PN8594 Datasheet, PDF (4/8 Pages) Mallory performance club – MSD Pro-Billet Distributor

4
SELECTING THE ADVANCE STOP
BUSHING
Five different advance stop bushings are supplied
in the distributor kit. The distributor comes with a
Blue (21°) bushing already installed. If a different
amount of centrifugal advance is desired, follow the
next procedure to change the bushings. The chart
in Figure 5 gives the size and approximate degrees
for the corresponding bushings.
CHANGING THE ADVANCE STOP
BUSHINGS
1. Remove the distributor cap and rotor.
2. Remove the locknut and washer on the bottom
of the advance assembly (Figure 6).
3. Remove the bushing and install the new one.
Install the washer and locknut.
INSTALLATION INSTRUCTIONS
BUSHING SIZE
Red-Smallest
Silver
Green
Blue
Purple
Black-Largest
APPROXIMATE
CRANKSHAFT
DEGREES
28
25
23
21
19
18
Figure 5 Advance Stop Bushing Chart.
LOCKING OUT THE ­CENTRIFUGAL
ADVANCE
1. Remove the advance components including the
springs, weights and the advance stop bushing
from the advance assembly.
2. Remove the roll-pin from the shaft retaining
sleeve and slide the shaft two inches out of the
housing (Figure 7).
3. Rotate the shaft 180° and insert the advance
stop bushing pin into the small hole on the
advance plate (Figure 8).
4. Install the locknut and washer to the advance
stop bushing pin. This locks the advance in
place.
5. Install the drive gear and roll-pin.
Figure 6 Changing the Advance Stop Bushing.
Figure 7 Removing the Retaining Sleeve.
   
Figure 8 Locking Out the Advance.
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