MSD 50922 Installation

MSD DynaForce High Speed Starter

Ford V8, 351C/M, 400, 429, 460, PN 50922

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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.

Thank you for purchasing the DynaForce High Speed Starter from MSD. Thanks to special gearing and other design features, the High Speed starter spins 25% faster than our traditional DynaForce starters. This extra speed is ideal for engines with magnetos or blown alcohol. Please be sure to read, understand, and follow the instructions prior to installation so that everything goes smoothly and the engine starts reliably time after time.

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 5/8" - 11/16" (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).

CLOCKING

LOCATIONS

Figure 1 Clocking the Starter for Clearance.

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2 INSTALLATION INSTRUCTIONS

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

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

5/8” -

11/16”

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.

STARTER MOUNTING BLOCK

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.

6. Attach the battery cable. The gauge of the battery cable

RING GEAR

depends on its length. Using the proper 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.

Figure 2 Checking Pinion Clearance.

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.

SHIM

RING

INSTALL OUTER

SHIM

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’

BATTERY

Figure 4 Wiring the DynaForce High Speed Starter.

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