MSD 8384 Ford 351W Dual Pickup Distributor Installation - Manual (Page 4)

4 INSTALLATION INSTRUCTIONS
AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344
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 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.
BUSHING SIZE APPROXIMATE
CRANKSHAFT
DEGREES
Red-Smallest 28
Silver 25
Blue 21
Black-Largest 18
Figure 8 Locking Out the Centrifugal Advance.