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INSTALLATION INSTRUCTIONS

AUTOTRONIC CONTROLS CORPORATION

• 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • (915) 857-5200 • FAX (915) 857-3344

GM IGNITIONS GM Large Cap HEI Distributors

There are three different large cap HEI distributors. To indentify

which of the following diagrams fit your specific application, remove

the distributor cap and rotor and locate the ignition module at the

base of the distributor. Count the number of terminals on both ends

of the module and follow the corresponding diagram. GM used 4,

5, and 7-pin modules in these distributors.
NOTE: Some 5-pin models may experience a hesitation or stall

on decceleration. If this occurs, contact MSD Tech Line

for the required bolt-in diode to correct the problem. MSD

Tech Line (915) 855-7123

GM IGNITIONS Wiring an HEI 4-pin Module (Magnetic Pickup Trigger).

PN 8860 HARNESS

WHITE

JUMPER

RED

KEY

CONNECTOR

TO ENGINE

GROUND

HEAVY RED

OR PINK WIRE

FROM CAR

WIRING HARNESS

WHITE

(NOT USED)

COVER WITH TAPE

ORANGE*

*ORANGE - CONNECTS TO B+
*BLACK - CONNECTS TO C-

BLACK*

PN 8861

HARNESS

CONDENSOR

GM-CABLE

HARNESS

GM MODULE

GROMMET

WIRE CLAMPS

REMOVE MODULE

INSTALL HARNESS

B+

GND

C-

MAGNETIC PICKUP

CONNECTOR

HEAVY RED

HEAVY BLACK

TO BATTERY

IGNITION

DIGITAL-6

PN 6520

PROGRAMMABLE

2 STAGE REV-LIMITER

STEP RETARD

CAPACITIVE DISCHARGE

IGNITION

Plus

NOTE: The GM Ignition Module and condensor are removed

and replaced with the MSD PN 8861 Harness.

Содержание 6520

Страница 1: ...een thoroughly debounced and isolated to create protection against Electro Magnetic Interference EMI CAPACITIVE DISCHARGE The MSD Digital 6 Plus features a capacitive discharge ignition design The majority of stock ignition systems are inductive ignitions In an inductive ignition the coil must store and step up the voltage to maximum strength in between each firing At higher rpm since there is les...

Страница 2: ...eral Information BATTERY An MSD 6 Series Ignition Control will operate on any negative ground 12 volt electrical system with a distributor The MSD can be used with 16 volt batteries and can withstand a momentary 24 volts in case of jump starts The Ignition will deliver full voltage with a supply of 9 18 volts and will operate with a supply voltage as low as six volts If your application does not u...

Страница 3: ...s exactly right for your application It is recommended to follow the engine builder or manufacturer s specification for spark plugs With that you can then experiment with the plug gap to obtain the best performance The gap of the plugs can be opened in 0 005 increments then tested until the best performance is obtained MSD judges the plug gap by compression and components These examples are just s...

Страница 4: ...tive terminal This is the ONLY wire that makes electrical contact with the negative coil terminal There are two circuits that can be used to trigger the MSD Ignition a Points circuit the White wire and a Magnetic Pickup circuit the Green and Violet wires The two circuits will never be used at the same time This wire is used to connect to breaker points electronic ignition amplifier output or to th...

Страница 5: ...distributor the Green Loop should be cut and sealed Figure 3 Note It is recommended to check your total timing to ensure the setting for your application Figure 2 Programming the Number of Cylinders Note Positions 8 and 9 cause the ignition NOT to run Use as a theft deterrant Cylinder Select Cyl Select w 20 Start Retard 0 4 cyl 4 4 cyl 1 6 cyl 5 6 cyl 2 8 cyl 6 8 cyl 3 6 odd 7 6 odd fire Grounds A...

Страница 6: ...ero defaults to a limit of 12 500 rpm Figure 4 Adjusting the Rev Limits 2 Step Limit This rpm limit is activated when 12 volts are applied to the Blue wire When activated this limit overrides the Max Limit This limit is adjustable from 2 000 to 9 900 and will default to 2 000 rpm if the dials are set to an rpm below this range An example of wiring the 2 Step Limit so it is activated with the line ...

