Shock Compression and Rebound Test: How to Judge a Shock
Bounce Test
- Press down a corner firmly, release quickly
- Good: One rebound, settles
- Bad: More than 2 rebounds - weak damping
Bench Check
- Look for leaks, dents
- Pull the rod - force should be firm and even
- Pull out fast, release - should extend slowly
Professional
- Dyno test: Damping force curves
- Comparison: New vs old at same speed
Criteria
- Weak damping - replace
- Severe leak - replace
- Noise, binding - replace
- Replace in axle pairs
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