Mallory Ignition Mallory OFF-ROAD ELECTRONIC IGNITION CONTROL 6867M - Manual (Page 2)

Spark Plug Wires
High quality, spiral wound wire and proper
routing are essential to the operation of the
Ignition Control. This type of wire provides a
good path for the spark to follow while
minimizing electromagnetic interference (EMI).
NOTE: Do not use solid core spark plug
wires with the Ignition Control.
Routing
Wires should be routed away from sharp
edges, moving objects, and heat sources.
Wires that are next to each other in the
engine’s firing order should be separated.
For example, in a Chevy V8 with a firing order
of 1-8-4-3-6-5-7-2, the #5 and #7 cylinders
are positioned next to each other on the
engine as well as in the firing order. Voltage
from the #5 wire could jump to the #7 wire.
This could cause detonation and engine
damage. For added protection against
cross-fire, Mallory offers PRO SHIELD
insulated sleeving. Pro Shield is a glass
woven, silicone coated protective sleeve
that slides over your plug wires. It also
helps reduce damage from heat and
sharp objects.
MISCELLANEOUS INFORMATION
Sealing
The HyFire OFF-ROAD is completely
encapsulated to eliminate moisture intrusion
and to protect the ignition from vibration
and impact. The rotary switches are
moisture-resistant also. During installation,
no further consideration needs to be taken
except to mount the ignition away from heat
sources as discussed later in these
instructions.
Welding
To avoid any damage to the Ignition Control
when welding on the vehicle, disconnect
the positive (red) and negative (black) power
cables of the Ignition Control. It is also a
good idea to disconnect the tachometer
ground wire as well.
Distributor Cap and Rotor
We recommend installing a new distributor
cap and rotor when installing the Ignition
Control. Be sure the cap is clean inside and
out, especially the terminals and rotor tip.
On vehicles with smaller caps, it is possible
for the air inside the cap to become electrically
charged causing crossfire which can result
in misfire. You can prevent this by drilling
a couple of vent holes in the cap. Drill the
holes between terminals at rotor height,
facing away from the intake. If needed, place
a small piece of screen over the holes to
act as a filter.
OFF-ROAD Diagnostic LED
On the end panel of your ignition there is a
small hole. Behind this hole is a red LED
indicator. This serves two purposes: when
you first turn on the ignition switch, the LED
will flash rapidly 3 times. This indicates that
the ignition system has power, and that the
microprocessor is running properly. In addition,
the LED will flash when receiving a proper
trigger signal from the vehicle. If, after a
normal power-up, the LED doesn’t flash
when cranking the engine, you should check
your triggering circuit for problems. If the
LED flashes when the engine is cranked,
but there is still no spark, the problem lies
somewhere else.
MOUNTING
The Ignition Control can be mounted in
any position. If you mount it in the engine
compartment, keep it away from moisture,
moving objects and heat sources. Do not
mount the unit in an enclosed area, such
as the glove box. When you find a suitable
location to mount the unit, make sure all
wires of the ignition reach their connections.
Hold the ignition in place and mark the
location of the mounting holes. Use a 1/8”
drill bit to drill the holes. Use the supplied
self-tapping screws to mount the box.
Mounting it horizontally or with the wiring
down is preferred.
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