PN8680 Datasheet, PDF (1/8 Pages) Mallory performance club – Adjustable Timing Control

Adjustable Timing Control
PN 8680
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IMPORTANT: Read the instructions before attempting installation.
Parts Included:
1 - Timing Control, PN 8680
1 - 3/8" Bushing
4 - Self Tapping Screws
1 - Control Knob
1 - 2-Pin Weathertight Connector
WARNING: During installation, disconnect the battery cables. When disconnecting the battery,
always remove the Negative cable first and install it last.
Note:  The MSD PN 8680 Timing Control must be used with an MSD Ignition Control. It is recommended
to install the MSD Ignition first.
MOUNTING
The Timing Computer may be mounted in the engine compartment as long
as it is away from direct engine heat sources. Make sure all of the wires reach
their connections before mounting the unit. Use the Control as a template
and mark the mounting holes. Remove the unit and drill the mounting holes
using an 1/8" drill bit. Four self tapping screws are supplied to mount the unit.
Note: Before mounting the unit, install the supplied grommets and sleeves
as shown in Figure 1.
PROGRAMMING
The Timing Control is programmed for 8-cylinder. If installing the PN 8680 on
a 4 or 6-cylinder, the Control must be programmed.
Figure 1  Installing the
Vibration Mounts.
Locate the Cylinder Select cover on the side of the
unit and remove the single Phillips screw (Figure 2).
CYLINDERS CUT LOOPS
Number of Cylinders: The Red loop and the Blue
8
NONE
loop are responsible for cylinder programming. The
chart in Figure 2 shows which loop(s) to cut.
6
RED
4
RED AND BLUE
Note: After cutting a loop, position the wire ends
away from each other so they cannot make
contact.
Figure 2  Selecting the Number of Cylinders.
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