Narrow Boat Engine Maintenance and Repair by Stephanie L Horton

Author:Stephanie L Horton
Language: eng
Format: epub
Publisher: Crowood

Circuit testing: To test and trace a fault on the starting systems using an electrical tester undertake the following tests to identify the location of a fault. The engine does not need to be running to perform these tests, but the ignition must be on.

Set the multimeter to the Voltage DC setting (V--), choosing a voltage range just higher than you are measuring. Take a reading from the battery to provide a base voltage level for reference. Please note that a battery that has less than 11.8V present needs to be charged before any further measurements are taken.

As there are so many variations and modifications on ignition panels, it will not be possible to provide instruction on all checks. Therefore this section concentrates on identifying if there is an issue present on the ignition system. It is recommended that if a problem is found you seek assistance from a professional unless you have more in-depth experience or training. This test requires you to identify a number of components and the terminals required in order to pick up the correct readings.

Take the negative (black) probe, connect it to the negative terminal of the battery and leave it in position during the whole test. Where possible, use clips as these will provide a secure connection whilst you test the circuit. If you cannot reach the battery use any bare metal on the engine/bell housing.

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