TM 5-3895-373-34 1.11 DIESEL ENGINE. The    diesel    engine    is    Perkins    model    T4.236    turbo- supercharged, liquid-cooled, four-stroke cycle, vertical in- line four cylinder, with overhead valves.  The engine has a    236.0    cubic    inch    (3,86    l)    displacement    with    a horsepower rating of 102 bhp (76 kW) at 2600 rpm.  The engine  has  a  direct  fuel-injection  system  and  a  24  volt electric starter. The turbosupercharged engine increases    the    power    output    rating    by    26%,    and    is configured with piston cooling jets.  The engine provides the power required to operate the paving machine. The engine main components are identified and located, as shown. a. Turbosupercharger: The turbosuper- charger   is   located   on   the   right   side   of   the   engine, mounted  on  the  engine  exhaust  manifold  outlet,  and  is connected to the air intake manifold. The turbosupercharger  is  lubricated  by  engine  oil.    The  air intake  manifold  draws  air  into  the  diesel  engine  turbo- supercharger. b. Air Intake Manifold:  The air intake manifold is located on the right side of the engine, mounted on the cylinder head air intake and connected to the turbosupercharger. c. Water  Pump:    The  water  pump  is  located on  the  front  face  of  the   engine   block,   mounted   on   a vertical outlet behind the fan assembly.  The water pump circulates coolant through the engine  and  radiator.    The water  pump  is  a  centrifugal,  impeller-driven  unit.    It  is linked    to    the    fan    assembly    and    has    self-lubricating bearings.        An    external    bypass    system    is    used    on turbosupercharged engines. d. Radiator Fan Assembly:  The fan assembly is  located  on  the  front  of  the  engine,  mounted  on  the water pump pulley.  The fan has six blades for maximum air cooling circulation. e. Alternator:  The alternator is located on the right  side  of  the  engine,  mounted  on  the  belt  adjusting arm  and  a  support  bracket.    The  alternator  operates  at 24  volts  DC  and  is  negative-grounded.    The  alternator has   an   open,   ventilated   enclosure   and   a   fan   on   the alternator    pulley    for    air    circulation    through    the    unit. Operating amperage for the alternator is 45 amps. f. Starter:   The  24  V  starter  is  located  on  the right side of the engine, mounted on the forward side of the flywheel housing.  The starter  operates  on  a  24  volt DC current drawn from two batteries wired in series.  The starter has a maximum current rating of 900 amps.  The drive    pinion    assembly    is    self-indexing    to    ensure    a smooth    engagement    between    the    bendix    and    the flywheel spur gear teeth before the starter motor begins to turn. g. Fuel Lift Pump:  The fuel lift pump is located on  the  right  side  of  the  engine,  mounted  on  the  engine block below the turbosupercharger.  The fuel lift pump is an eccentric-on-camshaft type.  The fuel lift pump draws fuel from the fuel tank and sends it through the fuel filter to the fuel injection pump and turbosupercharger. 1-4