Mallory Ignition 81, 84 User Manual
FORM 1104 (REV. C) 01/03
INST ALLA TION INSTRUCTIONS
®
BILLET COMPETITION DISTRIBUT OR
SERIES NOS. 81 AND 84
COMP® S/S DISTRIBUT OR
32 SERIES
NOTICE: THE COMP® S/S MAGNETIC BREAKERLESS DISTRIBUTOR SERIES AND BILLET COMPETITION DISTRIBUTOR SERIES NOS. 81 AND 84 ARE LEGAL IN CALIFORNIA ONLY FOR RACING
VEHICLES WHICH MAY NEVER BE USED UPON A HIGHWAY. IF THERE ARE ANY QUESTIONS,
PLEASE CONT ACT THE F ACT ORY.
PARTS INCLUDED WITH THIS KIT:
Series Nos. 32 and 84 (Single Pickup) Series No. 81 (Dual Pickup)
1 Distributor 1 Distributor
1 Distributor Wire Harness Part No. 29788 2 Distributor Wire Harnesses Part No. 29788
GENERAL INFORMA TION
Mechanical Advance
Distributor part numbers ending in “1” have 24° (crankshaft degrees)
of mechanical advance. Distributors ending in “05” have 20° (crankshaft degrees) of mechanical advance. Both of these may be adjusted
by using Mallory Advance Curve Kit 29014 to fine tune the curve to
your particular engine’s requirements.
Distributor part numbers ending in “04” have locked, 0°, mechanical
advance.
Electronic Ignition Controls
These distributors require the use of a Mallory HYFIRE 6 or 7 Series
Capacitive Discharge Ignition System or a similar type CD ignition.
They cannot be used with just a coil.
Ignition Coils
Use ignition coils recommended by the ignition coil manufacturer for the
particular electronic ignition control.
Spark Plug Wires
YOU MUST USE suppression type (carbon core; spiral core;
suppression core) spark plug wire. We recommend spiral core ig-
nition wire, such as Mallory PRO SIDEWINDER
pression type spark plug wires prevent false triggering and the possibility of premature ignition or accessory failures.
DO NOT USE solid core (copper core; stainless steel core)
spark plug wire with any electronic ignition system or accessory. Solid core spark plug wire causes radio frequency interference
(ignition noise; static). Radio frequency interference causes false triggering (pre-ignition; spark-scatter) and premature ignition or accessory
failures. Prevent false triggering and the possibility of premature ignition
or accessory failures, use suppression type spark plug wire (carbon
core; spiral core; suppression core). We recommend spiral core ignition wire, such as Mallory PRO SIDEWINDER
Spark Plug Gaps
Experiment with and closely monitor various gaps to achieve maximum
performance. Exceptionally large spark plug gaps lead to problems of
crossfire inside the distributor cap, burnt rotors, spark plug wire failure
and reduced spark plug life. If you are trying to find the ideal spark
plug gap, start at 0.035" and increase 0.005" at a time until elapse
®
Ignition Wire. Sup-
®
Ignition Wire.
times fall off (or MPH-falls off), the car starts misfiring or the incidence of
failure to the distributor cap, rotor, spark plug wires or spark plugs is
frequent during the race.
Electric Welding
Unplug the distributor wire harness before welding on the vehicle.
Distributor Drive Gear
Bronze distributor gears absorb the increased wear caused by specialized camshafts and are easily replaced before costly damage to the camshaft gear occurs. Bronze distributor gears must be checked frequently
and replaced often and are metallurgically compatible with any camshaft.
OLD DISTRIBUT OR REMOV AL
Step 1
Locate the #1 cylinder’s spark plug wire on the original distributor cap.
Mark the distributor cap and the distributor housing, in line with this spark
plug wire position on the distributor cap.
Step 2
Turn the engine crankshaft in the direction of rotation until the timing mark
lines up with the top dead center (TDC) mark on the timing tab.
NOTE: Removing the spark plugs may make it easier to turn
the crankshaft.
Step 3
Remove the distributor cap from the distributor. Do not remove the spark
plug wires or coil wire at this time. The rotor blade should point to the
mark made on the distributor housing (from Step 2). If it is not, turn the engine crankshaft in the direction of rotation one full turn (repeating Step 3)
until the timing mark lines up (again) with the TDC-mark on the timing tab.
