Hudson 1953 Super Jet, Руководство по механическим процедурам

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The unit consists of a spring loaded diaphragm
and a set of electrical contact points normally
closed when the engine is not operating. The
closed contact completes a ground connection to
the instrument panel lighting the lamp. When the
oil pump begins to operate, oil pressure breaks the
ground contact, and the lamp goes out.
OIL CHECK VALVE
Oil pressure is maintained by a non-adjustable
oil check valve consisting of a plunger, spring,
plug retainer and plug gasket. The assembly is
located in the left side of the crankcase slightly
below the distributor. Oil pressure against the end
of the plunger and spring forces the plunger off its
seat allowing oil to return to the oil pan, Figure 1.
FIGURE 1
OIL PUMP
The oil pump is of simple construction and
very efficient providing high volume. It is a rotor
type pressure pump. Service is seldom required.
REMOVAL
Care must be exercised to maintain correct
engine ignition timing when it is necessary to
remove the pump for servicing. The recom-
mended procedure is as follows:
1. Lift off the distributor cap and rotate the engine
crankshaft until the distributor rotor is in firing
position for the number
one cylinder. Do not disturb this position of the
engine while the oil pump is removed.
2. Remove the two oil pump to block attaching
screws and remove the oil pump.
FIGURE 2
DISASSEMBLY
1. Remove the cover screws (1), Figure 2, cover
(2) and gasket (3).
2. Hold hand over cover opening and with the
pump upside down, turn shaft until the pump
rotor (4) falls out in the hand.
3. Drive out straight pin (10) which holds
pump drive gear to pump shaft.
4. Press shaft (7) out of gear (9) by supporting the
oil pump body (8) on the cover face in an arbor
press allowing the inner rotor and shaft to clear
when pressing the shaft out of the pump gear.
5. Wash all parts in cleaning solvent and dry
with compressed air.
INSPECTION
1. Install rotors and shaft in pump body with the
inner rotor located so that one lobe of the inner
rotor contacts the corresponding notch in the
outer rotor. Measure the clearance between the
opposite lobe of the inn e r and outer rotor. This
clearance should be .010" or less. If more than
this, replace both rotors and shaft.
2. With rotors and shaft assembled in the pump
body place a straight edge across the pump
body between the screw holes and using a feeler
gauge, measure the clearance between the top
of the rotors an d the straight edge. This clear-
ance should be .004" or less. If the clearance is
greater than this limit, the pump body must be
replaced.
ENGINE 24