In fact, most of them are running these belts. These interference engines are also using timing belts. So, if you are trying to learn the timing chain symptoms, you probably have an interference engine. Even if this chain breaks or gets stretched, the engine will keep working and no damage will be done to it. On these engines, there is a chain, but this chain is not a timing chain. Non-interference engines on the other hand are engines like the classic pushrod V8s that are still widely used. Meaning that the valves and the pistons will collide and cause carnage. If they don’t they would suffer internal damage. In order for these engines to work properly, they have to have proper timing. Interference engines are the ones that have the camshafts located on the top of the engine head. If not, keep up with us for a bit.īefore we learn what is a timing chain we need to understand what are interference engines and what are non-interference engines. If you are feeling that you know this stuff, you can just jump on the causes or the timing chain symptoms. This would be quite useful for beginners that are not into mechanics and can’t tell if their car is running a belt or a timing chain or maybe none of the two mentioned. So, before we dive into the timing chain symptoms, let’s first cover some of the basics and learn what is a timing chain in general. So, if you want to learn more, follow along. And later on, we are going to explain precisely that, how this thing is diagnosed, replaced, and at what cost all this comes. After learning the causes and the symptoms, you will be ready to tackle this problem. Then we will learn the probable causes for the timing chain to fail and also the timing chain symptoms. After reading this article, you are going to be properly informed on this topic and make sure that you make the right conclusion and decision when it comes to the timing chain itself.įirst, we are going to start from the basics and that is what is a timing chain and why it is so important. But it is a good thing that you are here where we will learn all the symptoms of the timing chain and cover a lot on this topic in general. ![]() That’s why you shouldn’t ignore these timing chain symptoms and make sure that you replace the timing chain on time. Not to mention the potential for your engine to destroy itself if they are left unchanged when the symptoms start to show up. ![]() Namely, because these things are really expensive and cost a whole fortune to replace. Having a problem like a bad timing chain can be a really frustrating thing to deal with. Chains also provide a small measure of dampening, due to the friction present between the sliding links/rollers.īelts and chains are also more capable of absorbing dimensional changes between the crank and cams, as the engine heats up.Įach drive system has it's benefits and deficiencies, but spur gears seem to be the choice of current F1 engine designers.Are you hearing some rattling noises from the front of the car and do you also have performance issues? If this is the case, you might be experiencing some timing chain symptoms. Roller chains are more accurate than belts, but due to their greater mass, they are inertia limited. They inserted an idler gear that was split in two and spring loaded ( it's called a "scissor gear").īelts are less accurate and durable than chains or gears, but provide a dampening effect through hysteresis within the rubber belt carcass. Honda did something similar with the cam gear drive on their superbike engines a few years ago. Their solution was to put a torsionally compliant gear assembly in the camshaft gear train. Cosworth found this out the hard way with their DFV engine. But gears are also most suceptible to failure due to torsional vibration effects between the crank and cams. Timing gears are most accurate and efficient.
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