Installation Instruction Manual

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 ) 85 7 - 5 2 0 0 F A X (9 1 5 ) 857 - 3 3 4 4
Figure 6 Changing the Advance Stop Bushing.
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 advance components including the 
springs, weights and the advance stop bushing 
from the advance assembly.
2.  Removethe roll-pin from the shaft retaining sleeve 
and slide the shaft up. 
3.  Rotate the shaft 180° and insert the advance stop 
bushing pin into the small hole on the advance 
plate (Figure 7).
4.  Install the locknut and washer to the advance stop 
bushing pin. This locks the advance in place.
5.  Install the retaining sleeve and its roll-pin.
Figure 6  Locking Out the Centrifugal Advance.
Figure 7 Locking Out  the Advance.
Figure 5 Advance Stop Bushing Chart.
BUSHING SIZE APPROXIMATE
CRANKSHAFT
DEGREES
Red-Smallest  28
Silver  25
Blue  21
Black-Largest  18