Illustration 15 g01097214
Rear and right side view of the 404C-22T Engine
(19) Fuel injector
(20) Fuel return line
(21) Lifting eye
(22) Fuel injection lines
(23) Mechanical fuel shutoff
(24) Fuel injection pump
(25) Fuel control lever
(26) Engine oil level gauge
(27) Engine oil filter
(28) Engine oil cooler
(29) Flywheel
(30) Flywheel housing
(31) Fuel transfer pump
(32) Fuel shutoff solenoid
(33) Air inlet elbow
i02801121
Engine Description
The 400 series engines are diesel engines that are
controlled with a mechanically actuated fuel injection
pump. The engine cylinders are arranged in-line.
The cylinder head assembly has one inlet valve and
one exhaust valve for each cylinder. Each cylinder
valve has a single valve spring.
The pistons have two compression rings and an oil
control ring. It is important to ensure the correct
piston height so that the piston does not contact the
cylinder head. The correct piston height also ensures
efficient combustion of fuel that is necessary in order
to conform to requirements for emissions.
The crankshaft for a two cylinder engine has two
main bearing journals. The crankshaft for a three
cylinder engine has four main bearing journals. The
crankshaft for a four cylinder engine has five main
bearing journals. End play is controlled by the thrust
washers that are located on the rear main bearing.
18
SEBU7992-05
Product Information Section
Engine Description
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