Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993)
2) Using ST, remove self-locking nut. ST 927760000 STRUT MOUNT SOCKET
3) Remove strut mount, upper spring seat and rubber seat from strut.
4) Gradually decreasing compression force, and remove coil spring.
5) Remove dust cover and helper spring.
Inspection
INSPECTION
Check the disassembled parts for cracks, damage and wear, and replace with new parts if defective.
Damper Strut
1) Check for oil leakage.
2) Move the piston rod up and down to check its operates smoothly without any binding.
3) Play of piston rod
Measure the play as follows:
Fix outer shell and fully extend the rod. Set a dial gauge at the end of the rod: L [10 mm (0.39 in)], then apply a force of: W [±20 N (±2
kg, 14 Ib.)] to threaded portion. With the force of ±20 N (±2kg, ±4 Ib.) applied, read both dial gauge readings, P1 and P2 The free
play is determined by the following equation:
Limit Of play:
Less than 0.8 mm (0.031 in)
If the play is greater, replace the strut.
Strut Mount
Check rubber part for creep, cracks and deterioration, and replace it with 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 vehicle posture is uneven, although there are no considerable reasons like
tire puncture, uneven loading, etc., check coil spring for its free length, cracks, etc., referring to specifications, and replace it with a new one if
defective.
Helper
Replace it with new one if cracked or damaged.
Assembly
D: ASSEMBLY
1) Before installing coil spring, strut mount, etc., on the strut, check for the presence of air in the dampening force generating mechanism of the
strut since air prevents proper dampening force from being produced.
2) Checking for the presence of air
(1) Place the strut vertically with the piston rod facing up.