MSD 8389 Chrysler 392 Ready to Run Distributor Installation - Manual (Page 5)

INSTALLATION INSTRUCTIONS 5
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
1. Remove the existing distributor cap without
disconnecting any of the spark plug wires.
2. With the cap off, crank the engine until the
rotor is aimed at a fixed point on the engine or
firewall. Note this position by making a mark
(Figure 9).
3. Place the distributor cap back on and note
which plug wire the rotor is pointing to. MARK
THE SPARK PLUG WIRES and remove the
distributor cap.
4. Disconnect the wiring from the distributor.
5. Loosen the distributor hold down clamp,
slide the clamp out of the way and lift the
distributor out of the engine.
6. Install the new O-ring and install the new
distributor making sure that the rotor
comes to rest pointing at the fixed mark.
If the distributor will not fully seat with the
rotor pointing to the marked position, you
may need to rotate the oil pump shaft until
the rotor lines up and the distributor fully
seats.
7. Position and tighten the hold down clamp
onto the distributor.
8. Install the distributor cap and spark plug
wires one at a time to ensure correct
location. An optional wire retainer is
supplied to secure the wires in place. Align
the mounting bosses and use the supplied
1.5" self-tapping Phillips screws to hold the
retainer in place.
9. Page 8 shows how to set the rev limiter
and connect the tachometer.
Figure 9 Marking the Rotor Location.
INSTALLING THE DISTRIBUTOR
Figure 10 Optional Installation by Bolting Cap Down.
Installation Option: This Cap can also be
bolted down to an MSD Pro-Billet or Billet
Distributor base with the supplied hardware.
To accomplish this, the spring clips must be
cut off (Figure 10).
Note: When the cap is bolted down, the
location of the spark plug wires must
be changed.