PN8545 Datasheet, PDF (1/8 Pages) Mallory performance club – MSD Pro-Billet Chrysler V8 Distributor

MSD Pro-Billet Chrysler V8 Distributor
PN 8545 - 383, 400
PN 8546 - 426, 440
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will help if there is ever a warranty issue with your product and helps the MSD R&D team create
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Important:  Read these instructions before attempting the installation.
Note: An MSD Ignition Control is required to use these distributors.
Parts Included:
1 - Pro-Billet Distributor
1 - Rotor, PN 8467
1 - Distributor Cap, PN 8431
1 - Gasket
1 - Parts Bag
1 - O-Ring Seal
WARNING: Before installing the MSD Distributor, disconnect the battery cables. When disconnecting
the battery cables, always remove the Negative (-) cable first and install it last.
Note: The terminals of this Distributor require spark plug style terminals. You may need to change the
terminals and boots of your wires. MSD offers a kit, PN 8849, that is supplied with nine boots and
terminals for this style cap.
TIMING FUNCTIONS
Before continuing with the installation, here are a few definitions you should be aware of:
Initial Timing: This is the base timing (also referred to as idle timing) of the engine before the
centrifugal advance begins.
Centrifugal Advance: The centrifugal (or mechanical) advance mechanism is made up of weights,
springs, advance cams, and an advance stop bushing. The amount and rate of advance that your
distributor is capable of is determined by the centrifugal timing. If you ever wish to lock out the
centrifugal advance, refer to the centrifugal advance section.
Total Timing: This is the total of the initial timing plus the centrifugal advance added together.
Example: 10° Initial + 25° centrifugal = 35° Total Timing. (When checking Total timing, disconnect
the vacuum canister and plug the vacuum source.)
Note: MSD Distributors are supplied with the heavy (slow) advance springs installed. This is to
prevent detonation in certain applications. Review the information on pages 2-4 to determine
the best advance curve for your application.
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