MSD 7445 Pro-Cap Cap-A-Dapt Kit, Fits MSD Distributors Installation - Manual

Parts Supplied
1 – Pro Cap, PN 7408
1 – Adapter Base, PN 7446
1 – Rotor, PN 7424
1 – Rounded Rotor Tip
4 – Self Tapping Screws
2 – Plastic Hex Head Rotor Screws
4 – 10-32 x 1.25 Pan Phillips Screws
2 – O-Rings
1 – Wire Retainer, PN 7409
6 – Belleville Washers
1 – Tech Brief, Rotor Phasing
4 – 10-32 x .625 Truss Head Phillips
screws
Pro Cap for MSD Pro-Billet Distributors
PN 7445
This Cap is designed to be used on most MSD
Pro-Billet Distributors.
Note: If you are using an MSD 8 or MSD 10
Series Ignition, contact MSD for a custom
rotor tip at (915) 855-7123.
Note: The Pro-Cap is supplied with two sets
of rotor screws; two over-molded plastic
hex screws and two Phillips head screws.
Some MSD distributors will not accept
the plastic hex screws due to the position
of the magnetic pickup. Before installing
the Cap Spacer, install the rotor and
check for clearance over the magnetic
pickup as shown in Figure 1.
Figure 1 Checking Rotor Screw Clearance.
INSTALLATION
INTERFERENCE
1. If the distributor is in the engine, mark the location of the
spark plug wires and remove them. Crank or turn over the
engine until the existing rotor tip comes to rest where it is
aligned directly with one of the spark plug terminal posts
of the cap.
2. Install the Adapter Base using the four supplied Truss head
Phillips screws and flat washers. Note that the Cap Spacer
is slotted (Figure 2). This provides you with an adjustment
for rotor phasing. For additional information on rotor phasing
see the supplied Tech Brief.
Figure 2 Installing the Adapter Base.
3. Install the new rotor using the correct rotor screws for your
application as outlined in the Note at the beginning of this
procedure. When using the over molded hex head bolts,
install the supplied O-rings and belleville washers (dome side
up) as shown in Figure 3, and torque to 30-32 in-lbs. If you
are using the Phillips screws, use only the belleville washers. Figure 3 Installing the Rotor
O-Ring
Belleville
Washer
(dome must
face up)
CORRECT
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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