Volkswagen Workshop Service and Repair Manuals

Checking inner constant velocity joint Removing The joint is to be dismantled to renew the grease if it is heavily soiled, and to check the running surfaces and the balls for wear and damage.

–  Swing ball hub and ball cage. –  Press out joint body in direction of arrow. –  Press balls out of cage.   Note The ball hub and joint body are paired. Do not interchange them.

–  Tip ball hub out of ball cage via ball track -arrows-. –  Check joint body, ball hub, ball cage and balls for pitting and traces of seizing. Excessive circumferential backlash in the joint is noticeable during load change jolts. In this case the joint must be replaced. Smoothing and traces of wear of the balls are no reason to renew the joint. Installing

–  Insert hub into cage via the two chamfers. The hub can be installed in any position. Press balls into cage. The ball hub has two different distances between the ball tracks: a smaller one and a larger one.

–  Insert hub complete with cage and balls into joint body, making sure that a smaller gap -b- faces open side of joint body. –  Also make sure that chamfer on inner circumference of ball hub is visible after swinging it into place.

–  Swing ball hub into place by swinging hub out of cage as shown in figure -arrows-.

–  Swivel in hub with balls by applying firm pressure to cage -arrow-. Checking function of constant velocity joint The constant velocity joint is correctly assembled if the ball hub can be moved by hand backwards and forwards over its entire range of axial movement.