MSD 8523 AMC V8 Ready to Run Distributor Installation - Manual (Page 4)

4 INSTALLATION INSTRUCTIONS
M S D I G N I T I O N
• W W W . M S D I G N I T I O N . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • FA X ( 9 1 5 ) 8 5 7 - 3 3 4 4
Figure 5 Advance Stop Bushing Chart.
Figure 6 Changing the Advance Stop Bushing.
Figure 7 Removing the Retaining Sleeve.
SELECTING THE ADVANCE STOP
BUSHING
Three 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.
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 drive gear and remove
the gear.
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 7).
6. Install the locknut and washer to the advance stop
bushing pin.
7. Install the drive gear and roll-pin.
Figure 7 Locking Out the Centrifugal Advance.
BUSHING SIZE APPROXIMATE
CRANKSHAFT
DEGREES
Red-Smallest 28
Silver 25
Blue 21
Black-Largest 18