1/9/2024 0 Comments Car timing belt broke![]() Most times, what we bring our vehicle in for is not always the issue we thought it was. The problem is always the time to get it in and also the price for labor and parts. Timing belts should last for more than 90,000km before needing replacement (check your service manual for how often your vehicle’s manufacturer recommends replacement), but getting your vehicle serviced on schedule should catch a failing timing belt before disaster strikes and give you the peace of mind that all is well.Ī quick quote through AutoGuru will let you easily schedule and prepare for major services that include timing belt replacements.We have all been to the mechanic with our vehicle. So, the best bet, as is always the case, is prevention. all in all, a pretty dire scenario.Īnd an expensive one too – repairing all this damage may get so expensive that replacing the entire engine may be a more viable option. ![]() In the highly pressurised environment of the cylinder, where mini-explosions are taking place and components are moving at thousands of strokes per minute, the damage that can be caused is tremendous.Īt the very least, the pistons will collide with and bend the valves, but these impacts can also damage the camshaft, the pistons themselves, the lining of the cylinder, seals and bearings. If something is off with the timing, however, and if the belt is in some way stretched or damaged or, indeed, completely broken, then the piston and valves may come into contact with each other. ![]() The important thing to note here is that when the valves are open, they move down into the cylinder and into a space that is also occupied by the piston at a different time in this cycle.Īnd this why the timing of all this movement is important and why the timing belt is so critical – it is connected to both the camshaft and crankshaft ensuring they are synchronised. The fuel and air mixture enters and the process starts again. As the piston begins moving back up the cylinder, the exhaust valve closes and the intake valve opens.Through its connecting rod, the piston turns the crankshaft. Meanwhile, the piston that sits inside the cylinder and below the valves is forced into movement by the ignition of the fuel and air mixture. When the valves open and close is controlled by the camshaft. One valve – the intake valve - lets in the combustible mix of fuel and air, while the other – the exhaust valve – removes the gases that are left after that ignition. ![]() Well, let’s take a closer look at what’s happening in the engine first.Īt the top of each cylinder in an internal combustion engine are at least two valves. So why is the timing belt so important in this process? Well you can find out more about these components on AutoGuru’s crankshaft and camshaft pages but, put simply, the crankshaft uses the force of moving pistons to create the rotational energy to drive the car, while the camshaft controls the opening of the valves that let fuel in, and exhaust gases out, of the cylinder after the ignition process. Hang on a minute, I hear you say, what’s a camshaft and a crankshaft? The simple answer is a timing belt should last 90,000km or more, and it can be an expensive disaster if it fails! So what is it?Ī timing belt is literally that – an exceptionally strong, toothed, belt that is located next to the engine and is designed to keep the crankshaft and the camshaft properly synchronised, or ‘timed’. ![]()
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