8/15/2023 0 Comments Timing belt failure symptoms![]() Confident of the outcome and keen to protect the relationship with the customer, workshops have been known to repair the engine to get the vehicle back into service much sooner. Unfortunately, damaged teeth are usually a symptom rather than a cause.įaced with an absence of evidence other than sheared teeth, a claim is often filed with the factor. When damaged timing belt teeth are discovered, sometimes the conclusion is that the belt and/or the associated drive system components are the root cause of the problem. It was this that had caused the teeth to shear from the belt. The belt had stopped rotating while the crankshaft had not. In this case, the high-pressure pump had seized. The workshop was not to blame for the drive system failure. Furthermore, at the time of the belt replacement, the workshop could have had no reason to suspect that the high-pressure pump would have been likely to fail, subsequently. After consulting the vehicle manufacturer, the factor confirmed that the timing belt replacement and the cause of the high-pressure pump failure were unrelated. Therefore, this was the cause of the subsequent timing belt failure. Instead, it extended the diagnostic approach to the common rail system, which has a high-pressure pump. It took the view that as no obvious fault could be found in the drive system, an undetected fault must exist elsewhere. However, this workshop decided not to instigate an immediate claim for faulty parts. Often leading to claims being submitted based on misdiagnoses that are unlikely to succeed. When a timing belt fails prematurely, time can be lost confirming symptoms that are evident, rather than identifying the real causes of problems. Any claim would involve a single inspection from a Gates inspector and this saves a great deal of time. The belt, tensioner and water pump were all fitted as part of a Gates kit. It had to have been caused when the drive system was overhauled.” Workshop response “When an immobilised van arrived on the back of a rescue truck less than two weeks after a timing belt kit had been installed, the implications seemed clear. No evidence of foreign objects was found and there was no wear or misalignment of the guide pulleys. Moreover, there were no traces of a water leak. The spindle was observed to be moving freely. The belt was removed and the water pump examined. ![]() Some teeth had sheared from a section that would have been in contact with the crankshaft. The drive system cover was removed and the timing belt was examined. During the drive system overhaul, a Gates PowerGrip Kit Plus Water Pump had been installed. The engine oil level was checked and observed to be adequate. Installation error (incorrect procedure/parts/tools).Engine seizure caused by oil starvation.The common causes of premature timing belt failure include:
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |