Mallory Ignition Mallory HYFIRE V ELECTRONIC IGNITION CONTROL 585 - Manual (Page 2)

MALLORY IGNITION 550 MALLORY WAY, CARSON CITY, NV 89701 2
WIRE FUNCTIONS
Power Leads
The two heavy gauge wires (14 gauge) that deliver battery voltage to
the ignition:
Heavy Red Connects directly to the battery positive (+) terminal
or to a positive battery junction. It could also be con-
nected to the positive side of the starter solenoid.
NOTE: Never connect this wire to the alternator.
Heavy Black Connects to frame or chassis ground.
Trigger and Coil Leads
Small Red Connects to a switched 12 volt source, such as the
ignition key.
Orange Connects to the positive (+) terminal of the coil.
NOTE: This is the only wire that makes electri-
cal contact with the coil positive (+) terminal.
Small Black Connects to the negative (–) terminal of the coil
NOTE: This is the only wire that makes electri-
cal contact with the coil positive (–) terminal.
Trigger Wires Either of two circuits will trigger the HYFIRE ® V Igni-
tion Control: a points circuit (white wire) or a mag-
netic pickup circuit (violet and green wires).
NOTE: The two circuits will never be used
together.
White Connects to points, electronic ignition amplifier out-
put or to the green wire of a Mallory timing acces-
sory. When this wire is used, the magnetic pickup
connector is not used.
Violet/Green These wires are routed together in one harness to
form the magnetic pickup connector. The connector
plugs directly into a Mallory distributor or crank trig-
ger. It will also connect to factory magnetic pickups
or other aftermarket pickups. The violet wire is posi-
tive (+) and the green is negative (–). When these
wires are used, the white wire is not used. Consult
the chart that shows the polarity of other common
magnetic pickups
Yellow Connects to the tachometer pickup wire.
DIAGNOSTIC
LED
MISCELLANEOUS INFORMATION
Sealing
Do not attempt to seal the HYFIRE ® V Ignition Control. All of the cir-
cuits of a HYFIRE ® V receive a conformal coating of sealant that pro-
tects the electronics from moisture. Sealing the HYFIRE ® V will not
allow any moisture that seeps in through the grommets to drain and
may result in corrosion.
Welding
To avoid any damage to the HYFIRE ® V Ignition Control when welding
on the vehicle, disconnect the positive (red) and negative (black) power
cables of the HYFIRE ® V Ignition Control. It is also a good idea to
disconnect the tachometer ground wire as well.
Distributor Cap and Rotor
As with any high performance ignition system, we recommend install-
ing a new distributor cap and rotor when installing the HYFIRE ® V
Ignition Control. Be sure the cap is clean inside and out, especially the
terminals and rotor tip.
HYFIRE
® V Diagnostic LED
On the end panel of your HYFIRE ® V Ignition there is a small hole.
Behind this hole is a red LED indicator. The LED will flash when re-
ceiving 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 en-
gine is cranked, but there is still no spark, the problem lies some-
where else.
MOUNTING
The HYFIRE ® V Ignition Control can be mounted in any position. If
you mount it in the engine compartment, keep it away from moving
objects and heat sources. Do not mount the unit in a closed area,
such as the glovebox.
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.
WIRING
Wire Length
All of the wires of the HYFIRE ® V Ignition Control may be shortened
as long as quality connectors are used or soldered in place. To lengthen
the wires, use one size larger gauge wire (12 gauge for power leads,
16 gauge for all others). Use the proper connectors to terminate all
wires. All connections must be soldered and sealed.
Grounds
A poor ground connection can cause many frustrating problems. When
a wire is specified to go to ground, connect it to the chassis. Always
connect a ground strap between the engine and chassis. Connect
any ground wires to a clean, paint-free metal surface.
Ballast Resistor
If your vehicle has a ballast resistor in line with the coil wiring, it is not
necessary to bypass it. This is because the HYFIRE ® V Ignition Con-
trol receives its main power directly from the battery.
FIGURE 1