Grady-White Boats Chesapeake 290, Owner'S Manual

Page: 43 / 105

M
A I N T E N A N C E A N D
S
E R V I C E
6–7
F
UEL
S
YSTEM
M
AINTENANCE
To determine whether a fuel flow problem is in your fuel system or your engine, follow this
simple method. Connect a six-gallon (22.7 L) portable tank to the engine and operate the engine.
If the problem persists, the likely cause is with the engine itself. If the problem goes away, the
source must be in the boats’ fuel system. One component that should be inspected if a restriction
occurs is the anti-siphon valve. If fuel does not flow properly through this part, it must be cleaned
and/or replaced.
Annually conduct a detailed inspection of fuel system components, especially those hidden
from routine inspection. Replace any fittings, deteriorated hoses, clamps or connections
immediately. Fuel filter/water separators should be replaced at least annually.
W A R N I N G
Do not remove the anti-siphon valve and replace with a regular barb. Modification or removal
of the anti-siphon valve could allow a dangerous accumulation of fuel and vapors in the hull in
the event of a fuel system leak.
!
Fill (Installed On Deck)
Carbon Canister
Fuel Tank Vent
(Installed On Hull Side)
Stainless Clamp
Fill
Vent
1-1/2" Fill Hose
(USCG Type A2)
5/8" Vent Hose
(USCG Type B2)
Stainless Clamps
Hull Harness
Green Jumper
(Aluminum Tanks Only)
Manufacturer's Label
3/8" Fuel Feed Hose
(USCG Type A1-15)
Ground Tab
(Aluminum Tanks Only)
Fuel Sending Unit
Pick Up Elbow
Anti-Syphon Valve
Stainless Clamps
Pink (Main) or Pink/White (Aux)
Wire to Fuel Gauge,
Green Ground Wire to Battery (-)
Fuel Tank
To Engine