MSD 5099 Installation

MSD DynaForce Starter

AMC V8, PN 5099

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IMPORTANT: Proper installation of the DynaForce Starter is important to the overall operation. Correct alignment

of the starter pinion with the ring gear is needed to achieve the best operation and longevity from
your starter. Please read the instructions before attempting the installation.

Parts Included:

1 - Starter 1 - Shim Ring 1 - Outer Shim

WARNING: Before installing the DynaForce Starter disconnect the battery cables. When disconnecting

the battery cables, always remove the Negative (-) cable first and install it last.

INSTALLATION

1. Make sure the starter mounting flange on the mid plate is
clean and smooth.

2. Before mounting the starter, measure the distance from the
front of the ring gear (engine side) to the starter mounting
surface. It should be 3/4" (Figure 2).

• If there is not enough clearance, you will need to install

the supplied shim kit by removing the mounting block
(Figure 3). Place the small shim ring in the bearing bore
and install the outer shim on the support housing. Reinstall
the mounting block. This will move the pinion gear into the
starter approximately 0.060".

3. Check that the position of the solenoid is away from direct
heat sources and other components. If there are clearance
problems, the starter housing can be rotated to move the
location of the solenoid. This is done by removing the three
bolts on the mounting block and repositioning the starter
motor (Figure 1).

4. After confirming clearances and positioning. Mount the
starter.

• If there is not enough clearance, you will need to install

the supplied shim kit by removing the mounting block
(Figure 3). Place the small shim ring in the bearing bore
and install the outer shim on the support housing. Reinstall
the mounting block. This will move the pinion gear into the
starter approximately 0.060".

• The gear mesh is not adjustable on this application. Verify

that all parts are correct for the application (flywheel, block
plate, starter) and verify starter is mounted correctly to
engine plate.

5. The switch wire that connects to the solenoid should be at
least 12-gauge (Figure 4). For alternative wiring to incorporate
the factory remote solenoid, See Figure 5.

CLOCKING

LOCATIONS

Figure 1 Clocking the Starter for Clearance.

RING

ENGINE BLOCK
TO TRANSMISSION
PLATE

TRANSMISSION

SIDE

STARTER
MOUNTING
BLOCK

3/4”

Figure 2 Checking Pinion Clearance.

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

2 INSTALLATION INSTRUCTIONS

Note: If your original starter had wire going to a

second terminal, an ‘R’ terminal, this can
generally be bypassed. See the information
on the last page of the instructions for more

INSTALL OUTER

SHIM

details.

6. Attach the battery cable. The gauge of the battery
cable depends on its length. Using the proper

SHIM

RING

gauge wire is important to the operation of the
starter. Both the positive and ground wires must
be able to meet the demands of the starter. The
chart in Figure 5 shows the recommended sizes.
Be sure to route the wire away from the exhaust
and moving parts of the engine.

7. Connect the battery terminals and start the engine.

IMPORTANT: Never operate a starter for more than

30 seconds at a time without letting it
cool for at least two minutes.

Figure 3 Installing the Pinion Shim Spacers.

12-GAUGE MINIMUM
TO IGNITION
SWITCH

CABLE LENGTH VS. GAUGE

LENGTH

AWG

3’ 5’ 7’ 10’ +10’

2

4

SWITCH

-

BATTERY

1

-

00

0

+

BATTERY

Figure 4 Wiring the Starter.

FACTORY REMOTE SOLENOID

+

10-12 GAUGETO IGNITION

Figure 5 Wiring to Incorporate Factory Solenoid.

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