ARMY TM 9-2815-260-24 AIR FORCE TO 38G1-126-2 MARINE CORPS TM 09244A/09245A-24 5-89 e.   Installation. CAUTION Install cylinder liners into same cylinder block bore as removed.  DO NOT scuff the liner packing across the upper counterbore. (1) Remove all covering installed during step b (7). CAUTION If liner outer diameter is pitted or eroded, but still within acceptable service limits, rotate liner 90 degrees from its removed position.  Pitted sections of the liner should be facing the front or rear of the engine. (2) Install liner in block bore with mark toward front of engine, unless outer diameter is pitted or eroded. CAUTION If you suspect a packing may have sheared or displaced during liner installation, remove and examine the liner and packing assembly.  If no damage is found, check packings for proper position.  Resoap packings, and reinstall liner assembly. (3) A resistance will be felt when the cylinder liner is aligned in pilot bore.  Finish seating liners using clean, hardwood block and mallet.  Gently tap hardwood block over top of cylinder liner with mallet. NOTE Cylinder liner will protrude over top of cylinder block more than normal due to uncompressed packings and O-rings. (4) Hold liners in place with large flat washers and capscrews.  Turn capscrews snug but do not tighten. (5) Clean cylinder liner bores with waterless hand cleaner after installation.  Wipe dry with clean towels. (6) Apply clean engine oil to liner bores immediately to prevent corrosion.