Is it necessary to replace the tensioner with the timing belt?

If a new belt is over-tightened, it could fail prematurely, or even break. When that happens, the broken timing belt can also cause neighboring components to fail. Additionally, the timing belt’s teeth can develop stress cracks, or even detach. If the belt looks worn or damaged, it needs to be replaced.

When to replace the tensioner and water pump?

When you’re talking about the thing that keeps your engine working properly, that gets important. The tensioner and water pump get replaced with the belt not because they absolutely need to be replaced at that time, but because odds are they will need to be replaced before the next timing belt replacement.

Can a bell tree be replaced without a tensioner?

Without the tensioner arm you wouldn’t be able to pull the bell tree to replace it with a new one. Usually we hear of the timing belt itself going bad and needing to be replaced, it’s possible that the timing belt tensioner is the problem when your engine and it can be replaced separately from the timing belt if it’s not doing his job properly.

How to know if your belt tensioner is bad?

Symptoms of a Bad or Failing Belt Tensioner 1 Squeaking or Grinding Noise. 2 Unusual Belt Wear. 3 Failure of the Belt-driven Accessories to Operate. 4 Bleeding Rust and Presence of Cracks. 5 Excessive Wear of Pulley Bearing. 6 Visible Signs of Pulley Wear. 7 Excessive Sideward Movement of the Tensioner Arm. 8 Loss of Tensioner Spring Force.

How do you tension a power transmission belt?

First determine the proper deflection force required to tension the timing belt. Deflection forces are given in the timing belt manufacturer’s tables and/or power transmission drive design online calculators. Then place a straightedge across the top of the timing belt.

How do you install a new timing belt?

Shorten the center distance or release the tensioning idler to install the timing belt. Do not pry the timing belt onto the timing belt pulleys. Place the timing belt on each timing belt pulley and ensure proper engagement between the timing belt pulley and timing belt teeth.

Can a taut timing belt stand a strong pull?

While a taut string or timing belt can stand a strong pull. Take up any loose slack in the timing belt by adjusting the center to center distance between the two timing belt pulleys. Before any final tensioning is to be applied make sure that the timing belt teeth are fully seated in the tooth grooves on both timing belt pulleys.

Can a bad belt tensioner cause a car to break?

In more severe instances, a bad tensioner pulley can cause the drive belt to break. Since the belt tensioner keeps the proper spinning of the drive belts in the car’s engine, certain components or accessories may fail to operate if there’s a problem with the tensioner.

What causes a belt tensioner pulley to squeak?

Tensioner pulley wear will cause your pulley to squeak. A worn out pulley bearing or a worn spring in the tension pulley can also cause squeaking or a chirp. I show you how to use water to identify what type of squeak problem you have and then how to find the problem.

Why does my timing belt keep stretching out?

The timing belt is a rubber belt that runs over and through a series of pulleys and gears. Over time, due to age and heat, the belt will stretch out. As the belt stretches it can become loose, so the tensioner needs to adjust the belt as needed to keep it tight.

When to replace timing belt and tensioner bearings?

When the timing belt is replaced, other parts, including the tensioner, should be replaced at the same time. This is because these components wear out at essentially the same rate as the belt. For instance, the tensioner bearings could dry out or even seize.

Do you need to remove serpentine belt to change timing belt?

Remove the alternator belt. Depending on your model, you may need to remove the serpentine belt to get to the timing belt. Loosen the nuts, pushing the alternator if necessary to create slack on the belt and remove it.

What happens if your timing belt is broken?

The timing on the engine must be set exactly, or the valves and the pistons may collide, resulting in very expensive engine repairs. If your timing belt is broken, then make sure valve damage was not done before proceeding with the belt replacement.

Why do you need a threadlocker on a belt tensioner?

A drop of threadlocker will not only secure the bolt (and you’re right – they’re not torqued high) it will help seal the threads and seat from water and sediment infiltrating. Like I said, I threadlock almost everything, usually very lightly, but just about everything with a thread.

What does a loose belt tensioner sound like?

If the drive belt noise resembles a squeal or a squeak, it is possible that the belt tensioner is loose. This is especially the case when starting the engine first thing in the morning. Since the tensioner is not able to maintain the correct tension on the belts, it produces a squealing or squeaking sound.

Is it necessary to replace the tensioner with the timing belt?