All the oil pan bolts should be started
before any are tightened. Bolts should
be tightened snugly but not excessively,
starting with the center bolts and work-
ing toward each end of the oil pan. Ex-
cessive tightening of the bolts will crush
the oil pan gasket unnecessarily.
10. Fill the crankcases to the proper lev-
e l with oil recommended in Section III.
LUBRICATING OIL PRESSURE REGULA-
TOR
Description
Figure 11E-13. Lubricating Oil
Pressure Regulator
Stabilized lubricating oil pressure is
the
engine
at
all
maintained
within
Under normal conditions, the pressure
speeds,
regardless
of
the
oil
regulator should require very little at-
temperature, by an oil pressure regula-
If sludge accumulates in the lu-
tention.
tor installed between the oil pump outlet
brication system, the valve may not work
pipe and the cylinder block.
freely, thereby remaining open or failing
to
open
at
the
normal
operating
The regulator assembly consists of a re-
pressure.
body, a
hollow
piston-type
gulator
valve, a spring and a plug to retain the
Whenever the lubricating oil pump is re-
valve and spring (Figure 11E-12). A die
moved for inspection, the regulator valve
cast lubricating oil pressure regulator
and spring should also be removed, tho-
assembly is used (Figure 11E-13).
cleaned
in
oil
and
fuel
roughly
inspected.
R e m o v e Oil Pressure Regulator
1. Remove the two oil pump outlet pipe to
regulator attaching bolts and lock wash-
ers.
2.
Remove
the
two
regulator
block bolts and lock
body-to-cylinder
washers.
3. Tap the lower end of the regulator
body lightly to loosen the body from the
Remove the
gasket and cylinder block.
Figure 11E-12. Lubricating Oil
gasket.
Pressure Regulator Parts
D i s a s s e m b l e Oil Pressure Regulator
The valve is held on its seat by the
s p r i n g , which is compressed by the plug
1. Clamp the flange of the regulator
threaded into the valve opening in the
body in a bench vise with soft jaws and
The entire assembly is
regulator body.
remove the plug from the body.
bolted to the lower flange of the cylinder
block and sealed against oil leaks by a
2. Remove the spring and valve from the
gasket between the two members. When
regulator body.
t h e o i l pressure at the valve exceeds 50
psi (345 kPa), the valve is forced from
its seat and oil from the engine oil gal-
lery is by-passed to the oil pan.