Страница 7: ...ough the Troubleshooting section The LED will appear to be on steady at above idle speeds when everything is functioning properly Flashes once per second if the battery supply voltage is low when under 3 300 rpm while multiple sparking This indicates a charging problem or poor connection It will flash approximately once per second if the battery input voltage is above 27 volts for a sustained amou...

Страница 8: ...0 Figure 8 Wiring the Dual Ballast Resistor Figure 9 Installing the diode to a GM or Ford Vehicle Figure 10 Installing the Diode to a 1973 1983 GM Vehicle BALLAST RESISTOR If you have a current trigger tach originally coil positive and use the White wire of the MSD you can purchase a Chrysler Dual Ballast Resistor used from 1973 1976 and wire it as shown in Figure 8 ENGINE RUN ON If your engine co...

Страница 9: ...ng lean Inspect the spark plugs and complete fuel system Inspect all wiring connections for corrosion or damage Remember to always use proper connections followed by soldering and seal the connections completely If everything checks positive use the following procedure to test the ignition for spark MSD also offers an Ignition Tester PN 8998 or PN 8996 This tool allows you to check your complete i...

Страница 10: ...e is now spark the coil is at fault C If there is still no spark check to make sure there are 12 volts on the small Red wire from the MSD when the key is in the On position If 12 volts are not present find another switched 12 volt source and repeat the test D If after following the test procedures and inspecting all of the wiring there is still no spark the MSD Ignition is in need of repair See th...

Страница 11: ... NOTE On dual point setups it is recommended to remove the trailing set of points MSD SYSTEMS Installing to an MSD Distributor Crank Trigger NOTE Ballast Resistor is not necessary NOTE Remove the coil terminal wires The negative wire connects to MSD White The positive wire connects to MSD Red The MSD Orange connects to the coil positive terminal Black connects to the coil negative terminal ...

Страница 12: ...TRUCTIONS AUTOTRONIC CONTROLS CORPORATION 1490 HENRY BRENNAN DR EL PASO TEXAS 79936 915 857 5200 FAX 915 857 3344 MSD SYSTEMS Installing to an MSD Distributor PN 8360 MSD SYSTEMS Wiring a Complete Dual MSD Ignition Setup ...

Страница 13: ...RONIC CONTROLS CORPORATION 1490 HENRY BRENNAN DR EL PASO TEXAS 79936 915 857 5200 FAX 915 857 3344 MSD SYSTEMS With an MSD Timing Control points or amplifier MSD SYSTEMS Typical Drag Race Setup with Timing Control and Two Step Selector ...

Страница 14: ...he vehicle is not equipped with a factory tach there will only be one white wire BLACK RED WHITE ORANGE COIL WIRE A PINK WIRE A PINK WIRES B AND C WIRES B AND C FACTORY HARNESS CUT FROM COIL MAGNETIC PICKUP NOT USED HEAVY RED HEAVY BLACK TO BATTERY TO BATTERY IGNITION TM DIGITAL 6 PN 6520 PROGRAMMABLE 2 STAGE REV LIMITER STEP RETARD CAPACITIVE DISCHARGE IGNITION Plus NOTE MSD offers a direct plug ...

Страница 15: ...S 79936 915 857 5200 FAX 915 857 3344 GM IGNITIONS Wiring with an MSD Wiring Harness Harness PN 8876 Dual Connector Coil Harness PN 8877 1996 on GM Vehicles GM IGNITIONS Wiring with an MSD Wiring Harness and a Timing Control Harness PN 8876 Dual Connector Coil Harness PN 8877 1996 on GM Vehicles ...

Страница 16: ...tion or stall on decceleration If this occurs contact MSD Tech Line for the required bolt in diode to correct the problem MSD Tech Line 915 855 7123 GM IGNITIONS Wiring an HEI 4 pin Module Magnetic Pickup Trigger PN 8860 HARNESS WHITE JUMPER RED KEY CONNECTOR TO ENGINE GROUND HEAVY RED OR PINK WIRE FROM CAR WIRING HARNESS WHITE NOT USED COVER WITH TAPE ORANGE ORANGE CONNECTS TO B BLACK CONNECTS TO...

