INSTALLATION INSTRUCTIONS

5

Noise Capacitor: MSD offers a Noise Capacitor or Filter to

help eliminate EMI noise. This capacitor, PN 8830, will also

protect the MSD and accessories from voltage and current

spikes.

ROUTING WIRES

The MSD wires should be routed away from direct heat

sources such as exhaust manifolds and headers and any

sharp edges. The trigger wires should be routed separate

from the other wires and spark plug wires. It is best if they

are routed along a ground plane such as the block or firewall

which creates an electrical shield. The magnetic pickup

wires should always be routed separately and should be

twisted together to help reduce extraneous interference (the harness supplied is already twisted).

The chart shows the polarity of other common magnetic pickups. If using a different magnetic pickup,

use the MSD 2-Pin connector, available as PN 8824, for a direct plug-in installation.

WARNING: The MSD 7 Series Ignitions are capacitive discharge ignitions. High voltage is present

at the coil primary terminals. Do not touch the coil or connect test equipment to the

terminals.

PRESTART CHECK LIST

•TheonlywiresconnectedtothecoilterminalsaretheMSDOrangetocoilpositiveandBlackto

coil negative.

•ThesmallRedwireoftheMSDisconnectedtoaswitched12voltsource.

•TheMSDpowerleadsareconnecteddirectlytothebatterypositiveandnegativeterminals.

•Thebatteryisconnectedandfullychargedifnotusinganalternator.

•Theengineisequippedwithatleastonegroundstraptothechassis.

TROUBLESHOOTING

Every MSD Ignition undergoes numerous quality control checks including a four hour burn-in test. If

you experience a problem with your MSD, our research has shown that the majority of problems are

due to improper installation or poor connections.

The Troubleshooting section has several checks and tests you can perform to ensure proper

installation and operation of the MSD. If you have any questions concerning your MSD, call our

Customer Support Department at (915) 855-7123, 7 - 6 mountain time.

Common Mag Pickup Wires

Distributor

Colors

Mag+

Mag-

MSD

Org/Blk

Vio/Blk

MSD Crank Trigger

Org/Blk

Vio/Blk

Ford

Orange

Purple

Org/Blk

Vio/Blk

Red

Black

Chrysler

Org/Wht

Black

Mallory

Org/Blk

Vio/Blk

Figure 4 Common Mag Pickup Wires.