P/N: 4PFX020-010
©2004 Paxton Automotive Corp.
All Rights Reserved, Intl. Copr. Secured
28JUL04 v1.2(Univ.SBF Carb-4PFX v1.2)
Section 9
CRANK PULLEY AND SUPERCHARGER DRIVE PULLEY INSTALLATION
A. If the original crank pulley was secured using
three bolts, install the supplied crank pulley
(and spacer, if separate) using the correct bolt
pattern. If the original crank pulley was
secured with four bolts, mount the supplied
crank pulley directly onto the damper face.
*** NOTE ***
Some supplied crank pulleys may have multiple
bolt patterns to fit different applications. Be very
careful to select the bolt pattern that matches the
stock crank pulley.
B. Select from the supplied bolts to get 1/2" to 3/
4" thread engagement into the balancer.
C. Seat the crank pulley in the balancer pilot and
tighten the bolts in stages to factory specs.
9.1 CRANK PULLEY AND SUPER-
CHARGER DRIVE PULLEY INSTAL-
LATION
*** NOTE ***
Stock water pump pulleys are approximately 5.7"
in diameter (1965 Mustang). Larger pulleys may
need to be replaced.
*** NOTE ***
Check the vehicle for radiator fan to crank pulley
clearance. If there is interference either space fan
forward or replace with a low profile electric fan.
D. If the supercharger did not come with a pulley
already installed, lightly grease the super-
charger input shaft and/or the supercharger
drive pulley bore. Install the pulley onto the
supercharger input shaft and rotate the pulley
to align the keyways. Slide the square key into
the keyway. Install the pulley retainer assem-
bly into the input shaft and hand tighten.
*** NOTE ***
If the supercharger drive pulley will not slide onto
the shaft DO NOT FORCE IT. Light heating of the
supercharger drive pulley with a propane torch will
aid in installation.
E. Install the belt tensioner plate onto the super-
charger cover with the idler and spacer
mounted on the front side in one of the holes
provided. Loosely install the three supplied
12mm bolts into the supercharger cover. (See
Fig. 9-a.) Install the alternator, power steering
and supercharger drive belt and tension each.
(Do not over tension the supercharger drive
belt.) Press down firmly on the tensioner idler
while tightening the three 12mm bolts.
Tighten the pulley retainer assembly to 30-35
ft/lbs.
Fig. 9-a / Passenger Side Supercharger Belt Routing (Driver Side Similar)
POWER
STEERING
PULLEY
WATER
PUMP PULLEY
ALTERNATOR
CRANK
PULLEY
S
/
C
P
U
L
L
E
Y
TENSIONER
SUPERCHARGER
BELT
9-1
