Engine Code Information; Crankshaft; Valve Train; Camshaft - Ford LRG-423 Service Manual

02-4
Engine Service, 2.3L 02-4
DESCRIPTION AND OPERATION (Continued)
Engine Code Information
The engine code information label, located on the
timing belt cover, provides the engine build date,
engine plant code and engine code as well as other
data.
OUTER TIMING
BELT COVER
6019
FRONT OF ENGINE
PPDA23921 -P
ENGINE CODE
\
ENGINE PLANT CODE
MADE IN LIMA,OtiIO
L - LIMA
ENGINE BUILD DATE
A24340-A
Crankshaft
The crankshaft (6303):
l
is made from precision cast nodular iron.
l
has five main bearings so each connecting rod is
between two main bearings.
l
thrust is taken on the center main bearing to control
end play.
l
has a crankshaft damper consisting of a cast iron
hub, pulley and internal ring with rubber
compressed between them to help control torsional
vibration.
l
the crankshaft damper also has an integral pulse
wheel which provides timing information to the
crankshaft position sensor (6C315) mounted in the
engine front cover (6019).
PULSE WHEEL
(PART CRANKSHAFT
PULLEY)
CRANKSHAFT DAMPER
(FACE DOWN)
6312
/
GAP IN TEETH
(PROVIDES POSITION
REFERENCE FOR
NUMBER ONE PISTON
A239960A
Camshaft
The camshaft (6251) operates the engine valves and:
l
Is located in the cylinder head (6049).
l
Is supported by four bearings which are pressed
into the cylinder head.
l
Has end play controlled by a combination thrust
and retainer plate which bolts to the rear camshaft
bearing support.
l
Is driven by a cogged timing belt which runs off the
crankshaft and also drives the engine oil pump
(6600).
Valve Train
The valve train consists of:
l
Roller finger follower arms.
l
Hydraulic lash adjusters.
Camshaft motion is transmitted through the rollers in
the finger follower arms to the engine valves.
The lash adjusters provide the finger follower fulcrum
point and automatically adjust valve lash for silent
operation.