Vortech 1997-2003 Ford 5.4 F-150/Expedition - Manual (Page 8)

P/N: 8N020-130
© 2005 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured.
19SEP05 v1.0 97-03F150PwrClr(8N020-130v1.0)
2
2. Supercharger Reclocking
A. Loosen and remove the six 1/4-20 cap
screws and retaining plates that hold the
compressor housing to the gearcase.
B. Carefully rotate the compressor housing to
the specified location as shown. (See Fig.
2-a.)
C. Evenly retighten the six cap screws, torque
to 60 in/lbs (5ft/lbs).
D. Remove original Ø3.33" supercharger pul-
ley from the supercharger and install the
supplied Ø2.95" pulley. Use heat on the
pulley if necessary.
Fig. 2-a
F-150 5.4L H.O. Supercharger Clocking
NOTE: If the compressor housing does not
rotate freely relative to the gearcase, DO
NOT FORCE IT. SERIOUS SUPERCHARG-
ER DAMAGE MAY OCCUR. The
machined mating surfaces are designed
to prevent pressurized air from escaping
and have minimal tolerances. If the hous-
ing will not move or is very tight, contact
Vortech Engineering immediately at
(805) 247-0226 and ask for our service
department for further assistance.
NOTE: Included in this kit is a smaller than orig-
inally supplied supercharger pulley. This
new pulley is recommended to achieve
best performance results. Removal of the
factory sealed pulley will reduce the
supercharger warranty from three years
to one year unless the supercharger unit
(with the original pulley still attached)
and new pulley are sent into Vortech for
removal, installation and re-sealing. If
supercharger warranty is not a concern
or if the supercharger warranty has
expired, the pulley may simply be
removed and replaced with the new part
supplied. Be aware that hammering/pry-
ing etc. on the supercharger may dam-
age precision parts.