Dodge ram truck 3500 1996 Service Manual page 1156

9 - 166 5.9L (DIESEL) ENGINE
DESCRIPTION A U D OPERATION {Continued)
BR
LUBRICATING
OIL COOLER
FULL FLOW
FILTER
dm
FILTER
BYPASS
VALVE
TURBOCHARGER
LUBRICATION
TO FILTER
'CLOSED OPEN
FROM
PUMP
TO OIL
PAN
i
^ TO COOLER
PRESSURE
REGULATING
VALVE
MAIN OIL
RIFLE
GEROTOR
LUBRICATING
OIL PUMP
FILTER BYPASS
VALVE
J9509-76
Fig. 4 Lubricating System Passages
OIL PRESSURE REGULATOR-VALVE .
When oil pressure from the oil pump exceeds 448
kPa (65 psi), the regulator valve opens to allow oil to
drain back into the pan.
TIMING PIN
The timing pin is used for three different proce­
dures:
• Valve adjustment
• Top Dead Center (TDC) location
• Fuel injector pump timing procedure
S E R V I C E P R O C E D U R E S
OIL FILTER
When replacing the oil filter, use replacement filter
specified in your Operator's Manual.
CAUTION: The internal filtering medium of some
filters has been known to disintegrate. Debris from
failed filters may plug the piston oil cooling noz­
zles, resulting in scuffed pistons and eventual
engine failure.