Chapter 6 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
6-3
Changing Fuel Filters (Center-Bolt Type)
When handling fuel, make sure there are no flames or heat source in the area.
Wipe any spilled fuel completely. Spilled fuel can ignite and cause fire.
The fuel filter (center-bolt type) uses a paper element. It cannot be cleaned for reuse.
When installing a new element, be careful not to damage the element.
Check the threaded sections of the air vent plugs, the bracket, the drain plugs, the center bolts and the seal-
ing washers. If the threads are damaged, replace the damaged part.
1 Close the fuel supply valve to the engine.
2 Clean the area around the fuel filters.
3 Place a fuel receiving tray under the fuel filters.
4 Remove the drain plug and the sealing washers
to discharge fuel from the filter.
5 After fuel is drained, reinstall the drain plug and
the sealing washers.
6 Remove the center bolt, and disassemble the
fuel filter unit.
7 Clean the inside surface of the case and O-ring
groove.
8 Wipe off fuel from element mounting surface of
the bracket and external O-ring seal surface with
a cloth.
9 Use the O-rings provided in a new filter element kit to replace old parts.
10 Reassemble the fuel filter unit.
11 Tighten the center bolt to 63.7±4.9 N·m (6.5±0.5 kgf·m) [46.98±3.61 lbf·ft].
12 After replacing the fuel filter, open the fuel supply valve to the engine, then bleed air from the fuel system.
Note: Regarding bleeding of the fuel system, refer to "Bleeding Fuel System" (3-2).
13 Start the engine and let it idle for several minutes.
14 Check the fuel filter mounting sections for fuel leakage. If fuel leakage is found, disassemble the fuel filter
and check the O-rings for damage. If there is no gasket damage, reassemble the fuel filter.
fig.6-5 Changing fuel filters (center-bolt type)
Washer
Sealing washers
Retainer
Center-bolt
Element
O-ring
Bracket
Air vent plugs
Sealing washer
Drain plug
Case
O-ring
Element kit
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