MSD 8650 Installation

Flying Magnet Crank Trigger Kit

Pontiac V8 Engines

PN 8650

Important: Read the instructions before attempting the installation.

Parts Included

1 - Trigger Wheel 2 - Bolts, 5/16" - 24 x 1¼”
1 - Pickup Holder Assembly 4 - Bolts, 5/16"- 18 x 1¼”
1 - Trigger Wheel Spacer 4 - 5/16" Washers
1 - Non Magnetic Pickup Assembly 4 - Bolts, 3/8"- 16 x 1¼”
1 - Pickup Base 2 - Bolts, 3/8" - 16 x 3"
1-General Wiring Instructions 6 - 3/8" Washers
1-Tech Bulletin #104 2 - Thin Spacer Washers

Note: On some vehicles the MSD crank Trigger Kit may require slight modifications
to accomodate special engine plates, pulley systems, etc.

INSTALLING THE PICKUP AND BRACKET

1. Install the pickup holder
onto the bracket and snug
the bolts. Only two bolts will
correctly fit the threads of the
pickup base. Do not try to
force the bolts in.

2. Install the pickup bracket
onto the passenger side of
the balancer. Be sure to use
the correct length bolts and
shims in the proper positions.

3. Install the locknut onto the
pickup, then install the
pickup. Do not tighten the
locknut at this time.

AUTOTRONIC CONTROLS CORPORATION • 1490 HENRY BRENNAN DR., EL PASO, TEXAS 79936 • [phone] • FAX [phone]

Figure 1 Pickup Bracket Assembly.

INSTALLING THE
TRIGGER WHEEL

1. Position the No. 1 cylinder
under compression at the desired
total timing. Install the trigger
wheel centering ring onto the
harmonic balancer of the engine.

2. Position the trigger wheel onto
the harmonic balancer and
centering ring so one of the four
magnets lines up with the center
of the non-magnetic pickup. Make
sure the wheel is mounted so it
rotates in the direction of the arrow
on the wheel. If necessary, slide
the pickup in its mount until it
properly lines up with the trigger
wheel magnet.

3. Check and make sure the wheel is positioned correctly with the pickup and
torque the trigger wheel bolts to 25 - 30 lb-ft.

4. The pickup should be centered to the edge of the crank trigger wheel (Figure 2).
If not, it may be necessary to add or delete shims to the pickup bracket to achieve
the proper position.

Figure 2 Pickup Centered on the Trigger Wheel.

Service

In case of malfunction, this MSD component will be repaired free of charge according to the terms
of the warranty. When returning MSD components for service, Proof of Purchase must be supplied for
warranty verification. After the warranty period has expired, repair service is charged based on a minimum
and maximum charge.

Send the unit prepaid with proof of purchase to the attention of: Customer Service Department,
Autotronic Controls Corporation, 1490 Henry Brennan Drive, El Paso, Texas 79936.

When returning the unit for repair, leave all wires at the length in which you have them installed.
Cutting wires close to the unit will void your warranty. Be sure to include a detailed account of any
problems experienced, and what components and accessories are installed on the vehicle.

The repaired unit will be returned as soon as possible after receipt, COD for any charges. For more
information, call the MSD Customer Service Line [phone]. MSD technicians are available from
8:00 a.m. to 5:00 p.m. Monday - Friday (mountain time).

Limited Warranty

A

utotronic Controls Corporation warrants MSD Ignition products to be free from defects in material
and workmanship under normal use and if properly installed for a period of one year from date of
purchase. If found to be defective as mentioned above, it will be replaced or repaired if returned prepaid
along with proof of date of purchase. This shall constitute the sole remedy of the purchaser and the sole
liability of Autotronic Controls Corporation. To the extent permitted by law, the foregoing is exclusive
and in lieu of all other warranties or representations whether expressed or implied, including any implied
warranty of merchantability or fitness. In no event shall Autotronic Controls Corporation be liable for
special or consequential damages.

FRM16022 Created 01/95 Printed In U.S.A.