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Safer to change other bits, too

Question : THE manual of my 2002 Honda Accord stipulates that the timing belt must be renewed at 60,000km intervals.  

My vehicle has now covered 75,000km and my mechanic insists that all the belts must be replaced, together with the timing belt pulley.  

I wonder if this is really needed since I do not wish to pay for unnecessary replacements.

Answer : IT is not strictly necessary to replace the timing belt pulley or tensioner and bearing but it is prudent to do so at the time the timing belt is replaced.  

Although the bearing is capable of providing many years and miles of service, it can also fail without warning. At best, it operates nosily and, at worst, it may seize. The bearing runs noisily when the grease has leaked or dried out and the added friction means that the bearing runs at a higher temperature.  

High temperatures shorten belt life. Should the bearing seize, the belt could either snap or slip. Either way the consequences are dire, as it would lead to catastrophic engine damage when the valves make contact with the pistons. 

The cost of replacing the pulley and bearing is minimal when compared to the cost of a new engine.  

When renewing the timing belt, I would also consider replacing the belt pulley, oil seals and the water pump if this is driven by the belt. 

 
   
 

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Self service

Elantra suddenly stopped

 

Safer to change other bits, too

Doubting the manufacturer

Belt too tight

Timing chain

Belt or chain?

Timing Belt

Timing chain

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