Tag: diagram of timing marks

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What Are the Potential Dangers and Costs of Not Replacing Your Timing Belt Regularly?

Expensive damage can be caused to your engine: Many timing belt engines are “interference motors”, which simply means that the valves would hit the pistons if not kept in proper timing. This is not a problem under normal operating conditions but if the timing belt were to break or jump off the gears, the valves of one or more cylinders would strike the pistons and cause severe and costly damage.

If your car has more than the recommended mileage on the timing belt, you may be operating your car on borrowed time and the cost of replacing the belt is MUCH cheaper than having to rebuild or replace the engine because of damage caused by a snapped/worn timing belt.

Parts can be hard to find to repair damage caused by a failed timing belt: It’s obvious that timing belt replacement as a preventive maintenance measure is often ignored. This is so prevalent, in fact, that many car manufacturers and engine parts manufacturers don’t stock major engine components for timing-belt engines after the required 5-7 years because there will be only a handful of these cars still on the road. It can be quite difficult to find crankshafts, pistons, connecting rods, camshafts and the like for these older engines due to the economic infeasibility for the manufacturers to continue producing these parts for the few cars that they estimate will still be on the road.

In fact, many car manufacturers don’t expect timing-belt driven engines to last through more than two timing belts or approximately 120,000-150,000 miles and, moreover, they actually expect many to be taken out of service with the original belt still installed. Sadly, there are hundreds of thousands of 85,000-90,000 mile timing belt cars in junkyards because the timing belt was never replaced. What a waste when these cars could still be enjoying a useful life had the owner just paid attention to the recommended mileage replacement intervals for the timing belt.

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Know What You Are Doing

Many of today’s autos have timing belts. If you keep up with all the necessary services today’s automobiles are engineered to last well over 100,000 miles. Your auto, being in good shape now has 50,000 plus miles on it and you plan on keeping it. You will now have to consider the big expensive service. The Timing Belt.

This timing belt is made of the same basic materials that the other drive (fan) belts are made of. The timing belt is probably one of the more expensive and more important maintenance items you will have to do. Follow your manufacturer’s time and mileage recommendations for this service. Many of today’s engines are called “interference engines”. This means if your timing belt skips or breaks the valve and pistons are no longer in sync and will hit each other causing very extensive damage internally to the point of having to replace the complete engine itself.

If you plan on replacing the timing belt yourself you best be very mechanically inclined. Replacing this belt on a four cylinder engine is not all that difficult if you know what you are doing. Replacing this belt on a six cylinder engine, especially a transverse engine, can be over bearing for the average backyard do-it-yourselfer. If the engine is not an interference type and belt timing is off by a few teeth the worse that will happen is the engine not running properly and the belt has to be re-timed. If the engine is an interference type and the belt is off by too many teeth the valves and piston will hit each other, so by trying to save money you have just ruined the entire engine. Think twice or three times before attempting this belt replacement by yourself. Some things are better left to pros even if it costs more. Don’t forget, at least this way you have a certain warrantee on the repair should something go wrong.

Choosing not to do the timing belt when the service is due can lead to the same engine damage should this belt skip a few teeth or break from age

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Timing Belt Problems – How to Solve Them

Are you facing timing belt problems? Well, this is a rather serious matter because your engine is largely dependent on the smooth running of the timing belt. The timing belt connects the crankshaft, the walls, the camshaft and the Pistons all together. So if one is “out of caliber” there is a chance that you might find yourself having an engine seizing at odd moments. That is because the synchronization which is timed to run in a very well coordinated motion has been disturbed. That is why you need to know all about timing belt problems and how they need to be solved immediately so that your engine does not break down right in the middle of the road.

One of the most common of timing belt problems is not replacing it in time. Your timing belt is going to face the normal wear and tear of any hard worked car component and is going to give way during the passage of time. So it is necessary to get the professionals are expert or mechanic to check out your timing belt problems and replace them whenever necessary. He is going to replace any damaged, cracked or badly worn timing belt.

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When To Replace Your Timing Belt

Timing belt replacement is the “must-do” service operation which every car owner should know about. Along with that knowledge, we should be aware of whether our engine is considered an interference engine or not. These two bits of information can, at a minimum, save us from unexpected breakdown and in the extreme can help us avoid thousands of dollars in repairs.
Without getting too technical, the synchronization between two internal engine parts (the crank and cam shafts) is accomplished with the help of the timing belt. In the process of these two parts moving the valves open and close in close proximity to the pistons. This constitutes an interference engine, because if the timing belt jumps a tooth on the sprocket on which it rides or the belt fails altogether the valves and pistons will “interfere” with each other.

