PN85501 datasheet(3/8 Pages) MALLORY

3 / 8 page

INSTALLATION INSTRUCTIONS

MSD • W W W. M S D PE R F OR M A NC E . C OM • ( 91 5 ) 8 57 - 5 20 0 • F AX ( 91 5 ) 8 57 - 33 4 4

CENTRIFUGAL ADVANCE CURVE

SELECTING THE ADVANCE

SPRINGS

The rate, or how quick the advance comes in

is determined by the type of springs which are

installed on the distributor. The MSD distributors

are equipped with two Heavy Silver springs

installed. These will give you the slowest

advance curve possible (Figure 2). The parts

kit contains two additional sets of springs which

can be used to match the advance curve to

your particular application. Refer to the Spring

Combination Chart (Figure 3) for combinations

that can be achieved.

To change the springs, remove the cap and

rotor and use needlenose pliers to remove the

springs. Be sure the new springs seat in the

groove on the pin.

Figure 4 Advance Curves.

Figure 2 The Factory Equipped Curve.

Timing Curve From Factory

Figure 3 Spring Combination Chart.

SPRING COMBINATION

RATE OF ADVANCE

FIGURE 4

2- Heavy Silver

SLOWEST

1- Heavy Silver

1- Light Blue

1-Heavy Silver

1-Light Silver

2- Light Blue

1- Light Silver

1- Light Blue

2- Light Silver

FASTEST

PN85501 Datasheet(PDF) 3 Page - Mallory performance club