Quantcast Table 5-11.  Piston and Cylinder Liner Specifications (Continued)

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ARMY TM 9-2815-259-24 AIR FORCE TO 38G1-125-2 MARINE CORPS 09249A/09246A-24 5-88 Table 5-11.  Piston and Cylinder Liner Specifications (Continued). Item Specification Maximum Permissible height differences a Nearest Point of Two Adjacent Liners or Within A Single Liner 0.002 in. (0.05 mm) Main Bearing bore in Cylinder Block 3.3250 - 3.3260 in. (84.455 - 84.481 mm) Camshaft Follower Bore ID in Block 1.248 - 1.250 in. (31.70 - 31.75 mm) Camshaft Follower 1.245 - 1.246 in. (31.61 - 31.64 mm) Camshaft Follower-to-Bore Clearance 0.002 - 0.005 in. (0.06 - 0.13 mm) NOTE Front cam bore in block has a replaceable bushing; remaining machined bores do not have bushings. Camshaft Bore ID: Front (No. 1) in Block (without bushing) 2.3607 - 2.3617 in.( 59.961 - 59.987 mm Front (No. 1) in Block (with bushing) 2.2031 - 2.2042 in. (55.961 - 55.987 mm) All except No. 1 2.2042 - 2.2052 in. (55.986 - 56.012 mm) (j) Measure cylinder liner height above cylinder block as follows: 1 Ensure that cylinder liner bore in cylinder block and top deck of cylinder block are clean. 2 Install cylinder liner in cylinder liner bore without O-rings and packing. 3 Insure that cylinder liner rotates smoothly by hand.  If cylinder liner does not rotate smoothly by hand, remove cylinder liner and polish cylinder liner bore with emery cloth or Brush.  Use shop towel or other suitable means to collect debris when polishing cylinder liner bore. 4 Position cylinder liner with liner mark towards front of engine.  Secure with capscrews and washers, refer to paragraph 5.4.5.  Torque capscrews to 50 lb-ft (68 Nm). 5 Using Piston and Liner Height Gauge and Dial Indicator, measure cylinder liner height above cylinder block at 1, 5, 7, and 11 o’clock positions as viewed from back of engine.  Record measurement.  Compare cylinder liner height above cylinder block with specifications given in Table 5-11. 6 If cylinder liner height above cylinder block is above specification, check cylinder block for burrs.  Repair or replace as required.


 


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