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Outer CV Joint, Checking

It is necessary to disassemble the joint whenever replacing the grease or if the ball surfaces show wear or damage.

Removing 

Fig 1: Identifying Joint Body Marking
GWWA40-0172Courtesy of AUDI OF AMERICA, LLC

-- Before disassembling mark ball hub position in relation to the ball cage and housing with an electric scriber or oil stone -arrow-.

-- Tilt ball hub and ball cage and remove balls one after another.

-- Turn cage until two cage windows -arrow- rest on joint body.

Fig 2: Ball Cage Windows Level With Joint Body
GWWA40-0155Courtesy of AUDI OF AMERICA, LLC

-- Lift out cage with hub.

-- Swing a hub segment in a cage window.

Fig 3: Identifying Segment Of Hub Swung Into One Of Cage Windows
GWWA40-0156Courtesy of AUDI OF AMERICA, LLC

-- Fold hub out from cage.

NOTE:

6 balls for each joint belong to a tolerance group. Check stub axle, hub, cage and balls for small depressions (pitting build-up) and chafing.

Excessive circumferential backlash in joint makes itself noticed via tip-in shock, in such cases joint should be replaced.

Flattening and running marks of balls are no reason to replace joint.

Installing 

Installation is the reverse of removal, with special attention to the following:

-- Press quantity of grease specified in table into joint body.

-- Insert cage with hub into joint body.

NOTE:

Cage must be installed laterally correct.

-- Press in opposing balls in sequence, during this, previous position of ball hub to ball cage and to joint body must be established again.

-- Install new circlip in shaft.

-- Distribute remaining grease in the joint boot.