PN83506 Datasheet, PDF (1/8 Pages) Mallory performance club – MSD Ready-to-Run Marine V8 Distributor

MSD Ready-to-Run Marine V8 Distributor
Chevrolet, PN 83606, Ford 351C-460, PN 83506
ONLINE PRODUCT REGISTRATION: Register your MSD product online. Registering your product
will help if there is ever a warranty issue with your product and helps the MSD R&D team create
new products that you ask for! Go to www.msdperformance.com/registration.
Parts Included:
1 - Pro-Billet Distributor
1 - Rotor, PN 8467
1 - Distributor Cap
Chevy, Olds, PN 8565
Ford, PN 8431
1 - Wire Retainer
2 - 1.5" Self Tapping Screws
2 - 10-32 x 3/4" Socket Head Screws
1 - Advance Kit
1 - Gasket/O-Ring Seal
1 - Tube of Gear Lubricant
2 - O-Rings (Chevy Only)
1 - Gray Tach Jumper
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 two kits, PN 8849 or PN 8848 that are supplied with
nine boots and terminals.
Note: If the Chevy gear is ever replaced, MSD Gear, PN 8561, is required for replacement due to the
.500" diameter shaft.
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.
Note: MSD Distributors are supplied with the heavy (slow) advance springs and the 21° stop bushing
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. RPM LIMIT AND Tachometer Information
Tach Signal: The Ready-to-Run Distributor features a Gray Tach Output wire which provides a clean signal
for most tachometers and even some aftermarket fuel injection systems. The signal output
is a 12 volt square wave, 20° duty cycle. This wire is also responsible for programming the
built-in rev limiter.
Rev Limiter: The Ready-to-Run Distributor has a built-in rev limit that can easily be adjusted from 2,000
rpm to over 10,000 rpm. The default is 10,000 rpm. To set the rev limiter, run the engine to half
the desired rpm then ground the Gray Tach wire (a jumper is supplied) for approximately one
second. Every time the key is turned to the On position, the tach will display the programmed
rpm limit. See page 8 for the programming procedure.
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