Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSAAB19949000 HATCHBACK L4-2290CC 2.3L DOHCREPAIR AND DIAGNOSISMAINTENANCEWHEELS AND TIRESWHEEL HUBTESTING AND INSPECTION
1994 Saab 9000 Hatchback L4-2290cc 2.3L DOHC
Wheel Hub: Testing and Inspection
1994 Saab 9000 Hatchback L4-2290cc 2.3L DOHCSECTION Testing and Inspection
Checking Wheel Hub Runout
1. Remove the wheel, brake caliper and brake disc.
2. Make sure the hub is clean and free from impurities.
- Use the extension arm on the brake disc measuring tool to adjust its position so that gauge readings Will be taken outside the bolt holes.
- Only one dial gauge need be used.
3. Rotate the hub and check the runout (the mean of the maximum and minimum readings).
- If runout exceeds 0.05 mm the hub should be changed.
Important: The dial gauge will fluctuate about 0.03-0.05 mm at every bolt hole. This is perfectly normal.
4. Fit the brake disc, brake caliper and wheel.
- Tighten the wheel bolts, using a torque wrench.
- Tighten to: 120 Nm (89 ft lb)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.