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Fig.  3  Right Rear View of Engine
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Fig.  5  Diagrammatic View of Lubricating System
ENGINE DIVISION SERVICE MANUAL TM 5-4210-230-14&P-1 ENGINE 1, 3, 5 and 7 with No.  1 being at the front.  The right and left sides of "V" engines with cylinders numbered in the foregoing manner  are  sometimes  referred  to  as  "even  bank"  and  "odd bank."      The   "odd"   or   "even"   refers   to   the   numbers   of   the cylinders.  For easy reference each cylinder number is cast on the intake manifold directly over its respective. cylinder.  The firing  order  is  1-2-7-3-4-5-6-8.    This  information  is  also  cast on the top surface of the intake manifold. Two   "V"   type   fan   belts   driven   by   a   pulley   on   the crankshaft     drive     the     water     pump-fan     combination     and alternator   while   another   "V"   type   belt   driven   by   the   water pump pulley drives the air compressor. The  water  pump  is  mounted  on  the  front  of  the  engine  and supplies  both  cylinder  banks.    The  alternator  is  mounted  on the right side of the engine with an adjustable strap to set the proper belt tension. A  gear-type  oil  pump  is  internally  mounted  to  the  bottom  of the   crankcase   and   is   driven   by   a   tang   on   the   end   of   the distributor shaft.  The distributor, mounted in the front end of the  cylinder  block  assembly,  is  gear  driven  directly  by  the camshaft resulting in reduced spark fanning. NOTE:  When timing the engine, attach the timing  light  to  the  No.    1  spark  plug  and adjust  distributor  to  obtain  proper  initial timing; see specifications and Figure 4. ENGINE LUBRICATION SYSTEM The oil pump is located in the left front corner of the oil   pan.      The   pump   is   driven   from   an   extension   on   the distributor  which  is  gear  driven  from  the  camshaft.    It  draws oil    from    the    oil    pan    sump    through    a    screen    and    tube assembly.  The oil pump contains an internal bypass set at 50 psig.    The  oil  is  filtered  only,  or  cooled  and  filtered,  before entering   the   crankcase.      Filter   and   cooler   contain   bypass systems   which   allow   oil   to   bypass   them   in   the   event   that either or both become plugged. Fig.  4  Illustrating Timing Marks on Crankshaft Pulley Hub and Engine Front Cover 1. Timing mark 2. T.D.C. From the filter, oil feeds the main oil gallery which is cross-drilled five places.  The cross-drilling intersects vertical drilling which feeds the main bearings and camshaft bearings. The    front    cross-drilling    intersects    two    additional    vertical drillings    to    provide    full-main    oil    gallery    pressure    to    the individual tappet gallery.  Oil is metered through the tappets, up the push rods, across the rocker arms and onto the valve tips.    A  front  cam  shaft  thrust  plate  meters  oil  forward  to lubricate  the  camshaft  drive  gear,  distributor  gear  and  fuel pump cam.  Oil returns to the oil pan through drilled holes at the  front  and  rear  of  the  cylinder  head.    These  holes  match with  holes  in  the  crankcase  to  provide  passage  through  the crankcase into the oil pan. CGES-210  Page 5 PRINTED IN UNITED STATES OF AMERICA

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