Страница 17: ...BLACK CONNECTS TO C PINK TO TACH TO ENGINE GROUND ORANGE RED RED JUM PER W HITE W HITE JUM PER BLACK 18 BLACK TO GROUND B GND C MAGNETIC PICKUP NOT USED HEAVY RED HEAVY BLACK TO BATTERY TO BATTERY IGNITION TM DIGITAL 6 PN 6520 PROGRAMMABLE 2 STAGE REV LIMITER STEP RETARD CAPACITIVE DISCHARGE IGNITION Plus NOTE Some 5 pin models may experience a hesitation or stall on deceleration If this occurs co...

Страница 18: ...IONS AUTOTRONIC CONTROLS CORPORATION 1490 HENRY BRENNAN DR EL PASO TEXAS 79936 915 857 5200 FAX 915 857 3344 FORD IGNITIONS Wiring a Ford DuraSpark using Magnetic Pickup Trigger FORD IGNITIONS Wiring a Ford TFI without Harness ...

Страница 19: ...RY BRENNAN DR EL PASO TEXAS 79936 915 857 5200 FAX 915 857 3344 FORD IGNITIONS Wiring a Ford TFI with Harness PN 8874 NOTE Installation of a Timing Control with the Harness see page 15 CHRYSLER IGNITIONS Wiring a Chrysler Electronic Ignition using Magnetic Pickup Trigger ...

Страница 20: ...in connector Wiring a Toyota with a Tach Adapt PN 8910HEI CHRYSLER IGNITIONS Wiring a Jeep with Integrated Coil Module Assembly MSD offers aWiring Kit PN 8813 that allows you to modify the original Jeep Ignition Module Coil assembly This style of ignition is used in many 1987 1989 models The drawing shows the installation with the coil already modified NOTE Original wiring must be cut ...

Страница 21: ... 12 VOLTS BLACK YELLOW WIRE ORIGINAL COIL TRIGGER WIRE WHITE BLUE WIRE ORIGINAL COIL DISTRIBUTOR ASSEMBLY WITHOUT COIL COIL REMOVED BLASTER SS COIL PN 8207 RED ORANGE BLACK ORANGE BLACK MAGNETIC PICKUP NOT USED HEAVY RED HEAVY BLACK TO BATTERY TO BATTERY IGNITION TM DIGITAL 6 PN 6520 PROGRAMMABLE 2 STAGE REV LIMITER STEP RETARD CAPACITIVE DISCHARGE IGNITION Plus MSD offers a Power Cap to convert y...

Страница 22: ...cts to MSD Red The MSD Orange connects to the coil positive terminal Black connects to the coil negative terminal GREEN OR BLUE GREEN OR BLUE ORIGINAL COIL YELLOW AND BLACK YELLOW ORIGINAL COIL BLACK YELLOW YELLOW AND RED WHITE ORANGE BLACK ORIGINAL COIL HARNESS MAGNETIC PICKUP NOT USED HEAVY RED HEAVY BLACK TO BATTERY TO BATTERY IGNITION TM DIGITAL 6 PN 6520 PROGRAMMABLE 2 STAGE REV LIMITER STEP ...

Страница 23: ...ROLS CORPORATION 1490 HENRY BRENNAN DR EL PASO TEXAS 79936 915 857 5200 FAX 915 857 3344 AFTERMARKET COMPONENTS Wiring a Mallory Unilite or 9000 Series using Points Trigger AFTERMARKET COMPONENTS Wiring a Mallory 9000 Series using Magnetic Pickup ...

Страница 24: ...ce is charged based on a minimum and maximum charge Send the unit prepaid with proof of purchase to the attention of Customer Service Department Autotronic Controls Corporation 12120 Esther Lama Suite 114 El Paso Texas 79936 When returning the unit for repair leave all wires at the length in which you have them installed Be sure to include a detailed account of any problems experienced and what co...

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