What causes timing belt walk?
In most cases, belt tracking can be traced back to misalignment. Worn engine parts, like a ball bearing that has seen better days and that misaligns the water pump or the tensioner for instance, or a worn mounting part, can cause an alignment problem over time.
Why does my timing belt keep slipping?
The belt can break due to a number of reasons, but the most common is age. One other common problem is the belt tensioner. If the tensioner is bad, it can cause the belt to come loose or cause the pulley to seize, making the belt come off.
What causes timing chain tensioner to go bad?
What causes a timing chain to break or wear? Over time, the timing chain stretches due to internal component wear. The chain tensioner or the guides that are connected to the timing chain may wear out as well, causing the timing chain to fail completely.
When to replace timing belt on Mazda 3?
{21} – On 1989-98 MPV 3.0L models, at 60,000 miles inspect the tensioner pulley & replace as necessary. A worn inner bushing may allow the pulley to slant resulting in a torn or jumped belt. {32} – On 1993-96 models, replace every 60,000 miles. On 1997-2006 inspect at 60,000 miles, then again at 90,000 miles.
How often should I replace my timing belt?
A worn inner bushing may allow the pulley to slant resulting in a torn or jumped belt. {32} – On 1993-96 models, replace every 60,000 miles. On 1997-2006 inspect at 60,000 miles, then again at 90,000 miles. It is recommended but not required, but it should be replaced at 105,000 miles. Questions? We can help.
When did Mazda make the move to timing chains?
Mazda made the move to timing chains in the mid-2000s, and since we won’t get into the nuts and bolts of chain replacement, you would be better served referring to your service information. I’m always saying to check your service info before you dig into an unfamiliar job. It is never more important than it is in this case.
What should Mazda TSB 01-012 / 12 do?
Mazda TSB #01-012/12 covers the diagnostics and procedures well; the problem is the lock pin on the actuator is damaged, allowing uncontrolled movement of the components. The TSB covers how to replace the actuator pulley without replacing the timing chain and refers you to the service manual if the chain needs to be replaced.