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Dual plug heads, Single plug heads – Mallory Ignition Mallory UNILITE DISTRIBUTOR А556 User Manual

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MALLORY IS A DIVISION OF PRESTOLITE PERFORMANCE
10601 MEMPHIS AVE #12, CLEVELAND, OH 44144
216.688.8300 FAX

216.688.8306

www.malloryperformance.com

FORM #1411

(REV. D) 8/08

Made in U.S.A.

Printed in U.S.A.

Step 3

Remove the top from the Mallory distributor by removing the three screws.

Rotate the shaft until the arrow on the shutter wheel points approximately at

the arrow on the housing. Install the Mallory distributor in the engine. The slot

in the top of the housing will clear the cylinder fi ns.

Step 4

Install a 1966-69 distributor clamp. Do not tighten the clamp at this time.

Step 5

Turn the shutter wheel by hand to test the advance. The shutter wheel

should rotate clockwise about 10 degrees and snap back when released.

Using one hand, rotate the shutter wheel clockwise to the fully advanced

position and hold. Using your other hand, rotate the housing until the

arrow on the housing lines up with the arrow on the shutter wheel. Tighten

the distributor clamp bolt. Timing should now be close enought to start the

engine.

Step 6

Replace the Mallory top and install the three screws to hold it in place.

NOTE: The 3 holes in the housing must be aligned with the 3 holes in the top

to ensure proper placement of the UNILITE

®

module. (Tech Tip: Add some

Blue Loctite to 3 screws to help prevent them from vibrating loose.)

Step 7

Connect the wires as shown in Figures C and D. Start the engine and

check the timing with a timing light. NOTE: when checking the timing,

engine RPM must be above 2000 for accurate timing results.

FIGURE B

SINGLE PLUG HEADS

GREEN

RED

2 TO 4 OHM

BROWN

GROUND

12 VOLTS FROM IGNITION SWITCH

FIGURE C

DUAL PLUG HEADS

GREEN

JUMPER

12 VOLTS FROM IGNITION SWITCH

RED

BROWN

GROUND

1 TO 2 OHM

1 TO 2 OHM

FIGURE D