Msd 8523 AMC V8 Ready to Run Distributor Installation- User Manual
Msd 8523 AMC V8 Ready to Run Distributor Installation– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – CHOOSING AN ADVANCE CURVE; FACTOR; Figure 1 Ignition Timing Factors.; TIPS ON SELECTING AN ADVANCE CURVE
- Page 3 – CENTRIFUGAL ADVANCE CURVE; SELECTING THE ADVANCE SPRINGS; Figure 2 The Factory Equipped Curve.; Timing Curve From Factory; Figure 4 Advance Curves.; SPRING COMBINATION
- Page 4 – Figure 5 Advance Stop Bushing Chart.; BUSHING SIZE; Silver
- Page 5 – OPTIONAL VACUUM ADVANCE LOCKOUT; Note: If no shims were required, use one beneath; Figure 9 Checking Installation of the Lockout Plate.
- Page 6 – INSTALLING THE DISTRIBUTOR; Place the distributor cap back on and; Figure 10 Marking the Rotor Location.
- Page 7 – Figure 12 Connecting an MSD Ignition Control.
- Page 8 – Limited Warranty; for special or consequential damages.; Service; When returning MSD components for warranty service,; Proof of Purchase must be supplied for verification. After; All returns must have a Return Material Authorization (RMA) number; issued to them before; M S D I G N I T I O N; TACHOMETER INFORMATION; to connect to the tach with another tee-splice coming off to use for; Figure 13 Setting the rev limiter.
MSD Pro-Billet Ready-to-Run
AMC V8 Distributor
PN 8523
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Important:
Read these instructions before attempting the installation.
Parts Included:
1 - Pro-Billet Distributor
1 - Rotor, PN 8467
1 - Distributor Cap, PN 8433
1 - Advance Kit
Note: The terminals of the Ready-to-Run AMC Distributor requires 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.
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 and cap
the vacuum canister and plug the vacuum line.)
Vacuum Advance: The vacuum advance will advance the timing up to 10° during partial throttle
driving (with 15 lbs of vacuum). The vacuum line should be routed to a ported vacuum outlet above
the throttle plates.
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
2-3 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.
1 - Gasket
1 - Vacuum Advance Lock-Out Kit
1 - Tube of Gear Lubricant
1 - Wiring Harness
1 - Gray Tach Jumper
M S D I G N I T I O N
• W W W . M S D I G N I T I O N . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
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Summary
2 INSTALLATION INSTRUCTIONS M S D I G N I T I O N • W W W . M S D I G N I T I O N . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 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,...
INSTALLATION INSTRUCTIONS 3 M S D I G N I T I O N • W W W . M S D I G N I T I O N . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 CENTRIFUGAL ADVANCE CURVE SELECTING THE ADVANCE SPRINGS Figure 2 The Factory Equipped Curve. Timing Curve From Factory Figure 4 Advance Curves. Figu...
4 INSTALLATION INSTRUCTIONS M S D I G N I T I O N • W W W . M S D I G N I T I O N . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4 Figure 5 Advance Stop Bushing Chart. Figure 6 Changing the Advance Stop Bushing. Figure 7 Removing the Retaining Sleeve. SELECTING THE ADVANCE STOP ...
