Hudson 1955 Rambler, Техническое и сервисное руководство

Страница: 23 / 292

In the event the engine crankshaft was not
moved, replacement of the oil pump presents
no problem. However, if the crankshaft was
moved, the following procedure can be used
to insure basic distributor timing location
inasmuch as the distributor is driven by the
oil pump shaft.
Crank the engine until the No. 1 cylinder
piston is on T.D.C. exhaust stroke and No. 6
is on T.D.C. in firing position.
Install Aligning Tool J-2794 so that the
guide pin indexes with the distributor
mounting screw hole (Fig. 50).
FIGURE 50— Oil Pump Shaft Aligning Tool
Install the oil pump, indexing the slot
in the pump shaft with the tang on aligning
tool, and push out the tool.
Install distributor with rotor aligned
with terminal in distributor cap which leads
to No. 6 cylinder spark plug.
"Rambler" Series
The oil pump is mounted on the right hand
side of the cylinder block. It is of the
positive displacement gear type.
The oil pump is driven off of a gear cut
on the camshaft and in turn drives the
distributor by means of an off-set tang which
is part of the oil pump main shaft. Oil is
drawn from the oil pan reservoir through a
fixed inlet screen assembly to the intake
side of the oil pump. The oil is discharged
under pressure past a relief valve in the
main oil gallery and then through holes
drilled through the main bearing webs to the
crankshaft and camshaft main bearing loca-
tions. The crankshaft drillings provide
lubrication from the main bearings to the
connecting rod bearings. The front camshaft
bearing permits oil to flow onto the timing
gear and chain assembly.
The valve tappets and piston pins are
lubricated by crankshaft oil "throw-off" and
vapors.
CAUTION: Always maintain a tight
connection between the oil pump inlet
flange and oil inlet hole located on
the right side at the bottom of the
cylinder block
1. Screen and Retainer 9. Idle Gear
2. Bolt 10. Key
3. Inlet Tube Gasket 11. Oil Pump Drive Shaft
4. Bolts 12. Oil Pump Idle Shaft
5. Cap Screws 13. Oil Pump Body
6. Oil Pump Cover 14. Oil Pump Drive Gear Pin
7. Gasket 15. Thrust Washer
8. Drive Gear (In Pump) 16. Oil Pump Drive Gear
FIGURE 51— Oil Pump "Rambler" Series
The position of the oil pump drive gear
keyway should be noted before removal of oil
pump. Installing in the same location will
prevent disturbance of distributor timing.
In the event the crankshaft has been moved,
crank the engine until No. 1 cylinder is at
T.D.C. in firing position. The keyway will
be located at approximately the three-thirty
o'clock position, viewed from the lower
section of the pump body.
Oil Pressure Relief Valve
The oil pressure relief valve consists of a
plunger, spring, and retainer.
The valve is located on the left side of
the cylinder block on the "Hornet" and "Wasp"
Series and the right side of the cylinder
block on the "Rambler" Serieas.
The oil pressure relief valve is not
adjustable. A setting of 40 P.S.I. for the
"Hornet" and "Wasp" Series and 50-58 P.S.I.
for the "Rambler" Series is built into the
tension of the spring.
1. Housing Plug 3. Spring
2. Gasket 4. Plunger
FIGURE 52— Oil Pressure Relief Valve
"Rambler" Series
20
T E C H N I C A L S E R V I C E M A N U A L