Started having noises from the engine. Had it looked at and couldn't find the issue. About 2 months later replaced the idler pulley after seeing it was failing. Thinking that was the problem couldn't help but notice engine still having a knocking noise. After it got warmer out the noise repeated only to spot that Harmonic Balancer shaking and wobbling to the engine knocking. Thus destroying my new idler pulley.
Note: that if Harmonic Balancer Pulley fails will cause major engine damage or complete failure.
A D V E R T I S E M E N T S
Started having noises from the engine. Had it looked at and couldn't find the issue. About 2 months later replaced the idler pulley after seeing it was failing. Thinking that was the problem couldn't help but notice engine still having a knocking noise. After it got warmer out the noise repeated only to spot that Harmonic Balancer shaking and wobbling to the engine knocking. Thus destroying my new idler pulley.
Note: that if Harmonic Balancer Pulley fails will cause major engine damage or complete failure.
- mazda612, Norristown, US