
This document is printed from SPI². Not for RESALE
16
SEBU8311-02
Product Information Section
Model Views
g01305224
Illustration 12
Front and left side view of the 404D-22T Engine
(13) Top engine oil
fi
ller cap
(14) Crankcase breather
(15) Rear Lifting eye
(16) Air inlet elbow
(17) Valve mechanism cover
(18) Turbocharger
(19) Water temperature regulator housing
(20) Starting motor solenoid
(21) Electric starting motor
(22) Alternator
(23) Engine oil pan
(24) Engine oil drain plug
(25) Fan drive belt
(26) Crankshaft pulley
(27) Coolant temperature switch
(28) Cooling fan
i02959055
Engine Description
The 400 series engines are indirect injection engines.
The engines 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
ef
fi
cient 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
fi
ve main
bearing journals. End play is controlled by the thrust
washers that are located on the rear main bearing.