Figure 14-42. Cylinder Head Capscrew Locations and Torquing Sequence(11) Adjust all intake and exhaust valves toa cold tappet clearance setting of 0.018 inch.(16) Retighten the 20 capscrews to 155-165foot-pounds torque following the sequence depicted infigure 14-42 section A. If capscrew does not move whenthis specified torque is reached, back off slightly byloosening, the retighten to specified torque. This is im-portant in eliminating possible false torque readings dueto temporary thread seizure.(12) Connect the oil feed tube to the fittingin the cylinder head and install cylinder head cover andgasket.(13) Replace engine valve cover, tachometerdrive, adapter, overspeed switch, manifolds, exhaustpipe, radiator, cooling hoses, turbocharger, and enginearea panels. Refer to Operator and OrganizationalMaintenance Manual.(17) Position rocker arms, shaft andbrackets assembly on cylinder head and align rockerarm adjusting screws in the push rod cup ends. Installthe six long capscrews; also install the six 3 3/8 inchcapscrews and lockwashers in the rocker arm brackets.Tighten the long capscrews to 90-110 foot-pounds andthe 3/8 inch capscrews to a torque of 28-33 foot-poundsfollowing this sequence depicted in figure 14-42, sectionB.(14) Fill the cooling system. Run engine forapproximately one hour, perferably under load, with aminimum coolant temperature of 160° F. Inspect enginefor leaks.(15) Remove valve cover and rocker shaftassembly from cylinder head to gain access to the 20capscrews securing the cylinder head.(18) Retighten the 6 long capscrews to155-165 foot-pounds following the sequence depicted infigure14-42, Section B. Retighten the 3/8 inchcapscrews to maintain a torque of 28-33 foot-pounds percapscrew.Change 614-87
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