Vanden Plas L6-4.0L (1990)
Ball Joint: Service and Repair
Ball Joint-Upper
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Slacken off the RH road wheel nuts 1/4 turn each.
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Jack up the front of the vehicle and support with axle stands.
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Remove one wheel nut, mark the wheel relative to the stud, and remove the remaining wheel nuts.
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Remove the road wheel and tire assembly.
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Remove the upper ball joint (2) securing bolts (1), note the position and collect the castor shims (3).
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Displace the upper wishbones for access.
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Remove the upper ball joint securing nut (2), fit Service Tool JD100 and break the taper.
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Remove the ball joint (2) and tool.
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Clean the mating faces and shims.
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Fit the new ball joint assembly.
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Fit and tighten the ball joint securing nut.
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Fit the ball joint securing bolts.
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Do not tighten at this stage.
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Refit the castor shims.
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Finally tighten the ball joint securing bolts.
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Refit the road wheel.
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Lower the vehicle to the ground.
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Carry out steering geometry check using suitable equipment.
DATA
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Camber angle 0 to 0.50°
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Castor angle 3.5 to 4.5°
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Wheel alignment Parallel to 1.6mm toe in (inclusive)
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Measurements to be taken with the underside of the front crossbeam 150.8mm above the ground.
SERVICE TOOLS
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JD 100 Ball joint remover