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HOW TO ENSURE YOUR VEMO STARTER/ALTERNATOR PERFORMS?

To ensure that your VEMO starter/alternator works normally, we would like to point out several possibilties that could affect the poor performance, which you should avoid and some suggestions to make certain that the product you bought from us performs as guaranteed.

1. Battery:

• Perform a visual battery check – general condition and clean properly.
• Ensure that the contact points are not corroded.
• Ensure that the connection cables to the battery are fully insulated. Cracked rubber insulator or exposed copper wires may result in short-circuit.
• Disconnect the negative pole from battery before work.
• Ensure that the battery is fully charged and in working condition.
• Replace faulty battery with a fully charged one prior to fixing the starter/alternator.
  Tips: Apply grease to the connection points (connection shoes) to prevent corrosion.

2. Sprocket:

• Ensure sprocket is cleaned and not rusty or damaged.
• Improper fitting of sprocket can cause damage.
• Do not use heavy tools to remove old starter, this can cause damage to the sprocket or flange of housings which leads to imperfect fitting of the new starter.
• Imperfect fitting can damage bearings of starter/alternator when engine is turned on.
• Strong cleaning agent can cause malfunction to the starter/alternator, avoid excessive use of it when cleaning engine or the starter/alternator bolts/flanges.
• Counter bushing not renewed: a worn out counter bushing may cause damages of the starter.

3. Bolts:

• Ensure all bolts on starter/alternator are tightened (no loose fit).
• Loose bolts will result in imperfect fitting that produces gap in between flanges and will hamper the performance of the starter/alternator (noise). Damage of bearings, sprockets and flanges can occur.

4. Belting (Alternator Only):

• Ensure belt is in good condition. No cracks or hardened otherwise belt should be replaced prior to installing the alternator.
• Improper fitting of belt can cause damage to the pulley and bearing.
• Ensure belt tension is correct: Too tight will cause damage to bearings. Too loose, belt can slip through and cause damage to belt, bearings and engine.

5. Ignition:

• Ensure that the ignition switch is in a working condition.
• Ensure that the battery indicator light on the dashboard is off when the engine is on. A soft light indicates that battery is not charging properly, start from beginning.
• Damaged ignition start switch: continuous starting can cause thermal overload of the starter. A damaged ignition lock may lead to a short-circuit of the starter.
• Wrong adjusted diesel injection pump: a wrong adjusted start of fuel delivery can damage the starter through a backstroke.
• Wrong adjusted ignition (Otto-engine): a wrong adjusted moment of ignition can damage the starter through a backstroke.

6. Oil:

• Contaminated/overaged engine oil: a silty oil inlet and return at the vacuum pump can lead to a breakdown of the alternator.