Running gear, axles, steering

Leaks at shock absorbers

~1min read
Shock absorbers are often replaced because of externally visible leakage. Inspections on the test rig and in the vehicle have shown that in the majority of cases this replacement is not justified. Slight loss of fluid (“sweating”) at the piston rod seal is not a reason for replacing a shock absorber. An oil sweating shock absorber is acceptable under the following conditions:
Fluid seepage (as shown in the shaded part of the illustration) is visible, but the fluid is dull and possibly dried by dust. The fluid seepage extends only from the top shock absorber seal (piston rod oil seal) down to the bottom spring plate -arrow-.
Leaks at shock absorbers

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