TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 Gravity, Degrees, API, 60F (15.5C, ASTM D287 ............................................. 41 to 39 Flash Point, P.M., closed cup, ASTM D93 160F (71C) min.  color, ASTM D1500 ........................... 2 max. Water, ASTM D1796  ...................................... 0.005 Corrosion, ASTM, D130  ..............................Must pass class I Galvanic corrosion, ASTM 5322-1 ....................................... Must pass Sulphur percent weight, ASTM P 129, D1552 ........................................ 0.4 Distillation at 20 percent point, ASTM D86  ............................. 440F (226C) min. Sediment - Using a 10-micron filter, 22,260 particles per milliliter are permissible.  Using a 40-micron filter, 195 particles per milliliter are permissible.  Using a 50-micron filter, 5 particles per milliliter are permissible. Mobil   Oil   Company   Type   MCL-41   is   one source that meets the above requirements. (2)   The instruments on the fuel pump test stand must be periodically checked and maintained. (3)   Refer    to    paragraph    13-14a    for    detailed procedures  for  connecting  a  fuel  pump  to the test stand, and operating the test stand. c. Adjustment on Engine.  To adjust the fuel pump, refer to figure 13-23 and proceed as follows: (1)   Before  making  fuel  pump  adjustments,  be certain   the   following   initial   conditions   are observed: (a)   Engine    is    at    operating    temperature. Fuel   temperature   is   not   above   110F (43 C). (b)   Timing, valves, and injectors are properly adjusted. (c)   Throttle  control  linkage  is  adjusted  so full   throttle   is   obtained,   and   when   re- leased    throttle    is    stopped    by    front throttle leakage adjusting screw. (2)   Remove   the   speed   switch   in   accordance with  the  Operator/Crew  and  Organizational Maintenance   manual,   and   connect   a   high accuracy    tachometer    to    the    fuel    pump tachometer drive connection. (3)   Operate   the   engine   a   sufficient   period   of time     to     bring     engine     up     to     operating temperature   (at   least   165   F   (74C)   oil temperature. (4)   Remove    pipe    plug    (1,    figure    13-23)    to provide  access  to  the  idle  adjusting  screw (16). (5)   Turn   the   idle   adjusting   screw   (16)   in   to increase or out to decrease the speed using the   fuel   pump   spring   pack   adjusting   tool. The recommended idle speed is 550 ± 20 to 30 rpm. d. Replace.  Tolreplace the fuel pump, proceed as follows: (1)   Disconnect   the   fuel   pump   line   from   the pump shut-off valve. (2)   Disconnect   the   throttle   lever   linkage   from the throttle lever. (3)   Disconnect    the    shut-off    valve    electrical connections. (4)   Disconnect   the   pump   cooling   line   to   the check valve elbow, (1, figure 13-24) on the gear pump. (5)   Remove  the  seven  capscrews  securing  the fuel pump to the gear cover. (6)   Install a new gasket (3, figure 13-12) or (12, figure  13-13)  and  attach  a  new  or  repaired fuel pump with the 13-46