83873 Datasheet, PDF (5/8 Pages) Mallory performance club – MSD Pro-Billet Ready-to-Run Chrysler V8 Distributor

INSTALLATION INSTRUCTIONS
5
INSTALLING THE DISTRIBUTOR
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.
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 supplied O-ring seal in the groove
on the distributor land. Apply a thin layer
of oil to the housing O-ring.
7. Install the distributor making sure that the
rotor comes to rest pointing at the fixed
mark. If the distributor will not fully seat with
Figure 9 Marking the Rotor Location.
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.
8. Position and tighten the hold-down clamp onto the distributor.
9. Install the rotor and distributor cap. It is recommended to use a drop of Blue Loctite on the distributor
cap hold down bolts.
10. Install the spark plug wires from the old cap one at a time to ensure correct location.
11. Connect the supplied wiring harness to the distributor. Route the wires to their connections as
shown in Figure 10.
12. See below how to set the rev limiter and connect the tachometer.
TACHOMETER INFORMATION
The MSD Ready-to-Run has a Gray wire that provides a 12 volt square wave, 20° duty cycle tachometer
signal that will trigger most tachometers. It is recommended to connect this lead to your tach’s trigger
input wire and check its operation. Note that the rpm limiter is extremely accurate and due to the
variety of tachometers available, there may be differences in the displayed rpm.
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