Checking The Pressure Regulator - SELVA MARINE Grey Whale 200 EFI Service Manual

FUEL
6. Start the engine, warm it up for 5 min-
utes, and then measure the fuel pressure
at engine idle speed. If below specifica-
tion, check the high-pressure fuel line
and the vapor separator.
Fuel pressure (reference data):
260 kPa (2.6 kgf/cm
at engine idle speed
7. Reduce the fuel pressure.
NOTE:
To reduce the fuel pressure, see Chapter 4,
"Reducing the fuel pressure."
8. Disconnect the special service tools.
WARNING
• After measuring the fuel pressure, cover
the end of the hose with a clean, dry rag,
point the hose downward, and then
loosen the drain screw to drain the
remaining fuel from the hose and gauge.
• When storing the fuel pressure gauge,
make sure that the drain screw is tight-
ened securely.
9. Connect the quick connector.

Checking the pressure regulator

1. Reduce the fuel pressure.
NOTE:
To reduce the fuel pressure, see Chapter 4,
"Reducing the fuel pressure."
2. Disconnect the quick connector from the
vapor separator.
NOTE:
To disconnect the quick connector, see
Chapter 4, "Disconnecting the quick connec-
tor."
3. Connect fuel pressure gauge adapter B
between the quick connector and vapor
separator.
4-7
Fuel system
2
, 37.7 psi)
4. Connect the fuel pressure gauge to fuel
pressure gauge adapter B.
5. Disconnect the pressure regulator hose,
and then connect the special service tool
to the pressure regulator.
WARNING
• Gently screw in the gauge until it is
firmly connected to prevent fuel from
leaking out.
• Before measuring the fuel pressure,
make sure that the drain screw is tight-
ened securely.
• Do not loosen the drain screw while
measuring the fuel pressure. Loosening
the drain screw can cause fuel to spray
out creating a fire hazard.
Fuel pressure gauge: 90890-06786
Fuel pressure gauge adapter B:
90890-06942
Vacuum/pressure pump gauge set:
90890-06756
6. Start the engine and let it idle.
7. Check that the fuel pressure is reduced
when vacuum pressure is applied to the
pressure regulator. If the fuel pressure is
not reduced, replace the pressure regu-
lator.
S6P24300E
6AL3J11