Zaslal: pá 19. květen, 2017 8:37 Předmět: Overview of All the Rubber Timing Belt in Your Car
That’s a very basic overview of car Rubber Timing Belt, and by no means all-inclusive. Let’s talk in a bit more detail about different types of belts and how they work in your car.
Here is an overview of the most common types of drive belts:
Some vehicles have multiple belts, called v-belts, that come off the crankshaft of the engine to drive the alternator, the air conditioning compressor, the power steering pump and the water pump. In older vehicles, v-belts were the standard.
Advantages of the v-belt system are:
Belts are short and not likely to slip.
If one belt fails, the entire vehicle doesn’t end up off-line.
Disadvantages of the v-belt system are:
Auto supply stores may not stock a full range of belts, and they may need to be special-ordered.
Belts will usually wear at about the same rate, so you could end up having to replace several belts within a short time frame.
A serpentine belt is a single, long belt that drives all the engine components that would otherwise be powered by multiple v-belts. Serpentine belts are most common in newer cars, and are essentially the standard for the modern vehicle.
Advantages of serpentine belts are:
No chance of multiple belt failure.
Easy to replace.
Disadvantages of serpentine belts are:
Multiple accessories can be affected if the belt loosens.
When the belt fails, the entire engine is off-line.
The timing belt is also sometimes called a camshaft drive belt or a Gilmer belt. It is a notched belt, made of rubber, that enables the crankshaft to turn the camshaft, and opens and closes the engine valves synchronously with the pistons. In late model vehicles, the timing belt has essentially replaced the metal timing chain.
The advantage of the timing belt over the timing chain is that if the timing belt fails, there is less potential for damage to valves and pistons.
Symptoms, causes, and effects of failed or failing drive belts
V-belts: If a v-belt is failing, it will squeak, and accessories may not work properly. If it fails, the accessories that it powers will stop working. Causes can include ordinary wear or fluid contamination.
Serpentine belts: If a serpentine belt is failing, accessories may not work properly, car may be hard to start or not start at all, and the belt may emit a squeaking, screeching or chirping sound. Causes can include cracking, wear or stripping, fluid contamination and poor belt tension.
Timing belts: If a timing belt is failing, your car may idle rough, or you may hear a slapping sound from the motor compartment. If it fails, your car will not work at all. There is also a possibility of serious damage to the valves and pistons. Causes can include wear, slipping or fluid contamination.
Common enemies of drive belts
Road dirt, oil, water, and excessive heat are all enemies that can cause drive belt problems, so you should make sure that your car isn’t leaking oil, and that when you’re topping off your oil you do it carefully. Make sure that your engine undercover isn’t missing or damaged, since it is your first line of defense against contaminants that you can pick up on the road.
You should have your vehicle checked by a mechanic regularly in order to determine if your belts need to be adjusted or replaced. Timing belts are generally long-lived, but given the potential consequences if the timing belt fails, the importance of regular check-ups cannot be over-estimated. Serpentine belts usually need to be changed about every 50,000 miles. It makes no sense to keep driving with a worn or damaged belt, because eventually, it will break and you’ll end up stranded and possibly needing expensive repairs.
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