Mallory Ignition 29371 User Manual
CIRCUIT GUARD
PART NO. 29371
INSTALLATION INSTRUCTIONS
FORM 1376 (REV. D) 09/03
www.mrgasket.com
MALLORY IS A DIVISION OF THE MR. GASKET PERFORMANCE GROUP
550 MALLORY WAY, CARSON CITY, NEVADA 89701
216.688.8300 FAX 216.688.8306
FORM 1376
(REV. D) 09/03
Made in U.S.A.
Printed in U.S.A.
GENERAL INFORMATION
The Circuit Guard is designed for UNILITE®, HYFIRE®and MBI
distributors and conversion kits that experience failures with
the ignition modules from voltage spikes (voltage transients,
power surges).Voltage spikes are associated with “noisy”
electrical systems from electrical defects such as worn
alternator brushes, corroded or oxidized electrical connections
and similar electrical problems.Voltage spikes are clamped and
regulated by the Circuit Guard from damaging the HYFIRE
®
ignition module.
NOTE: The Circuit Guard does not resolve failures with
HYFIRE®, MBI and UNILITE®ignition modules associated
with: a) the absence of an ignition ballast resistor in
applications that require an ignition ballast resistor;
b) improper wiring.
INSTALLATION PROCEDURE
Step 1
Disconnect the distributor female connector from the distributor
wire harness male connector.
Step 2
Connect the distributor female connector to the Circuit Guard male
connector. See Figure 1.
Step 3
Connect the Circuit Guard female connector to the distributor wire
harness male connector. See Figure 1.
Step 4
Mount the Circuit Guard to the distributor housing with Velcro
®
.
Parts Included in this kit:
1 Circuit Guard Module 1 Velcro®Hook and Loop, 1" x 1-1/2"
ACTIVE
POWER
FILTER
Figure 1
DISTRIBUTOR (TYPICAL)
ALL UNILITE®DISTRIBUTOR SERIES NOS. 37,38, 45, 46, 47, 83, 86, 91,AND 93
ALL UNILITE®BREAKERLESS ELECTRONIC CONVERSION KITS
ALL MBI DISTRIBUTOR SERIES 42, 50, 57 AND 87
ALL MBI BREAKERLESS ELECTRONIC CONVERSION KITS
ALL HYFIRE®ELECTRONIC CONVERSION KITS
DISTRIBUTOR WIRE HARNESS
NOTE:THE DISTRIBUTOR WIRE HARNESS REMAINS
CONNECTED ACCORDING TO THE INSTRUCTIONS
SUPPLIED WITH YOUR IGNITION SYSTEM.
MALE
CONNECTOR
FEMALE
CONNECTOR
MALE
CONNECTOR
DISTRIBUTOR
FEMALE
CONNECTOR
(MOUNTING LOCATION SUGGESTION)
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