TM 9-2815-202=34 8-20.  ENGINE  RUN-IN  (Cent) Table 8-3. Short Run-In Schedule Period Time Engine  Speed Load Number (Minutes) (RPM) (Brake  Horsepower) 1 5 600 0 2 !5 1200 0 3 30 2500 0 4 15 2300 107 5 15 2300 230 6 15 2300 Full Power Check 7 5 600 0 (Cooling  Off) Table 8-3.1. Run4n Schedule (Model 7083-7391 Only) Period Time Engine Speed Load Number (Minutes) (RPM) (Brake  Horsepower) 1 10 1200 56 2 5 2475 0 3 10 2300 396 4 5 2475 0 5 20 2300 Full Power Check 6 5 2475 0 (Cooling  Off) (2) Tighten cylinder head bolts and adjust exhaust valve clearance after run-in (Refer to  Para 4-27 and 8-4 respectively). (3) For model 7083-7391 only,  retorque right bank exhaust manifold stud nuts to 43-48  Ib-ft (59-67 N-m) after run-in (Refer to  Para 5.1-3). 8-50 Change  1