Msd 8680 Adjustable Timing Control Installation- User Manual
Msd 8680 Adjustable Timing Control 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 – Figure 3 How to use the Supplied Wire Splice Device.; WIRING; Figure 4 Installing the Weathertight Connector.; Operating the Control; WIRE FUNCTIONS; “Points” terminal of a 7 Series Ignition.; TRIGGER WIRES; the White wire is not.
- Page 3 – DIAGRAMS; The following wiring diagrams show common installations.; NOTE: The MSD 5 and Blaster Ignitions
- Page 4 – Figure 6 Wiring to Magnetic Pickup Trigger with an MSD 6 Series.; The PN 8680 can be installed with
- Page 6 – Figure 10 Wiring to Points or Amplifier with an MSD 7 Series.; Note: The MSD 6 and 7 Series Ignitions share the same wire colors.
- Page 7 – Figure 12 Wiring to a Mallory 3-Wire Distributor.
- Page 8 – Limited Warranty; 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; TECH NOTES
IMPORTANT: Read the instructions before attempting installation.
P a r t s I n c l u d e d :
1 - Timing Control, PN 8680
1 - Control Knob
1 - 3/8" Bushing
1 - 2-Pin Weathertight Connector
4 - Self Tapping Screws
Note: The MSD PN 8680 Timing Control must be used with an MSD Ignition Control. It is recommended
to install the MSD Ignition first.
MOUNTING
The Timing Computer may be mounted in the engine compartment as long
as it is away from direct engine heat sources. Make sure all of the wires reach
their connections before mounting the unit. Use the Control as a template
and mark the mounting holes. Remove the unit and drill the mounting holes
using an 1/8" drill bit. Four self tapping screws are supplied to mount the unit.
Note: Before mounting the unit, install the supplied grommets and sleeves
as shown in Figure 1.
PROGRAMMING
The Timing Control is programmed for 8-cylinder. If installing the PN 8680 on
a 4 or 6-cylinder, the Control must be programmed.
Locate the Cylinder Select cover on the side of the
unit and remove the single Phillips screw (Figure 2).
Number of Cylinders: The Red loop and the Blue
loop are responsible for cylinder programming. The
chart in Figure 2 shows which loop(s) to cut.
Note: After cutting a loop, position the wire ends
away from each other so they cannot make
contact.
WARNING: During installation, disconnect the battery cables. When disconnecting the battery,
always remove the Negative cable first and install it last.
Figure 1 Installing the
Vibration Mounts.
Figure 2 Selecting the Number of Cylinders.
CYLINDERS
CUT LOOPS
8
NONE
6
RED
4
RED AND BLUE
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Adjustable Timing Control
PN 8680
M S D
• W W W . M S D P E R F O R M A N C E . 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 • W W W . M S D P E R F O R M A N C E . 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 3 How to use the Supplied Wire Splice Device. WIRING Figure 4 Installing the Weathertight Connector. Operating the Control After inst...
INSTALLATION INSTRUCTIONS 3 M S D • W W W . M S D P E R F O R M A N C E . 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 DIAGRAMS The following wiring diagrams show common installations. Figure 6 Wiring to Points or Amplifier Ignition with an MSD 6 Series. Figu...
4 INSTALLATION INSTRUCTIONS M S D • W W W . M S D P E R F O R M A N C E . 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 6 Wiring to Magnetic Pickup Trigger with an MSD 6 Series. Figure 7 Installation to a GM HEI with a 5 or 7-Pin Module (Points Trigger)...
