Fuel Systems; System Testing - Four winns V458 Owner's Manual

I - 1 DIESEL FUEL SYSTEMS
The diesel fuel system used in the V458 is designed to
meet or exceed the requirements the National Marine
Manufacturers Association and the American Boat and
Yacht Council in effect at the time of manu fac ture.
NOTICE
Use only clean, dry fuel of the type and grade
recom mend ed by the engine manu factur er.
The use of incorrect or contaminated fuel can
cause engine malfunction and serious
damage. Engine damage resulting from the
use of incorrect fuel is consid ered misuse of
the engine and will void the engine warranty.
Refer to the section on Fuel Requirements in
the engine manual for information on fuel
specifi cations.
In twin engine applications, the port and starboard fuel
tanks are locat ed for ward and outboard in relationship
to their respective engine. See Figure I1. The capacity
of the fuel tank(s) may be found on our website at
www.fourwinns.com.
Fuel Valve System
Port
Fuel Tank
Fuel Systems - Section I
Port
Engine
Figure I1: Twin Fuel Tank Locations
The V458 models are equipped with twin fuel tanks
and come with a manual fuel valve system.
See Figure I1. This fuel valve system allows you
to manually select which fuel tank you want your
engines to draw fuel from. The diesel generator uses
a separate fuel pick-up (not shown). Please see
Figures I9 and I10 at the end of this section for fuel
valve components listing and operations.
A. System Testing
All fuel systems have been factory in spected and
pressure tested in accordance with regulations
in effect at the time of manufacture. Additionally,
each fuel tank must pass rigid tests and inspections
performed by the fuel tank manu facturer.
Prior to taking delivery, it is important that a full
inspection be made of the entire fuel system by
the selling dealer. An entry on the Four Winns
Pre- Delivery Inspection Form portion of the Warranty
Registration Card will attest to the deal er's perfor-
mance of this service.

Fuel Systems

Starboard
Fuel Tank
Starboard
Engine
Owner's Manual Page 87