Mallory Ignition Mallory UNILITE CONVERSION А566 User Manual
Page 2
2
TROUBLESHOOTING
The UNILITE
®
Module supplied with this kit is the same one supplied in
thousands of Mallory automotive distributors every year. If a replace-
ment module is needed, most mail order and speed shops carry the
module (part number 605).
To determine if the module is damaged, begin by pulling the UNILITE
®
plate assembly from the nose cone housing. Do not disconnect the
wires to the coil(s). Turn the ignition key to the ON position. Connect
volt meter leads to the negative side of the coil and to ground. The
voltage should read between 10 and 13 volts. Now place a credit card
or driver license in the path of the UNILITE
®
beam (i.e. place the card
or license in the gap between the bulbs in the UNILITE
®
Module). With
the UNILITE
®
blocked, the volt meter reading should drop to about 0-3
volts. If the voltage does not change when the UNILITE
®
is blocked, the
module is damaged and/or wired incorrectly.
NOTE: If the UNILITE
®
Module is damaged, find the cause before
installing a new one.
Check the following for possible causes of module failure:
a) Are the spark plug wires solid core type? If so, replace with
spiral-core or carbon core.
b) What is the primary resistance of the coil? It should be at least
2.0 ohms for racing and at least 3.0 for street use.
c) Are the 3 wires from the module connected to the correct
locations? Be sure the brown wire is connected to a good
ground.
d) Check the battery voltage with the engine running about 3000
rpm. If the voltage is a greater than 16 volts, a new regulator
may be needed. Excessive voltage may damage the UNILITE
®
Module.
e) Has the shutter wheel been rubbing on the module? If so the
module may have been overheated. Be sure to correct the
interference before replacing the module.
!
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$
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1. NOSE CONE HOUSING
2. ADVANCE ASSEMBLY
3. O.E. CAM SLEEVE
4. POINT PLATE ASSEMBLY
5. O.E. LOCKWASHERS
6. O.E. WASHERS
7. O.E. STANDOFFS
8. ADVANCE RETAINING BOLT
9. POINT COVER PLATE GASKET
10. POINT COVER PLATE
11. POINT COVER PLATE SCREWS
FIGURE 1