Damper Strut

1. Check for oil leaks.
2. Move the piston rod up and down to check that it operates smoothly without any hitch.
3. Piston rod play

• Measure the play as follows:

  Fix the outer shell and fully extend the rod. Set a dial gauge at the end of rod L [10 mm (0.39 in)], and then read the dial gauge indication P₁ while applying a force of W [20 N (2 kgf, 4 lb)] to threaded portion. Apply a force of 20 N (2 kgf, 4 lb) in the opposite direction of "W", and then read the dial gauge indication P₂ .

Fig 1: Identifying Play Measurement

Courtesy of SUBARU OF AMERICA, INC.

Play limit (P ₁  + P ₂  ): 

0.8 mm (0.031 in) 

If the play exceeds limit, replace the strut.