The job of a balance shaft is to absorb and offset vibration found in most four-cylinder engines that is caused by movements of pistons. The shaft balances the off-center weight and reduces vibration.
Signs of a failing balance shaft
- Increased engine noise and vibration
Balance shaft repair guide
- There are three types of balance shafts including chain-, gear- and belt-driven
- The balance shaft should be replaced each and every time you install a new timing belt