Chevrolet Corvette 1963 Repair & Tune-Up Manual page 76

sembly). If the internal teeth of the pickup
are not fully exposed; remove the magnetic
shield from the pickup assembly (three at-
taching screws). Remove the pickup assem-
bly retaining ring and remove the pickup
components (magnet, pole piece, pickup coil).
8. Remove the vacuum advance unit, if so
equipped.
ASSEMBLY
Assembly of the distributor is the reverse of
its respective disassembly procedure.
When assembling the distributor, be sure
to lubricate the distributor shaft bushings with
a few drops of engine oil. Also be sure that
the distributor shaft turns freely after it is in-
stalled. On conventional, point-type distrib-
utors, it is easier to install and gap the points
while the distributor is removed.
On H.E.I, systems, apply a light coating of
silicone dielectric compound to the distribu-
tor housing in the module mounting area be-
fore installing the module. The silicone com-
pound is used to transfer heat from the
module to the distributor housing. If the
compound is not used, the module will ov-
erheat, causing failure of the ignition system.
NOTE: Silicone compounds are available
strictly for this purpose—DO NOT use a
regular silicone lubricant or sealer. Refer to
the previous middle replacement procedure
for additional module installation
information.
RELAY TERMINAL »
/
Externally regulated Delcotron—except "perforated case" models
ENGINE AND ENGINE REBUILDING
" TERMINAL
F
"ORD" TERMINAL
Alternator
The alternating current generator (alternator)
supplies a continuous amount of electrical
energy at all engine speeds to keep the bat-
tery fully charged. The Corvette, as all other
GM vehicles, uses a Delcotron alternator.
Delcotron is a trade name of the Delco-de-
signed alternator.
The alternator consists of four main assem-
blies: drive (pulley) end frame, slip ring (rear)
end frame, stator, and rotor. The drive end
frame houses a ball bearing which is used to
support the front of the rotor and is large
enough to withstand the side loads imposed
on the rotor by the alternator belt. The slip
ring end frame uses a small roller bearing
which is used to support the rear of the rotor
(The "perforated case" Delcotron uses a ball
bearing in the rear, also). These bearings are
lubricated during their assembly and need no
additional lubrication. If you replace the
bearings, try to obtain a fully sealed bearing
for the front, to further increase bearing life.
The stator has a laminated core which is
attached to the frame of the alternator. On
"perforated case" models, the stator is ser-
viced with the main case. A large number of
windings cover the inside diameter of the sta-
tor, and it is within this circle that the rotor
turns. Current passes from two brushes
through the slip rings (of the rotor) and finally
to the field coils which are wound in a man-
ner concentric to the rotor shaft.
SUP RING
THRU
BRUSH AND gOLT -*
TERMINAL ASSEMBtY
SUP RINGS
BEARING-/
DIODES
ROTOR
END FRAME
71
DRIVE END
BEARING
FRAME