This collision will cause major damage to the engine. The repair bill will, on older vehicles, often exceed the value of the car. On the other hand, a car whose engine is not configured this way will simply lose power or will not start. While this might be more desirable than facing huge repair costs, it is something that is better avoided if possible.

The motivation for preemptive replacement of the timing belt is obvious. But how do you know when to replace it? There is always the owner’s manual which will indicate mileage of anywhere from 50,000 to 90,000 miles. For a comprehensive list of timing belt service intervals and the type of engine (interference or not) check out About.com.

Some other considerations relative to timing belt replacement are:

1) Is the vehicle leaking any type of fluid that might degrade the belt, if so disregard the suggested replacement interval and replace the belt ASAP as well as repair the leak;

2) Do you know the repair history of the vehicle if it is not verifiable err on the side of safety and replace the belt;

3) Timing belt replacement can be labor intensive. Since the water pump is usually accessed in the same operation you might consider replacing the pump at the same time even if it doesn’t leak. You will save on labor and possibly prevent a pump replacement later on that will also necessitate the belt to be replaced again;

4) To avoid subsequent failure consider replacing sprockets and tensioners that are part of the timing belt system. All components are sometimes sold as a kit and can be less expensive than purchasing them individually.

All service intervals should be followed in order to protect your investment and maintain the integrity of your warranty. In the case of the timing belt, it just makes sense.

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Timing Belt Symptoms

Timing Belt Symptoms

A timing belt handles the timing of the engine’s valves. If a timing belt snaps, certain kinds of engines could be damaged. It’s better to replace the timing belt if you have hit the amount of miles your vehicle manual recommends for a replacement, or if you notice some symptoms signaling which the timing belt is going bad.

There’s two different kinds of engines: interference and non-interference. In case your timing belt snaps or slips on an interference engine, the engine is going to be badly damaged costing a small money in repairs. In case a timing belt snaps on a non-interference engine, the engine is going to be damaged but won’t cost too much in repairs as an interference engine.

The failure of a timing belt is probably the most typical main reasons why cars breakdown. If you’re acquainted with the timing belt, the way it functions and the way to recognise whether or not some thing is wrong with it, you’ll be able to avoid serious damage to your vehicle and you will know when you should replace it. Know-how about timing belt symptoms could save you from having to experience being stuck on the side of a road due to a broken timing belt.

With no correctly functioning timing belt, an engine’s pistons would stop to operate therefore a vehicle will be not able to work. Worn timing belt can’t perform its job appropriately for this reason old timing belts can result in performance issues with a vehicle.

Now there are several timing belt symptoms to take into consideration: if the car’s engine vibrates a lot which it leads to the whole car to shake, in case your car starts belching much more exhaust than normal, if you encounter difficulty in starting the car or in the event you hear strange noises from the car’s engine. These types of are just some of the common timing belt symptoms. In the event you encounter one or more of those it might be ideal to consult with a mechanic as quickly as possible. Other timing belt symptoms can vary then one of them is emitting of excess smoke. When your car emits smoke a lot more than the usual that is a sign which your timing belt could have a issue.

These are the basic timing belt symptoms that you need to watch out for if you wish to prevent causing major damage to your car’s engine. Some of the reasons for timing belt damage are oil leak and getting too hot. To prevent these issues it’s better which you carry out regular check-up for your vehicle. If you’d like to learn more about timing belt as well as other timing belt symptoms, you could browse the internet for websites which has this type of information.

If you have ignored the symptoms and your vehicle conks out and stops running it’ll probably are already too late. So keep in mind, at the time you notice these timing belt symptoms it might be better to get your car checked. Awaiting the damage to become severe is certainly not something you will want to do.

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Diagram for timing marks for crank shaft and oil pump for 2004 hyundai sonata

Optional Information:
Year: 2004
Make: Hyundai
Model: sonata
Engine: 2.4

hyundai timing belt

Be aware the oil pump pulley drives a balance shaft, and due to the gear reduction in the oil pump the timing mark is only correct once every 720 degrees. Meaning if the oil pump sprocket has spun with the belt off the vehicle and you realign it to the timing mark you have a one in two chance of it being correct. To verify you have the correct position, there is a 14mm bolt in the left hand side of the block (right on the balance shaft ‘tunnel’. When this bolt is removed, you will be able to stick a screwdriver or othr metal object 2.5 inches into the block when it is in the correct position; the shaft also will not turn more than 15 degrees in either direction. When you are out of phase, you will only be able to go in about one inch.