Flame Arrestor; G-F Orce Uel Ystem - Marine Power 5.3 GEN V DI Owner's Manual

10.
Engine Maintenance

Flame Arrestor

Clean the flame arrestor regularly.
1. Remove fastener from flame arrestor.
2. Clean with a suitable solvent and blow dry.
3. Reverse steps to assemble.
G-Force Fuel System
1. Position catch basin under filter.
2. Remove cooling cover.
3. Unscrew canister bowl.
4. Pull element down from pump.
5. Push new element (Part #396007) on pump until click is
felt.
6. Replace O-ring (included with filter).
7. Re-install canister bowl on unit - snug tight only.
8. Two 10-second key ups should prime system.
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Fuel Flow Schematic
Low Pressure Feed Pump is 4-7 PSI at outlet.
Inlet has a small screen inside fitting. This screen
may be flushed by reversing polarity on electrical
connectors and operating pump in reverse. High
pressure Feed Pump must be unplugged during this
procedure.
Low Pressure
Feed Pump
IN OUT
Negative Positive
Terminal Terminal
Not used on LT4
High Pressure Feed Pump
Outlet (60 PSI)
Fuel Filter
25