Legacy F6-3.0L (2005)
Timing Belt Tensioner: Technical Service Bulletins
Engine - Timing Belt Tensioner Bracket Modification
NUMBER: 02-93-04
DATE: 11/05/04
APPLICABILITY:
Legacy, Impreza and Forester Vehicles
SUBJECT:
Modification of Timing Belt Tensioner Bracket
INTRODUCTION
This Service Bulletin is to inform of a modification made to the timing belt tensioner bracket to prevent a knocking noise. On SOHC engines, the shape
of the bracket and the size of the 2 (upper side) installation belts were changed. On DOHC engines, the shape of the bracket was changed and ribs added
to increase rigidity.
PRODUCTION LINE CHANGE
The new style tensioner brackets were used in production starting in February 2004.
Affected vehicles:
^
2004MY Forester
^
2005 MY Legacy and Impreza
The following are the approximate starting VINs:
PART NUMBER INFORMATION
COUNTERMEASURE INFORMATION
Also, a countermeasure was made to the timing belt tensioner, which has been incorporated in production since April 5, 2002.
^
A new heat treatment procedure was used to improve the hardness of the surface at the plunger to prevent poor sealing.
Identification of countermeasure belt tensioner
