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Overhauling a starter motor To make the engine start it must be cranked in order for air and fuel to be sucked into the cylinders and compressed. The powerful electric starter motor provides this turning force to the flywheel of the car’s engine by drawing electric current from the car’s battery. A large switch is used to modulate the current flowing from the battery to starter motor. This switch is controlled by a solenoid. The starter motor starts when you turn the ignition key. If the starter motor gets weak, it will not allow the engine to crank as soon as you turn the ignition key. The two components inside the starter that commonly fail are the solenoid (which sends electrical signals to the starter motor to activate) or the starter motor itself. Internal components inside the starter can be replaced but most automotive manufacturers recommend that you replace the entire starter motor itself to avoid future breakdowns. The following are the signs that your starter is getting weak

AN AUTO MECHANIC’S GUIDE TO THERMOSTAT REPLACEMENT IN CARS   Ever wonder what helps to regulate the temperature of a car’s engine so it won’t conk out while on the road? Sitting near the top of the engine, the thermostat helps to keep the temperature at a nice 82 to 99 degrees Celsius. Let’s say the car’s engine is hitting those high temperatures, then the thermostat will kick in, opening a valve that allows the coolant do its job and bring temperatures down again. Unfortunately, like any other part of a vehicle, the thermostat can get stuck, break, and cause a whole host of engine problems as a result. Fortunately, though, there are experienced mechanics ready to repair and replace thermostats to get drivers back on the road. Do you love cars and working on engines? Here’s a quick guide on thermostat replacement! What a Pro Mechanic Considers Before Starting a Thermostat Replacement Professional mechanics won’t necessarily grab their wrenches and open up an engine cylinder at the firs

Engine Water Pump Construction Car’s water pump   is creating forced cooling fluid circulation in the   cooling system   of the   engine . Some water pumps are structurally combine with fans and have a common drive. So the engine water pump installs on the front end of the   cylinder block . The water pump housing 3 consists of two parts:  one part of the housing is cast from iron and attach to another, which is made together with the cover of the block of distribution gears of aluminum alloy. The water pump shaft  2  and the fan hub  1  rotate on two ball bearings  14  install into the housing  3 . Special snap rings and spacer sleeve keep ball bearings from shifting. There are seals to hold lubricant and to protect against contamination. Engine Water Pump Construction Engine Water Pump Construction 1 – fan and pulley hub; 2 – shaft; 3 – housing; 4 – inspection hole for the release of lubricant from the housing; 5 – lubricator; 6 – water pump impeller; 7 – a control aperture for an ex

  How to change an alternator Changing your alternator isn’t a job for the average DIY enthusiast. It requires someone with a good knowledge of motor repairs and mechanical competence. If you’re not confident about the task in hand, you’d be much better advised to leave it to the professionals. An alternator is an electrical device located in your car’s engine bay. Its job is to generate electricity to charge the battery. It does this through a connection to the engine drive, and while it’s rotating, it creates electricity. The electricity is created when the rotor, a selection of spinning magnets, passes at high speeds over a nest of copper wires, called the stator. A regulator is also part of its components, to make sure the right amount of electricity flows around the vehicle. You’re going to need a range of tools, the new alternator and a replacement alternator belt. Among those tools, you’re going to need a belt tensioner tool, a voltmeter, and a few other bits and pieces to keep