Checking The Low-Pressure Fuel Pump; Checking The Fuel Filter; Checking The Check Valve - SELVA MARINE Grey Whale 200 EFI Service Manual

Checking the low-pressure fuel
pump
1. Drain the fuel from the vapor separator
and check the condition of the fuel.
NOTE:
• To drain the fuel, see Chapter 3, "Draining
the fuel."
• If the fuel is dirty, check and clean the fuel
lines.
2. Check the low-pressure fuel pump.
NOTE:
• To check the low-pressure fuel pump, see
Chapter 8, "Checking the low-pressure fuel
pump and high-pressure fuel pump."
• To check the fuse, see Chapter 8, "Fuse
holder."

Checking the fuel filter

1. Check the fuel filter. Replace the fuel fil-
ter if there is dirt, residue, or external
damage.

Checking the check valve

1. Connect the special service tool to the
check valve port as shown.
6AL3J11
2. Apply positive pressure to the check
valve port.
3. Check that air comes out of the opposite
end of the check valve. Replace the
check valve if no air comes out.
4. Connect the special service tool to the
opposite check valve port as shown.
5. Apply positive pressure to the check
valve port.
6. Check that no air comes out of the oppo-
site end of the check valve. Replace the
check valve if air comes out.
S6AL4260
Low-pressure fuel pump
Vacuum/pressure pump gauge set:
90890-06756
1
2
3
4
5
6
7
8
9
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