Front Strut: Inspection: Strut

Check for oil leaks.
Move the piston rod up and down to check that it operates smoothly without any hitch.
Check the piston rod runout.
Preparation tool:

Dial gauge
1. Fix the outer shell.
2. Extend the piston rod until it stops retracting, and set the dial gauge at the L position from the end of the piston rod.
  Measuring point:
  
  L = 10 mm (0.39 in)
3. While applying a force of W [20 N (2 kgf, 4 lbf)] to the arrowed section, read the dial gauge indication P1.
4. While applying a force of W2 20 N (2 kgf, 4 lbf) from the opposite side of W1, read the dial gauge indication P2.
Courtesy of SUBARU OF AMERICA, INC.

Play limit (PM ₁ + P ₂ ): 0.8 mm (0.031 in)
Replace the strut if faulty is found in the inspection or limit value is exceeded.