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LP Engine G430(3.0L) Maintenance
4. Remove cover (5), magnet (4), spring (3) and
filter element (2) from bottom cover (1).
5. Replace the filter element (2).
6. Check bottom cover O-ring seal (6) for damage,
Replace it if necessary.
7. Install the filter element (2), spring (3), magnet
(4) and cover (5) on bottom cover (1). Align the
scribe line on the covers.
8. Install the cover retaining screws. Tighten the
screws in a sequence opposite each other.
9. Open the fuel valve by slowly turning the valve
counterclockwise.
10. Crank the engine only enough to produce a
vacuum at the fuelock. Turn the ignition key
switch off.
11. Check the fuel lines and fittings for leaks with a
soap solution. Make repairs if necessary.
Test fuel lock (electric)
●
Start engine.
●
Locate electrical connector for fuel lock.
●
Disconnect electrical connector.
●
Engine will run out of fuel and stop in a short period
of time. (The length of time increases with any
increase in distance between the fuel lock and the
pressure regulator).
Inspect pressure
regulator/vaproizer
See, pressure regulator/vaporizer in LP fuel system
section
Inspect LP mixer
(standard LP truck)
See, LP mixer in LP fuel system section.
Inspect variable venturi air/fuel
mixer (low emission LP truck)
See, Variable Venturi Air/Fuel Mixer in LP fuel system
(Low emission version) section.
Inspect complete exhaust
system for leaks, damage
●
Pertorm Visual inspection of exhaust system.
●
Repair any/all leaks found.
Engine Control Unit (ECU) and
others (low emission LP truck)
The commander, oxygen sensor and vacuum control
solenoid are not serviceable. If faulty, they must be
replaced. See Trouble Shooting Section.
5
4
3
2
1
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