Dodge RAM TRUCK 1500 1995 Service Manual page 1029

1 - 190 5.9L (DIESEL) ENGINE
BR
FILTER
BYPASS
VALVE
OIL COOLER
COVER
J9109-15
Fig. 12 Installing New Filter Bypass Waive
OIL PRESSURE REGULATOR VALVE AND SPRING
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.
REMOVAL
(1) Remove the threaded plug, gasket, spring and
valve (Fig. 13).
PLUG GASKET
[71
SPRING
9
J9109-14
Fig. 13 Oil Pressure Regulator
(2) Check the spring for height and load limita­
tions (Fig. 14). Replace the spring if out of limits.
INSTALLATION
(1) Clean and inspect the plunger, bore and seat
before assembly. The plunger must move freely in the
valve bore.
(2) Install the valve, spring, gasket and plug.
VALVE OPEN
• HEIGHT: 41.25mm (1.62 inch)
• LOAD: 126 N (28.4 lb)
FREE LENGTH: 66mm (2.6 inch)
J9509-161
Fig. 14 Oil Pressure Regulator Spring Check
Tighten the plug to 80 N-m (60 ft. lbs.) torque.
OIL COOLER ELEMENT AND GASKET
The non-intercooled turbocharged engine filter
head/coolers can not be used on intercooled engines.
[REMOVAL
(1) Drain the cooling system (refer to Group 7,
Cooling System for the proper procedures).
(2) Remove the oil filter.
(3) Clean around the oil cooler cover.
(4) Disconnect the turbocharger supply line (Fig.
15).
J9109-17
Fig. 15 Turbocharger Supply Line
(5) Remove the oil cooler cover, gaskets and cooler
element.
CLEANING AND'INSPECTION
Clean the sealing surfaces.
Apply 483 kPa (70 psi) air pressure to the element
to check for leaks. If the element leaks, replace the
element.