When to know timing belt, tensioner and idler failure?
Timing Belt, Tensioner and Idler Failure. See more from SKF. The first sign of wear is “noise”. A tensioner that sounds bad usually is bad. While the engine is running, listen to hear if any noise is coming from the timing cover or front assembly. Bad bearings make a high pitched “whine” or “growling” noise after the engine has been started.
How often should I change my timing belt?
Even if you are not travelling the recommended distance, the timing belt, tensioner and idlers still need to be changed by yearly intervals as the rubber and other components can break down and cause failure. Our mechanics will run the engine, listen for any abnormal noises, and inspect under the vehicle for any leaks.
What happens if you lose your timing belt?
In some cases, idlers and tensioners can seize, throwing the timing belt from its pulleys and causing extensive damage to the engine, with bent valves and even holed pistons resulting.
Where is the timing belt on an engine?
The timing belt is a major component of the modern combustion engine. It’s designed to keep the camshaft and crankshaft timing in check, which allows the engine to run at maximum performance. A timing belt is usually made of a composite of rubber and other materials which is located behind plastic protective covers at the front of the engine.
When to replace timing belt, tensioner and idler?
The idler & tensioner should spin freely and smoothly. Replace bearing (s) if roughness is determined. SKF recommends replacing timing belts, tensioner and idlers at 60,000 to 80,000 miles to prevent unnecessary damage to your engine. Don’t forget to check for oil leaks while investigating bearing noise.
What to do if your timing belt fails?
Do not reuse the timing belt, tensioner or idler if misalignment is found, replace them with new components to avoid engine damage or failure. With the timing belt removed, check for side to side play or “rocking” on both the idler pulley and tensioner pulley.
What to do if your idler and tensioner are not working?
With the timing belt removed, check for side to side play or “rocking” on both the idler pulley and tensioner pulley. Replace if any movement is detected. With the timing belt removed, check both the idler and tensioner pulleys for roughness when rotating the bearing. The idler & tensioner should spin freely and smoothly.
What kind of pulley does the timing belt use?
The timing belt runs on pulleys, known as idler pulleys, and is kept under the correct tension via the timing belt tensioner. The timing belt can also run the water pump, injection pump and the oil pump on some engines.