83503 Datasheet, PDF (4/8 Pages) Mallory performance club – MSD Pro-Billet Small Diameter Ready-to-Run Ford V8 Distributor

4
INSTALLATION INSTRUCTIONS
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.
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.
     
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.
Figure 6 Changing the Advance Stop Bushing.
LOCKING OUT THE ­CENTRIFUGAL
ADVANCE
1. Remove the cap and rotor.
2. Remove the advance springs, weights and the
advance stop bushing from the advance assembly.
3. Remove the roll-pin from the shaft and slide the
retaining sleeve down. It should not be necessary
to remove the gear (Figure 7).
4. Slide the shaft two inches out of the housing.
5. Rotate the shaft 180° and insert the advance stop
bushing pin into the small hole on the advance
plate (Figure 8).
6. Install the locknut and washer to the advance stop
bushing pin.
7. Install the retaining sleeve and roll-pin.
Figure 7 Removing the Retaining Sleeve.
Figure 8  Locking Out the Centrifugal Advance.
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