TM5-6115-593-34NAVFAC P-8-631-34TO-35C2-3-463-2with word "top" at top.(5) Lubricate pistons, rings, and cylinder linerswith clean lubricating oil.(6) Using a standard hand-type ring compressorto compress rings, insert piston and rodassembly in liner from bottom of liner.(7) Assemble new O-ring packings and creviceseals on cylinder liner as follows:NOTETo prevent swelling of O-rings, lubricatelightly with clean engine lubricating oil,just prior to installation.(a) Roll black O-ring with one yellow markinto position in upper groove. Install thered silicone O-ring with two blue marksin lower groove.(b) Check for twisted O-ring in groovesusing mold mark on rings as guide,straighten as required.(c) Install new crevice seal on liner.(8) Lubricate machined portions of block, onwhich packing rings seat, with clean lubricating oil.CAUTIONNeverusewhiteleadforlubricant.Whiteleadwill hardenandmakecleaningdifficult atnextengineteardown.(9) Lift liner, piston and rod assembly and slideinto cylinder liner bore. Numbers onconnecting rods must be toward outside ofengine. Connecting rods and caps arenumbered to correspond with theirrespective cylinders; numbers on rods andcaps must be matched. Two rods areassembled on each crank journal.CAUTIONIf liner is difficult to push down, thepacking rings may be twisted or haveslipped. Remove liner to check rings;use extreme care to avoid twist or cut ofO-rings.(10) Drive liners to seat with cylinder linerdriver; when liner is near seat, tap gently toprevent bouncing off seat as liner is drivenin place.(11) With piston at lowest possible point, checkliner bore for roundness at several pointswithin range of piston travel. See figure13-49.(a) Check with precision dial bore gauge.(b) Micrometer readings to be taken asnear points C, D, E, F, and G along axisA-A and B-B.(c) At point C, approximately 1 inch (25.40mm) below top of liner, it is permissibleto have up to 0.003 inch (0.08 mm) ofout-of-round.(d) At other points, each about 2 inches(50-80 mm) lower than preceding depth,out-of-round must not exceed 0.002inch (0.05 mm).(12) Check liner protrusion at four equidistantpoints with a gauge block to determine ifprotrusion is uniform and 0.004 to 0.006inch (0.10 to 0.14 mm) above block.(13) Lubricate crankshaft side of bearing shellswith a thin coat of clean engine lubricatingoil. Slide upper connecting rod bearingshells into position between the crankshaftjournals and rods. Be certain bearing shelllocating tang makes firm contact with therecesses in the rod.(14)Place lower connecting rod13-93
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