P/N: 4MB020-010
©2003 Vortech Engineering, LLC
All Rights Reserved, Intl. Copr. Secured
06DEC02 V1.0(4MB HP500 v1.0)
1650 PACIFIC AVENUE • CHANNEL ISLANDS, CA 93033-9901 • (805) 247-0226
FAX (805) 247-0669 • www.vortechsuperchargers.com • M-F 8:00 AM - 4:30 PM PST
A. PLEASE TAKE SPECIAL NOTE: Operating the
vessel without ALL the subassemblies com-
pletely and properly installed may cause FAIL-
URE OF MAJOR COMPONENTS.
B. With a proper water supply connected to the
engine, start the engine. Observe the fuel pres-
sure with the engine running (vacuum hose to
the fuel regulator is still disconnected). Readjust
pressure to 49-50 psi if required.
C. Re-attach the vacuum hose to the fuel regulator.
Fuel rail pressure should drop slightly. If fuel
pressure does not drop, ensure that the vacuum
hose is not kinked.
D. Water test the vessel with the fuel pressure
gauge still attached. Important! When water
testing the vessel, be sure the fuel pressure
increases to 49-50 psi at wide open throttle and
full engine load at 5000-5200 RPM. If fuel pres-
sure does not reach this level, abort the run
immediately. Check to see that the vacuum line
to the fuel regulator has not been kinked or come
loose. If the vacuum hose connection is intact,
the factory Mercruiser fuel pump may need re-
placement. Contact Vortech for further assis-
tance if required.
E. Read the Vortech Supercharger Limited War-
ranty and Owner's Manual.
13.
FINAL CHECK/FUEL PRESSURE ADJUSTMENT
24
