19-45D-32 ( Detroit Diesel Engines Series 53 )

Front 1

All engines are equipped with a restrictive fitting in
the fuel outlet manifold to maintain?

Back 1

fuel system
pressure.

Front 2

A check valve may be installed in the supply line
between the fuel tank and the fuel strainer to prevent what?

Back 2

fuel from draining back when the engine is shut down.

Front 3

what are the 4 functions of the fuel injector?

Back 3

1. Creates the high fuel pressure required for efficient
injection.
2. Meters and injects the exact amount of fuel required
to handle the load.
3. Atomizes the fuel for mixing with the air in the
combustion chamber.
4. Permits continuous fuel flow.

Front 4

what does the continuos flow of fuel through the fuel filter provide?

Back 4

preventing air pockets in the fuel
system, and as a coolant for those injector parts subjected
to high combustion temperatures.

Front 5

how is the fuel output of an injector determined?

Back 5

by the helix angle of the plunger and the type of spray tip
used.

Front 6

what does the identification mark (8-.005-165) on the spray tip of an injector stand for?

Back 6

8: the number of spray holes
.005: the size of the holes
165: the angle of the holes.

Front 7

what can occur if injectors of different types are mixed?

Back 7

erratic operation
will result and may cause serious damage to the engine
or to the equipment which it powers.

Front 8

what does the identification tag on an injector indicate?

Back 8

the nominal output of the injector in cubic
millimeters.

Front 9

The injectors used in engines with a four valve
cylinder head require what type of injector body due to the restricted area around the exhaust valve mechanism?

Back 9

an offset injector body.

Front 10

what type of clamp is required with the
offset injector body?

Back 10

narrower injector clamp.