Shop Line: Timing belts loosening on some Acura 3.2L engines - Engine Builder Magazine

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Shop Line: Timing belts loosening on some Acura 3.2L engines

Larry Carley
By Larry Carley

We’ve had complaints about timing belts loosening on some Acura 3.2L engines. Do you know of any solutions?

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The AERA Technical Committee offers the following information regarding a revised timing belt tensioner for 2002-2003 Acura 3.2L engines. This tensioner is part of a product improvement by Acura. Vehicles with the revised tensioner should be identified by a punched mark above the sixth digit of

the engine compartment VIN code as shown above.

The original design timing belt tensioner is filled with oil to dampen oscillation. Due to a manufacturing situation, the tensioner oil can leak. If enough oil is lost, the timing belt loosens and causes engine noise. The worst-case scenario is the belt may lose tension and allow the loss of cam timing. Refer to the chart (Figure 1) to determine which vehicles are affected.

For information on receiving all of AERA’s regular monthly technical bulletins and other association services and benefits, call toll free 888-326-2372 or send an e-mail to [email protected]

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