Fuel System (For 2.3L/3.0L/4.0L) Precaution; Fuel Pressure And Servicing Fuel System Releasing; Preparation - Mazda B-Series 1997 Workshop Manual

FUEL SYSTEM (FOR 2 . 3 ~ 1 3 . 0 ~ I 4 . 0 ~ 1
FT
PREPARATION
SST
49 UNOl 010
Fuel
pressure
gauge
49 UNO1 052 For
fuel supply
Spring lock line removal
coupling
tool (112 in.)
(for 2.3L / 3.OL)
49 TO88 OAO
NGS set
\ \
VALVE
I
WF1038-A 4BUOF3-122
For
inspection
of fuel
pressure
PRECAUTION
Fuel Pressure and Servicing Fuel System Releasing
Fuel in the fuel system remains under high pressure when
the engine is not running.
1.
Before disconnecting any fuel line, release the fuel
pressure from the fuel system to reduce the possibility of
injury or fire.
(1) Connect the SST to the fuel pressure relief valve
(SchradeP valve), located on the fuel distribution
pipe.
(2) Place the SST drain hose in a suitable container.
For
inspection of
PCM terminal
voltage and
inpuffoutput
devices
(3) Depress the pressure relief button until the pressure
is released.
49 UNO1 006
Fuel line
coupling
tool
(for 4.OL only)
49 051
fuel return
Spring lock line removal
coupling
tool (318 in.)
(for 2.3L / 3.OL)
Alternate method
(1)
Disconnect the inertia fuel shutoff switch.
(2)
Crank the engine for
15 to 20 sec.
to relieve the
pressure.
2.
Use a rag for protection from fuel spray when disconnect-
ing the hoses.
3.
When inspecting the fuel system, use the SST.
For
fuel
return line
removal