Inner CV Joint, Checking

Inner CV Joint, Checking

The joint must be disassembled to replace dirty grease or for checking the balls and ball tracks for wear and damage.

Disassembling

• Ball hub and joint are paired and should be identified before removal. Do not interchange cage allocation.

- Swing ball hub and ball cage.






- Press joint piece out in - direction of arrow -.

- Press balls out of cage.

- Flip out ball hub from ball cage via running path of ball - arrows -.






- Check joint piece, ball hub, ball cage and balls for small broken off depressions (pitting build-up) and chafing.

• Excessive backlash in joint will be noticed as a knock during load changes. Joint must be replaced in such cases. Flattening and running marks of balls are no reason to replace joint.

Assembling






- Insert ball hub into ball cage via two chamfers. The installation position is at random. Press balls into cage.

- Insert hub with cage and balls upright into joint piece.

• When inserting, make sure that in each case the wide gap - a - at joint piece contacts narrow gap - b - at hub after swinging in.






• Chamfer on inner diameter of wheel hub (splines) must face toward drive axle.

- Swing in ball hub, to do so swing out hub far enough from cage - arrows - so that the balls have the distance of the running paths.






- Swing in hub with balls by pressing forcefully onto cage - arrow -.






CV Joint, Checking for Function

CV joint is properly assembled, if ball hub can be slid back and forth by hand over whole compensation length.

- Press grease into joint body.

Grease quantities and types for drive axle with inner CV joint 108 mm diameter. Refer to => [ Grease Quantity and Type ] Rear Suspension.