Checking wheel rim for lateral and radial runout (M4 Coupe)
Necessary preliminary tasks:
- Remove WHEEL
- Check wheel for LATERAL AND RADIAL RUNOUT
- Remove TIRE from disc wheel
- Remove dirt from rim base and rim flange
IMPORTANT:
Disc wheels are not allowed to be repaired!
Mount disc wheel in balancing machine.
Use suitable wheel centering element supplied with corresponding balancing machine.
- Basic flange
- Wheel centering element
- Type flange
- Clamping nut
Place dial gauge sensor on rim shoulder.
Turn wheel by hand and measure MAX. RADIAL RUNOUT .
Carry out measurement on both rim shoulder sides.
NOTE:
Dial gauge must be vertical to rim shoulder.
Position sensor on rim flange.
Turn wheel by hand and measure MAX. LATERAL RUNOUT .
Carry out measurement on both rim flanges.
NOTE:
Dial gauge must be vertical to rim flange.
IMPORTANT:
Avoid clamping errors during subsequent installation work.