Ticking NoiseĮngine noises should never be ignored. These early warning signs should be looked at before engine damage occurs. Even if the engine isn’t misfiring yet, you might notice it just isn’t performing the way it once did.
It can also slip on the camshaft, leading to the cylinders opening or closing before they should. If the engine misfires, you are looking at the timing of the valves being off, which can be created by a bad timing belt.Īs the timing belt wears, it affects the rate that your engine is firing at. Because the timing belt is needed to keep everything running in sync, any issues can lead to performance trouble. Poor performance is a strong symptom of a failing timing belt. In extreme cases, the engine won’t turn over at all.Īs a maintenance task, you can avoid timing belt issues before problems get worse by looking at the most common symptoms. Here is a more detailed list of the signs of a bad or failing timing belt to look for: 1. Additionally, you might hear a ticking sound, see the Check Engine Light, or have issues with the exhaust. The engine may misfire, or there could be a lack of power. The most common symptoms of a bad or failing timing belt center on performance. I also look at where the timing belt is found and analyze how often it should be replaced. In this guide, I look closer at the top symptoms so you know when to replace the vital component. That’s why it’s important to recognize the symptoms of a bad or failing timing belt before it leaves you stranded. If the car motor doesn’t remain in sync, performance suffers, and you run into trouble driving. Knowing, not just “doing”, that’s the Atlantic Motorcar Center way.Timing matters, especially when it comes to your car engine. Our team of Service Specialists is here to help, for even the newest autos! (207) 882-9969. Questions, or if we can be of help in any way with service on your Audi, BMW, Mercedes, Mini Cooper or other European (and now Japanese) import, please contact us.
This job, when properly done, and regular, proper maintenance followed, this update/repair should last the life of the car.įor more information on AGM batteries and other types of batteries, please call one of our Service Advisors, they can offer valuable information on various types of batteries and which battery works for you.Īt Atlantic Motorcar, we’re all about providing our customers not only Great Service but also Value. We understand that “ An ounce of prevention is worth a pound of cure.” (my mom would be proud I remembered that.), in other words, preventing, or catching problems like these brake lines early, can save you more than just money. Often overlooked, for durability and reliability, it is critically important that all the seals and gaskets associated with this job be replaced when the engine is open and apart, particularly the seals on the VVT arm for the intake camshaft, which has a Variable Valve Timing (VVT) mechanism, and that the arm be inspected for wear or damage. It is important to use all updated parts, in particular not to reuse the tensioner bolts, as new designed bolts have been issued that must be installed. We have developed has released improved metal tensioners, forged roller chains, metal backed timing chain guides which are considerably more durable that the original design. This necessitates removal of the cylinder heads and rebuilding, or replacement of the complete engine assembly.
Failure of the chain will cause severe engine damage, as the engine valves are no longer synchronized, allowing them to strike the pistons, causing damage to the valves. The plastic/nylon guide plates on the chain tensioner fail, causing the chain to slip, or come loose and fall into the area between the sprocket and chain, causing timing chain failure. On the early XK8 and XJ8 Jaguar vehicles equipped with the 4.0 and 4.2 liter motor (supposedly was improved on the 4.2 liter engines, but we have seen many of these now failing as well, there is a known flaw in the upper timing chain tensioner. The Check Engine Light is often on, but may not present on all cars. The engine noise may also be accompanied by a rough or uneven engine idle. What happens is that the chain tensioner fails, causing the chain to slip or completely break like you see here, causing damage to the valves.Ī noticeable engine noise while idling or during a cold start can indicate a timing chain tensioner problem. On the early XK8 and XJ8 Jaguar vehicles, there is a known flaw in the upper timing chain tensioner. This is an excellent example of what you do not want to see happen to your Jaguar, you’ll note the broken secondary timing chain, and consequently the damaged engine valves.
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