FUEL SYSTEM - N.7 Fig. N.11. Checking Timing Mark on Fuel Pump Flange. 5. Connect    No.    1    outlet    of    pump    body    to    an atomiser  test  rig  and  pump  up  to  30  atm  (31 kgf/cm²) or 440 lbf/in². 6. Turn   pump   in   normal   direction   of   rotation   as shown on pump nameplate until it locks. 7. In  this  position,  slide  pointer  forward  until  it  is halfway over pump flange and check that timing mark is central to slot in pointer (see Fig. N.11). Where   no   timing   tool   is   available,   the   fuel   pump timing may be checked as follows:— On  the  fuel  pump  rotor,  inside  the  fuel  pump  are  a number  of  scribed  lines,  each  one  bearing  an  individual letter.    A  timing  circlip  with  a  squared  end  is  positioned inside  the  pump  and  has  to  be  set  so  that  when  the appropriate scribed line on the fuel pump rotor is aligned with  the  squared  end  of  the  timing  circlip;  this  denotes the static point of injection. To  set  the  timing  circlip,  it  is  necessary  to  remove the  pump  from  the  engine  and  fix  the  position  of  the circlip   by   connecting   No.   1   cylinder   outlet   connection (marked  "W")  to  an  atomiser  tester  and  pump  up  to  30 atm (31 kgf,/cm² or 440 Ibf/in²).  Turn the pump by hand Fig. N.12. Timing Marks on Fuel Pump Rotor. in the normal direction of rotation until it "locks up".  The squared end of the circlip should now be adjusted until it lines up with the letter "C" on the pump rotor. To   re-set   the   fuel   timing   the   following   procedure should be adopted:— 1. Ensure   that   the   fuel   pump   circlip   is   correctly positioned as described previously. 2. Ensure  that  the  fuel  pump  is  correctly  fitted  with the scribed line on the mounting flange coinciding   with   the   mark   on   the   back   of   the timing case cover (see Fig. N.9). 3. Position the crankshaft so that No. 1 piston is at T.D.C. on compression stroke. 4. Remove  the  collets,  spring  cap  and  spring  from one of the valves on No. 1 cylinder and allow the valve  to  rest  on  the  top  of  the  piston.    Care  is necessary with this operation as the consequences    of    a    valve    dropping    into    the cylinder need not be described. 5. With the aid of a clock gauge in contact with the end of the valve now sitting on the No. 1 piston it will  be  necessary  to  position  the  crankshaft  so that   the   piston   will   be   at   the   correct   "Static Timing Position" (See Page B.11). 6. Remove  the  inspection  plate  on  the  fuel  pump enabling the rotor to he seen. 7. With No. 1 piston at the static timing point In its compression  stroke,  the  scribed  line  on  the  fuel pump   rotor   marked   “C”   should   align   with   the squared end of the circlip (Refer to Fig. N.12). If   it   does   not,   then   the   necessary   adjustment should   he   made   by   releasing   the   fuel   pump, securing setscrews and turning the fuel pump on the  slotted  holes  the  required  amount  to  bring the  respective  timing  letter  into  alignment  with the squared end of the timing circlip. 8. When  the  fuel  pump  timing  is  correct,  refit  the spring, spring cap and collets to the valve which has been used for the timing check and refit the pump inspection plate and timing case inspection plate.  Re-seal the inspection plate. Maximum Speed Setting IMPORTANT NOTE:  The maximum speed screw seal of   the   original   fuel   pump   must   not   be   broken   or tampered with in any way unless factory authority is first  obtained.    Failure  to  do  so  may  result  in  the guarantee becoming void.