A: Worn-out seals: grease escapes from roller bearings and contaminates belt. Bearings on which tensioners/idlers are built are not visible, but may be at the end of their lifetime. As belt manufacturer, we recommend change of all components at the same time to avoid any premature belt failure due to the malfunction of other related components. The better solution is the alternative of using the Gates Original PowerGrip® timing belt component kit.

Q: How can I tell whether the tensioner bearing or the idler bearing is in good condition?

A: The only way to find out whether the tensioner bearing or idler bearing is in good condition is by turning the bearing. If there is no restriction when it is being turned, this indicates the bearing is in good condition. If there is restriction while being turned, then it indicates that the bearing needs to be replaced.

Q: Why does a timing belt make noise?

A: Based on our experiences in the field, the belt is likely to have been over-tensioned during installation. The belt may not be tensioned to the tension level recommended by the OEM service manual. If noise continues after retensioning, drive back to the workshop for diagnosis.

Q: Why should I change my timing belt periodically, at least at OE recommended change intervals?

A: When we open up the timing belt cover, the timing belt may appear to be in good condition. However, the timing belt's job is to keep moving parts, primarily valves and pistons, in time with one another. If the timing belt is not replaced in a timely manner, it will eventually break, leaving you stranded at best or, worse, may cause engine damage which can be extremely costly to repair.

Q: How critical is alignment and tensioning with power transmission belting?

A: The primary causes of premature belt failure are incorrect tension and misalignment of the belt during installation.

Q: How often should I bring in my car for a timing belt change?

A: This would depend on your car's specifications (check your owner's manual) but, in most cases, every 60,000 miles or five years, whichever comes first.

Q: How often should drive belts be checked and replaced?

A: You should inspect drive belts at least once a month. Do not wait until drive belts are worn or make noise before replacement. Drive belts should be replaced at least every 2 years.

Q: What should I look for when checking belts?

A: You should inspect belts on a monthly basis. Replace any worn or frayed belts. Tighten them when more than 1/2" of slack is detected when depressed between the pulleys. Cars with spring loaded belt tensioners require no adjustment.

Q: Why do fan belts make noise sometimes or during engine idling ?

A: The belt is likely to be under-tensioned and caused by the pulleys misalignment. Belt selection is important, especially for belt with auto tensioner. Be sure you get the right belt for your car. You are welcome to write to us if you have any issue on this.