NOTE: Once you are finished with step 4, do not turn the
crankshaft until the new distributor is installed.
Step 4
Note the direction the rotor is pointing. If you are replacing a vacuum advance distributor, disconnect the vacuum hose and plug the source. Remove the distributor hold down clamp and remove the distributor from the
engine.
MAGNETIC BREAKERLESS
DISTRIBUT OR INSTALLATION
Step 1
Remove the distributor cap.
Step 2
Place the distributor in the engine with the rotor pointing in the same
general direction as the original distributor.
NOTE: The distributor must be fully seated into the engine. It
may be necessary to turn the oil pump drive, or turn the engine crankshaft in the direction of rotation two full turns until
the timing mark lines up (again) with the TDC-mark on the timing tab, to allow the distributor to seat fully.
Step 3
Rotate the distributor housing in the opposite direction of rotor rotation
until the nearest tooth of the reluctor is pointing directly at the center of
the metal pole on the magnetic pickup. This will generally put timing
close enough for starting purposes. Put the distributor hold down clamp
in place and tighten slightly, leaving it loose enough to turn the distributor. Make a mark on the distributor housing where the rotor points.
Example (Dual Pickup), see Figure 1:
FIGURE 1
Triggering Position
WIRING PROCEDURE
SERIES NOS. 84 AND 32 (SINGLE PICKUP)
There is a female connector with two wires coming from the distributor:
• Connect the distributor wire harness to the female connector and
route the harness two wires to the electronic ignition control.
• ORANGE-WIRE-(MAG+): Connect to the magnetic input
(MAG+)-terminal or wire on the electronic ignition control.
• PURPLE-WIRE-(MAG–): Connect to the magnetic input (MAG–)
terminal or wire on the electronic ignition control.
SERIES NOS. 81 (DUAL PICKUP)
There are two separate female connectors with two wires coming from
the distributor:
• Connect the distributor wire harness to one female connector and
route the harness two wires to the electronic ignition control.
• ORANGE WIRE (MAG+): Connect to the magnetic input (MAG+)
terminal or wire on the electronic ignition control.
• PURPLE WIRE (MAG–): Connect to the magnetic input (MAG–)
terminal or wire on the electronic ignition control.
• Connect the other distributor wire harness to the other female
connector and route the harness two wires to the other electronic
ignition control.
• ORANGE WIRE (MAG+): Connect to the magnetic input (MAG+)
terminal or wire on the electronic ignition control.
• PURPLE WIRE (MAG–): Connect to the magnetic input (MAG–)
terminal or wire on the electronic ignition control.
Triggering Position
NOTE: Recommended reluctor to pickup
air gap is .010" – .020".
Step 4
Install the distributor cap. Remove the #1 cylinder’s spark plug wire on
the original distributor cap and install it onto the distributor cap post
above the mark on the distributor housing where the rotor had pointed.
Continue installing each remaining spark plug wire, one at a time, from
the original distributor cap to the distributor cap in the same sequence.
NOTE: It may be necessary to purchase and install distributor boots
and terminals for the spark plug wires to correctly fit the distributor cap.
NOTE: Refer to the electronic ignition control instructions for
remaining power connections.
Tachometer operation: Connect tachometer wire or wires as recom-
mended by the actual tachometer manufacturer or electronic ignition
control manufacturer.
ST ARTING THE ENGINE
CAUTION: Be sure all tools, wires, and miscellaneous objects
are clear of moving engine parts and extremem heat before
starting the engine.
Step 1
Recheck all wires and connections to make sure they are correct.
Check and clean or replace spark plugs. If replacing spark plugs, use
types recommended by the engine manufacturer.
Step 2
Connect a timing light. Find an area with the best view of the timing
marks.
Step 3
Start the engine. If it fails to start, rotate the distributor in small increments (either clockwise or counterclockwise) until the engine starts.
Step 4
Set timing as recommended by the engine manufacturer, then tighten
distributor hold-down clamp. Make sure timing is still correct. If timing
has moved, repeat this procedure.
MALLORY IS A DIVISION OF THE MR. GASKET PERFORMANCE GROUP
550 MALLORY W AY , CARSON CITY, NEV AD A 89701
(216) 688-8300 FAX (216) 688-8306
www.mrgasket.com
FORM 1104
(REV. C) 01/03
Made in U.S.A.
Printed in U.S.A.
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