80 ENGINE AND ENGINE REBUILDING
BSUSH HOIDER
GROUND
CONDENSER
MOUNTING SCREW STUD
LEAD
Brush holder—"perforated case" Delcotron
1. Remove the stator lead nut that also
holds the relay terminal connector.
2. Remove the two mounting screws and
the brush holder assembly.
3. When installing the new brush holder
assembly, depress the brushes and insert a
straightened paper clip through the holes
provided in the holder for brush retention.
4. Install the brush holder assembly.
5. Remove the paper clip after the alter
nator is assembled.
For externally regukted models of the
"perforated case type:
If the alternator was disassembled accord-
ing to the previous procedure, just install the
new brush holder during assembly. If the al-
ternator has not yet been disassembled, refer
to steps 1—4 and 12e of the previous Disas-
sembly and Assembly procedure to replace
the brush holder. For internally regulated
Delcotrons:
NOTE:
This procedure also includes re-
Brush holder wiring—"perforated case" Delcotron
placement of the internal voltage regula-
tor.
1. Remove two brush holder screws and
stator lead to strap nut and washer, brush
holder screws and one of the diode trio lead
strap attaching screws.
NOTE:
The insulating washers must be re-
placed in the same position on reassembly.
2.
Remove brush holder and brushes. The
voltage regulator may also be removed at this
time, if desired.
3. Brushes and brush springs must be free
of corrosion and must be undamaged and
completely free of oil or grease.
4. Insert spring and brushes into holder,
noting whether they slide freely without
binding. Insert wooden or plastic toothpick
into bottom hole in holder to retain brushes.
NOTE:
The brush holder is serviced as a
unit; individual parts are not available.
5.
Reassemble in reverse order of disas
sembly.
Voltage Regulator
Three types of voltage regulators have been
used in the Corvette since 1963. The first type
of regulator, hereafter referred to as Type
One, is a double-contact model which is
mounted externally, separately from the al-
ternator. The Type One regulator was used
on most 1963-68 and some 1969 Corvettes.
This regulator is housed in a basically square,
black metal case and has four electrical ter-
minals.
The second type of regulator, hereafter
called Type Two, is a transistorized model
which was offered as an option with the tran-
sistorized ignition system in 1965. The Type
Two regulator is externally mounted and uses:
a) one transistor which assists in limiting the
voltage to a preset value, and b) two diodes
PIN
BRUS
H
Brush holder—Externally regulated Delcotron, ex-
cept "perforated case" models
CONDENSER
LEAD
