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PART 9-2-DUAL ADVANCE DISTRIBUTORS
9-23
the diaphragm link to the movable
breaker plate. Disconnect the dia-
phragm assembly from the distribu-
tor housing. Lift the diaphragm link
off the pin and remove the dia-
phragm assembly.
5. Working from the inside of the
distributor, remove the primary (or
distributor-transistor lead) wire by
pulling it through the opening in the
distributor.
6. Remove the two retaining
screws and lift the entire breaker
plate assembly out of the distributor
housing.
7. Lift the lubricating wick out of
the cam. Using needle nose pliers,
remove the cam retainer and lift the
cam off the distributor shaft.
8. Lift the upper thrust washer off
the distributor shaft. Carefully un-
hook and remove the distributor
weight springs. Mark each spring
and the adjusting bracket to which
it is attached. Lift the weights out
of the housing.
DIAPHRAGM AND BREAKER
PLATE ASSEMBLY
1. Remove the vacuum connection
and gasket, then remove the calibrat-
ing washers, return spring and stop.
2. Remove the retaining screw and
lift the condenser (if so equipped)
off the breaker plate (Fig. 1) .
3. Remove the retainer and wash-
ers securing the movable breaker
plate to the stationary sub-plate.
ASSEMBLY
DIAPHRAGM AND BREAKER
PLATE ASSEMBLY
1. Install the breaker point as-
sembly on the breaker plate. Position
a new condenser (if so equipped)
and secure it in place with the re-
taining screw.
2. Install the stop, return spring
and calibration washers, then posi-
tion a new gasket on the vacuum
connection. Install and tighten the
vacuum connection.
INSTALLATION OF
COMPONENTS
1. Install the weights in the hous-
ing, then install the distributor weight
springs on the adjusting brackets
from which they were removed. In-
stall the upper thrust washer on the
distributor shaft.
2. Fill the grooves in the upper
portion of the distributor shaft with
distributor cam lubricant. Position
the cam on the distributor shaft and
install the cam retainer. Apply a
light film of distributor cam lubri-
cant to the cam lobes. Install the
wick in the cam assembly. Saturate
the wick with SAE 1 OW engine oil.
3. Position the stationary sub-
plate in the distributor. Install one
end of the ground wire under the
plate retaining screw closest to the
diaphragm mounting flange.
4. Position the entire breaker plate
\EJ
REMOVAL AND INSTALLATION
REMOVAL
1. On a conventional ignition sys-
tem, disconnect the primary wire at
the coil. On a transistor ignition
system, disconnect the distributor-
transistor lead from the quick dis-
connect. Disconnect the vacuum ad-
vance line at the distributor. Re-
move the distributor cap.
2. Scribe a mark on the distribu-
tor body and engine block indicating
the position of the body in the block,
and scribe another mark on the dis-
tributor body indicating the position
of the rotor. These marks can be
used as guides when installing the
distributor in a correctly timed en-
gine.
3. Remove the distributor hold
down cap screw and clamp. Lift the
distributor out of the block.
INSTALLATION
The
distributor
installation
is
shown in Fig. 2.
1. If the crankshaft was rotated
while the distributor was removed
from the engine, it will be necessary
to time the engine. Rotate the crank-
shaft until No. 1 piston is on TDC
(after the compression stroke) . Align
the TDC mark on the timing pointer
with the timing pin on the crank-
shaft damper. Position the distribu-
tor in the block with the rotor at
the No. 1 firing position.
Make sure the oil pump inter-
mediate shaft properly engages the
distributor shaft. It may be neces-
sary to crank the engine with the
starter, after the distributor drive
gear is partially engaged, in order
assembly in the distributor housing
and secure in place on the sub-plate
by installing the washers and re-
tainer. Be sure the protruding
edges of the spring washer are
facing upward.
5. Attach the ground wire to the
breaker point attaching screw far-
thest from the breaker point adjust-
ment slot. Working from inside the
distributor housing, pass the primary
or distributor-transistor lead wire
assembly through the opening in the
distributor body. From outside the
distributor, pull the wire through the
opening until the locating stop is
flush with the inside of the distribu-
tor.
6. Connect the condenser wire (if
so equipped) and the primary or dis-
tributor-transistor lead wire to the
breaker points.
7. Position the diaphragm assem-
bly and hook the diaphragm link
over the pin on the breaker plate.
Install the diaphragm assembly re-
taining screws. Secure the diaphragm
link with a spring retainer.
8. Adjust the breaker point spring
tension, align the breaker points and
adjust the breaker point gap. Check
the breaker point dwell and resist-
ance. Check the centrifugal and
vacuum advance (refer to "Dis-
tributor Tests").
9. Install the rotor and distributor
cap.
10. Connect the primary or dis-
tributor-transistor wir"e.
FIG.
2-Distributor
Installation
to engage the oil pump intermedi-
ate shaft.
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