Forester F4-2.5L SOHC (2004)
1) Check for oil leakage.
2) Move the piston rod up and down to check that it operates smoothly without any binding.
3) Play of piston rod
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Measure the play as follows:
Fix outer shell and fully extend the rod. Set a dial gauge at the end of rod: L [10 mm (0.39 inch)], then apply a force of W [20 N (2 kgs, 4
lbs.)] to threaded portion. With the force of 20 N (2 kgs, 4 lbs.) applied, read dial gauge indication: P1, Apply a force of 20 N (2 kgs, 4
lbs.) in the opposite direction of "W", then read dial gauge indication: P2.
Play of piston rod = P. + P2
Limit of play: 0.7 mm (0.028 inch)
If the play is greater than limit, replace the strut.
STRUT MOUNT
Check the rubber part for creep, cracks and deterioration, and replace it with a new one if defective.
DUST COVER
If any cracks or damage are found, replace it with a new one.
COIL SPRING
One having permanent strain should be replaced with a new one. When the vehicle posture is uneven, although there are no considerable reasons
like tire puncture, uneven loading, etc., check the coil spring for its free length referring to specifications, cracks, etc., and replace it with a new
one if defective.
HELPER
Replace it with a new one if cracked or damaged.
DISPOSAL
CAUTION:
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Before handling gas filled struts, be sure to wear goggles to protect eyes from gas, oil and/ or filings.
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Do not disassemble the strut damper or place into a fire.
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Drill holes before disposing of gas filled struts.
1) Place the gas filled strut on a flat and level surface with piston rod fully extended.
2) Using a 2 to 3 mm (0.08 to 0.12 inch) diameter drill, make holes in areas shown in the figure.