At Midas Bredasdorp we understand that when you turn the key in your car’s ignition switch, you expect the engine to start smoothly, right? However, several components work together to get the engine running, and the starter motor is the one responsible for initiating the engine’s rotation. It creates the required turning over of the engine during the initial ignition process, allowing the fuel delivery and ignition spark from the distributor to the firing order via the spark plugs in the correct sequence. Without a functional starter motor, your car won’t move. Let’s start by discussing some of the common causes of alternator failure that you should be aware of before replacing your car’s starter motor.
These are:
- Thermal overload caused by prolonged activation, often associated with constant engine cranking.
- Mechanical overload resulting from the starter failing to disengage after repetitive cranking.
- Heavy contamination on the earth and positive terminals of the wiring system.
- Connection errors or incorrect contacts completing the required electrical circuit.
To determine the root cause of the issue, you can check the power supply by using a multimeter, available from your local Midas Bredasdorp. If there is sufficient voltage, then it’s likely that the starter motor itself is the problem, in this case you will need to replace the starter motor with a new one.
Here are the steps to remove the old starter motor and replace it with a new one:
Disconnect the earth cable from the battery:
This step is critical as it protects the electrical circuit from accidental current damage.
Remove all electrical connections from the starter motor and mark them, if possible:
Marking the connections allows you to reconnect them to the correct terminals when you install the new starter motor.
Check all the cables for visible corrosion or damage on the cable lugs:
If there is any damage, it is best to replace the cable entirely.
Loosen the starter securing bolts and remove the starter motor:
Once all the cables/wires have been disconnected, you may need a socket wrench to loosen the bolts.
Inspect the starter motor and the flywheel ring gear:
Check for any possible teeth profile damage, wear, or contamination. If you find any damage or contamination, it is best to clean or replace them.
Make sure that you have the correct part:
Compare the new starter motor with the old one before installing it to ensure that it has the correct specifications.
Mount the new starter:
Mount the new starter motor on the vehicle using the original bolts that were securing the old starter motor.
Connection cables:
Install the connection cables to the new starter motor, ensuring that the cables are fitted correctly as marked on the old starter.
Note:
Follow the manufacturer’s specifications to avoid causing damage to the starter motor and its cables. Make sure that you connect the right cables to the correct terminals.
Implement a functional test:
Reconnect the earth cable to the negative pole on the battery, which you have earlier removed, check that it is secure, and implement a functional test. A functional test involves turning on the ignition switch and checking whether the engine cranks and starts.
In summary, replacing a starter motor is a simple task that requires a few basic tools and some technical knowledge. However, it is best to seek the help of a qualified mechanic if you are unsure about the process. Remember, the starter motor plays a crucial role in your car’s operation, and it is essential to keep it in good working condition.
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Midas Bredasdorp for all the automotive parts, trailer, and wheel accessories you could need, and if we do not have it, we will source it for you. Please follow us on social media to stay up to date with our latest sizzling specials and promotional offers. (There are currently over 300 franchised outlets across Southern Africa, including Botswana, Lesotho, Mozambique, Namibia, Swaziland, and Zimbabwe.)
