mm #1 117.475/117.488 mm .002/.023 mm #1 117.500/117.513 mm #1 117.475/117.488 mm .012/.038 mm #2 117.490/117.500 mm .000/.023 mm #2 117.516/117.526 mm #2 117.490/117.500 mm .0161.036 mm #3 117.503/117.513 mm .003/.023 mm #3 117.528/117.539 mm #4 117.503/117.513 mm . 015/.036 mm I #4 I — I #4 I 117.527/117.551 mm I .012/.038mm 4-148