Cadillac 60 Series 1963 Shop Manual page 203

9-10
ENGINE MECHANICAL
CAUTION; Before installing seal in cover,
MAKE SURE IT IS STRAIGHT, to avoid dam-
aging seal and cover.
5. Using a plastic hammer, drive seal into
front cover until it bottoms against shoulder in
bore, Fig. 9-10.
6. Install front cover as described in Note 2b.
5. Oil Pump Assembly-
Removal and Disassembly
The oil pump housing is an integral part of the
engine front cover. Whenever the oil pump hous-
ing components require service, the engine front
cover must be removed from the engine.
a. Removal
1. Remove engine front cover as described in
Note 2a.
b. Disassembly, (Fig. 9-9)
1. Remove four cap screws that hold pump
cover plate to pump housing and remove cover
plate and gasket. Discard gasket.
CAUTION: Be careful pump gears do not
fall out of housing when cover plate is removed.
2. Slide drive shaft and gear out of pump
housing.
3. Slide driven gear out of pump housing.
4. Remove hex head plug from pump cover
plate and remove oil pressure regulator valve and
spring from bore in cover plate.
6. Oil Pump Assembly—Inspection
Assembly and Installation
a. Inspection
1. Inspect oil pressure regulator valve for
nicks and burrs that might cause a leak or binding
condition in bore in pump cover plate.
2. Check free length of regulator valve spring.
It should be approximately 2.77 inches to 2.89
inches in length. A force of 6-1/4 to 6-3/4 pounds
should be required to compress the spring to
1-7/16 inches.
3. Inspect drive gear and driven gear for nicks
and burrs.
4. Inspect pump housing and pump cover plate
for wear and score marks.
b. Assembly, (Fig. 9-9)
1. Install oil pressure regulator valve and
spring in bore in pump cover plate.
2. Install hex head plug with copper washer on
cover plate, and tighten plug to 25 foot-pounds.
3. Install pump drive shaft and gear in pump
housing.
4. Slide driven gear over stationary shaft in
pump housing, meshing driven gear with drive
gear.
5. Install pump cover plate on pump housing,
using new gasket, and secure with four attaching
cap screws. Tighten screws to 5 foot-pounds.
c. Installation
1. Install engine front cover as described in
Note 2b.
CAUTION: Before installing oil filter as-
sembly, fill oil passages in filter support
bracket with engine oil. This will allow oil
pump to prime itself when engine is started.
7. Cylinder Head Removal
1. Disconnect positive battery cable.
2. Remove carburetor air cleaner.
3. Drain coolant from radiator and cylinder
block.
4. If car is equipped with Air Conditioner, par-
tially remove compressor as described in Section
13, Note 29a.
5. Disconnect vacuum hose and both heater inlet
hoses from water control valve, if right cylinder
head is to be removed.
6. Remove cap screw that holds transmission
filler tube bracket to exhaust manifold, if right
cylinder head is to be removed.
7. Remove generator as described in Section
12, Note 34.
8. Remove power steering pump with bracket
from cylinder block and position pump and bracket
to one side, if left cylinder head is to be removed.
Do not disconnect hoses. On cars equipped with
Cruise Control, disconnect accelerator linkage
rod at control unit.
9. Disconnect wire from temperature indicator
switch, and remove engine oil dipstick, if left cy-
linder head is to be removed.