Cadillac 60 Series 1963 Shop Manual page 212

ENGINE MECHANICAL
9-19
36. Install generator as described in Section 12,
Note 37, if right cylinder head was removed.
Adjust generator belt as described in Section 12,
Note 39.
37. If right cylinder head was removed, connect
vacuum hose and both heater inlet hoses to water
control valve. Secure front heater inlet hose to
retainer clamp on right rocker arm cover.
38. Install transmission filler tube bracket on
exhaust manifold and secure with attaching screw,
if right cylinder head was removed.
39. Connect wire to temperature indicator unit
and install engine oil dipstick, if left cylinder
head was removed. On cars equipped with Cruise
Control, connect accelerator linkage rod to con-
trol unit.
40. Install power steering pump and bracket
on cylinder block and secure with two attaching
screws, if left cylinder head was removed. Ad-
just power steering pump belt as described in
Section 5, Note 3.
41. If right cylinder head was removed on cars
equipped with Air Conditioner, install compressor
as described in Section 13, Note 29b. Adjust
compressor belt as described in Section 13,
Note 30.
42. Install carburetor air cleaner.
43. Connect positive battery cable.
44. Fill cooling system, using anti-freeze as
necessary, also add inhibitor and sealer.
45. Operate engine to normal operating temper-
ature and re-torque rocker arm cover screws.
Check for coolant and oil leaks at all connections.
14. Valve Lifters—Noisy Operation
Noisy operation of valve lifters may be due to:
a. Incorrect Oil Level in Crankcase
Oil level should never be above, nor more than
a quart below "Full" mark on indicator. If level
is too high foaming may result. If too low, air
may enter pump inlet. In either case, noisy valve
action may result.
b. Improper Oil Pressure
If valve action is noisy after the oil is hot, it
may be due to low oil pressure.
Low pressure usually results from an external
leak in the engine lubrication system, a stuck or
improperly operating oil pressure relief valve,
scored parts, worn bearings, worn oil pump
gears, clogged oil intake strainer screen assem-
bly, or poor operation of oil pump.
c. Rusty or Varnished Valve
Stems or Valve Guides
This condition may be associated with short
trip operation, poor quality engine oil, or failure
to change oil regularly.
d. Weak Valve Lifter Springs
These can cause noisy valve operation by caus-
ing sluggish plunger movements in the cylinder.
To check these springs, disassemble plunger
assembly, clean thoroughly and reassemble.
Check pressure to compress spring with lifter
dry.
If pressure required to compress spring 11/32
inch is less than 6-1/4 pounds, the assembly
should be replaced.
e. Dirty, Worn, or Scored Valve Lifter Parts
A recurring tap or click, synchronized with
valve action, indicates trouble in a single lifter
assembly, which should be disassembled and
checked for:
1. Dirt or foreign particles, which can be re-
moved after disassembly by wiping with a soft
cloth and washing in kerosene.
2. Varnish or heavy sludge material, which
can be removed by the use of a proper solvent.
NOTE: The engine oil pan should always
be removed and cleaned when dirt has been
responsible for sticking lifters. The oil pas-
sages from the header to the lifter bores should
also be cleaned thoroughly by blowing out with
kerosene and air.
3. Pitting and scoring of surfaces, which may
result from gritty particles, excessive wear,
poor grade oil, or damage during installation.
This condition requires replacement of the com-
plete unit.
4. Incorrect clearance between cylinder and
plunger, usually caused by mismating of parts.
These parts are selectively fitted in manu-
facturing and are not interchangeable, Fig. 9-19.
f. Lifters That Do Not Turn In Their Bores
Scoring, surface flakings, cupping or excessive
wear on the bottom of the lifter may prevent the
lifters from turning in their bores.
g. Excessive Wear on Either
End of Rocker Arm
or at Rocker Shaft
h. Worn Valve Stems or Pui,h Rods
i. Worn Camshaft Lobes