MSD 50902 Ford High Speed DynaForce Starter 289, 302, 351W Installation - Manual (Page 2)

2 INSTALLATION INSTRUCTIONS
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When using OEM bell housings, it must be paired with the
corresponding flywheel and ring gear. Many aftermarket
bellhousings feature a punch out to allow both to be used.
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 (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.
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 details.
6. Attach the battery cable. The gauge of the battery cable 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. 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.
INSTALL OUTER
SHIM
SHIM
RING
Figure 2 Clocking the Starter for Clearance.
CLOCKING
LOCATIONS