Crank pulley installation – Paxton Superchargers Universal Big Block Mopar 440 Carbureted System User Manual

Page 23

P/N: 4809662

02NOV10 v2.0

Section 6

CRANK PULLEY INSTALLATION

*** NOTE ***

Depending on the model year of the vehicle, the bolt

pattern on the Harmonic Balancer will either be an

OFFSET or SYMMETRICAL bolt pattern. The

OFFSET pattern has a single hole that is offset in the

circle. You will need to determine which pattern

your vehicle has and proceed accordingly.

6.1 CRANK PULLEY INSTALLATION

(OffSET BOLT PATTERN)

Locate the 10-rib Drive Assembly.

B. To assemble the crank pulley assembly on an off-

set bolt pattern, install six 5/16-18 x 3.25" socket

head bolts with a drop of blue loctite on each

fastner and NO washers through the counterbored

holes of the crank pulley spacer, and through the

factory crank pulley. Be sure the counterbores

face the front of the vehicle. (See Fig.6.1-a.)

C. Install the assembly onto the engine balancer and

secure using the installed hardware.

*** NOTE ***

Make sure that the pulleys are seated and piloting

correctly when securing. Use criss-cross torquing

sequence

D. Using the six 5/16-18 x 1.5” bolts with a drop of

blue loctite on each fastner and washers, install

the supplied 10-rib drive pulley on to the pilot of

the crank pulley spacer using the 6 bolt symmetri-

cal hole pattern in the supplied pulley. Make sure

the pulley is fully seated and tighten in crisscross

pattern.

6.2 CRANK PULLEY INSTALLATION

(SYMMETRICAL BOLT PATTERN)

A. Locate the 10-rib Drive Assembly.
B. To assemble the crank pulley assembly on a sym-

metrical bolt pattern you will first need to remove

the threads from the six threaded holes in the

crank pulley spacer using a 21/64 drill.

C. Assemble the crank pulley assembly as follows:

install six 5/16-18 x 3.75" bolts with a drop of

blue loctite on each fastner and washers through

the provided 10-rib crank pulley, through the sup-

plied crank pulley spacer (previously drilled), and

through the factory crank pulley. Make sure the

spacer pilot is seated in the supplied 10-rib pulley.

*** NOTE ***

Some supplied crank pulleys may have multiple bolt

patterns to fit different applications. Be sure to select

the bolt pattern that matches the stock crank pulley.

D. Install the crank pulley assembly onto the engine

balancer and secure using the previously installed

hardware.

*** NOTE ***

Make sure that the pulleys are seated and piloting

correctly when secure.

Fig. 6.1-a

Fig. 6.2-a