2-09
Ignition System
2-09
4.
Install the cam assembly. Be sure that the marked spring
Installation
1.
Install the spark plugs and torque each plug to specifications.
bracket on the cam assembly is near the marked spring
2.
Connect the spark plug wires.
bracket on the stop plate.
If a new cam assembly is being installed, make sure that the
VACUUM ADVANCE UNIT
cam is installed with the hypalon covered stop in the correct cam
Removal
plate control slot. Some distributor stops will not be covered
1.
Remove the distributor cap and rotor.
with the hypalon covering.
The centrifugal advance range
2.
Disconnect the vacuum line.
determines whether or not a hypalon cover is required. This can
3.
Remove the spring clip that secures the diaphragm link to the
be done by measuring the length of the slot used on the old cam
movable breaker plate.
and by using the corresponding slot on the new cam. Some of
4.
Remove the diaphragm unit attaching screws and carefully
the cams will have the size of the slot in degrees stamped near
remove the unit.
the slot. If the wrong slot is used, an incorrect maximum
advance will be obtained.
Installation
Place a light film of distributor cam lubricant (C4AZ19D530-
1.
Position the diaphragm unit on the distributor and hook the
A) on the distributor cam lobes. Install the retainer and the wick.
diaphragm link in position.
Oil the wick with SAE-IOW engine oil.
2.
Install the spring clip that secures the diaphragm link to the
5.
Install the weight springs. Be sure that the marked spring is
movable breaker plate. Install the diaphragm unit attaching
attached to the marked spring brackets.
screws.
6.
Install the plate assembly.
3.
Connect the vacuum line.
7.
Install the diaphragm unit.
4.
Install the rotor and the distributor cap.
8.
Install the primary wire in the distributor. Connect the primary
and condenser wires to the breaker point terminal.
BREAKER PLATE AND SUB-PLATE
9.
Adjust the breaker point gap or dwell as required.
Removal
DISTRIBUTOR
1.
Remove the distributor cap and rotor.
Removal
2.
Remove the breaker point assembly and the condenser.
1.
Remove the air cleaner. Disconnect the primary wire from the
Remove the vacuum diaphragm.
coil.
3.
Working from the inside of the distributor, pull the primary wire
Disconnect the vacuum advance line at the distributor.
through the opening out of the distributor.
Remove the distributor cap.
4. Remove the sub-plate attaching screws and lift the assembly from
2.
Scribe a mark on the distributor body and the cylinder block
the distributor.
indicating the position of the body In the block, and scribe
another mark on the distributor body indicating the position of
Installation
the rotor. These marks can be used as guides, when installing
1.
Place the breaker plate assembly in position In the distributor.
the distributor in a correctly timed engine.
2.
Install the sub-plate hold down screws (the ground wire should
3.
Remove the distributor hold down bolt and clamp. Lift the
be under the sub-plate hold down screw from which it was
distributor out of the block.
removed).
Do not rotate the crankshaft while the distributor is removed, or it
3.
Insert the primary wire in the distributor. Install the breaker
will be necessary to time the engine.
points and the condenser. Connect the primary wire and the
condenser wire to the breaker point terminal. Install the vacuum
Installation
diaphragm.
1.
If the crankshaft was rotated while the distributor was removed
4.
Install the rotor and the distributor cap.
from the engine, it will be necessary to time the engine. Rotate
the crankshaft until No.
I piston is on TDC after the
CAM AND CENTRIFUGAL ADVANCE WEIGHTS
compression stroke. Align the TDC mark on the timing pointer
Removal
with the timing pin on the crankshaft damper. Position the
1.
Remove the breaker plate and sub-plate from the distributor.
distributor in the block with the rotor at the No. I firing position.
2.
Mark one of the distributor weight springs and its brackets. Also
Make sure the oil pump intermediate shaft properly engages
mark one of the weights and its pivot pin.
the distributor shaft. It may be necessary to crank the engine
3.
Carefully unhook and remove the weight springs.
with the starter, after the distributor drive gear is partially
4.
Lift the lubricating wick from the cam assembly. Remove the
engaged to engage the oil pump intermediate shaft.
cam assembly retainer and lift the cam assembly off the
Install, but do not tighten, the retaining clamp and bolt.
distributor shaft. Remove the thrust washer.
Rotate the distributor to advance the timing to a point where the
5.
Remove the weight retainers and lift the weights out of the
breaker points are just starting to open. Tighten the clamp.
distributor.
2.
If the crankshaft has not been moved, position the distributor in
the block with the rotor aligned with the mark previously scribed
Installation
on the distributor body and the marks on the distributor body and
1.
If the weights were removed, fill the grooves in the weight pivot
cylinder block in alignment.
pins with distributor cam lubricant (C4AZ19D530-A).
3.
Install the distributor cap.
Position the weights in the distributor (the marked weight is placed on
4.
Connect the primary wire to the coil.
the marked pivot pin) and install the weight retainers.
5.
Check the ignition timing with a timing light and adjust to
2.
Place the thrust washer on the shaft.
specifications. Connect the vacuum line. and check the
3.
Fill the grooves in the upper portion of the distributor shaft with
advance with the timing light when the engine is accelerated.
distributor cam lubricant (C4AZ-19D530-A).
6.
Install the air cleaner.
