Mearuring Lateral Run-Out In Hub

Measuring lateral run-out in hub
Special tool
Preparations





^ Get measurement tool set 999 5418.
^ Remove brake caliper and brake pads as per Brake disc fronts replacement or Brake disc rear, replacement. Then continue as below.

Note: Mark brake disc up against hub so disc can return to its old position when installing.

^ Clean hub flange carefully. Remove rust with steel blade and steel brush.

Installing measurement equipment





^ Install measurement equipment as per illustration. Illustration shows testing front.
^ Front: Use M8 bolts, washers and nuts in bolt set 999 5507 when installing measurement tool bracket to front brake caliper mounting hole.

Note: Make sure that bracket is not lying against driveshaft gaiter, (front only).

^ Rear: Use the bolts included in the measurement tool set when installing measurement tool bracket to the rear brake caliper mounting hole. Measuring lateral run-out
^ Put the test gauge point against the hub flange as in the illustration.
^ Rotate hub gently. Use a wheel wrench as an aid on the front hub.

Note: Illustration shows testing front.





^ Note test gauge run-out. Hub lateral run-out must not exceed 0.020 mm (0.00079").
^ Replace hub if maximum lateral run-out exceeds 0.020 mm (0.00079").
Front: Replace hub.
Rear: Replace hub.

Finishing
^ Install brake disc on hub, lining up marks. Tighten locating pin and bolt to 8 Nm (6 ft. lbs.).
^ Go to Brake disc front, replacement or Brake disc rear, replacement.