SEAT Workshop Service and Repair Manuals

Checking inner constant velocity joint 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. Dismantling   Note Ball hub and joint body are paired and must be marked before dismantling. Ensure the balls run in the same races after assembly.

–  Swivel ball hub and ball cage and pull out of joint body in direction of arrow. –  Press balls out of cage.

–  Tip ball hub out of ball cage via ball track -arrows-. Checking –  Check joint body, ball hub, ball cage and balls for pitting and traces of seizing.   Note Excessive backlash in the joint will cause knocking or jolts under load change. In this case the joint must be replaced. Smooth areas and ball running marks do not constitute grounds for joint replacement. Assembling

–  Insert hub into cage via the two chamfers. The hub can be installed in any position. Press balls into cage. –  Insert hub with cage and balls at a right angle to joint body.   Note

When fitting, ensure that the larger distance -a- on the constant velocity joint housing coincides at all points with the smaller distance -b- on the hub after turning it.

–  Swivel the hub into the joint body; at the same time the hub must be swivelled out of the cage -arrows- far enough to allow the balls to fit into the ball races.

–  Swivel in the hub with balls by applying firm pressure on the cage -arrow-. Verification of the 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.