Patent ID: 7980976

Claim:
A tensioner for a flexible drive means on an engine, comprising: a pivot shaft having a central bore for receiving a bolt to install the tensioner to the engine; a tensioner arm rotatably mounted on the pivot shaft, said tensioner arm having a cylindrical bearing mounting surface with its axis of rotation located eccentrically with respect to an axis of the pivot shaft, and said tensioner arm having a first stop member; a rotatable member rotatably mounted to the cylindrical bearing mounting surface, the rotatable member having an outer surface complementary to the surface of flexible drive means to be contacted by the rotatable member; a spring operable to bias the tensioner arm about the pivot shaft to move the rotatable member towards the flexible drive means to tension the flexible drive means; and adjustable stop means engaged with a portion of the tensioner and wherein the adjustable stop means receives the first stop member of the tensioner arm and defining an angular range of movement of the tensioner arm during operation, the stop means being moveable by an installer of the tensioner while the portion of the tensioner is fixed in position on the engine, to alter the angular range of movement of the tensioner arm from a position suitable for installation of the flexible drive means about the rotatable member to a position for operation of the installed tensioner.