Troubleshooting
7. Engine stops slowly or not at all CAUSE
REMEDY
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The by-pass valve on the injection pump is blocked in the reverse direction
Change by-pass valve.
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Leakage in the system, leaking unions
Check all hose and pipe unions are tight, including those which go to the fuel supply side of the tank via the pre-filter.
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The electrical pull solenoid does not work
Check the pull solenoid current drain, which should be 1 A (24 V) or 2 A (12 V), or use an ohm meter to measure across pins 1 and 2 on the solenoid connector. Coil resistance should be between 8–30 Ω (0 Ω = short circuit, ∞Ω = open circuit).
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Cable breakage and connector for fuel shut-off valve
Measure the valve connector, pins 1 and 2 with a multimeter at the same time as the stop is activated by the ignition key on the instrument panel.
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Plunger in fuel shut-off valve binds because dirt has got into the valve –
pre-filter missing
Install a pre-filter.
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fault occurs during commissioning. Dirt in tank installation not cleaned out after installation
Dismantle and clean dirt off the fuel shut-off valve. Clean the tank installation.
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Faulty fuel shut-off valve
Please refer to Fuel shut-off valve, fault tracing, pages 95–97 for the fuel shut-off valve.
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The electrical pull solenoid is able to keep the solenoid pulled at very low voltages (applies to installations where the solenoid is live during operation).
Use a voltmeter to check that there is no residual voltage on the electrical pulling winding of the valve during the stop operation
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