Mitsubishi Eclipse 1990-1998 Repair Guide

Strut Assembly

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REMOVAL & INSTALLATION



1990-94 Vehicles

See Figures 1, 2 and 3



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Fig. Fig. 1: Exploded view of the rear shock and strut assembly-1990-94 FWD vehicles



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Fig. Fig. 2: Rear strut and shock assembly and related components-1990-94 AWD vehicles

  1. Disconnect the negative battery cable. Remove the trunk interior trim to gain access to the top mounting nuts.
  2.  

  1. Remove the top cap and upper shock mounting nuts.
  2.  
  3. Remove the brake tube bracket bolt.
  4.  
  5. Raise and safely support torsion axle and arm assembly slightly. Make sure the jack does not contact the lateral rod.
  6.  

Always use a wooden block between the jack receptacle and the axle beam. Place the jack at the center of the axle beam.



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Fig. Fig. 3: Support axle beam with wooden block between jack and center of axle beam

  1. Remove the shock lower mounting bolt and remove the assembly from the vehicle.
  2.  

  1. Installation is the reverse of the removal procedure. Tighten the upper shock mounting nuts to 29 ft. lbs. (40 Nm) and the lower mounting bolt to 72 ft. lbs. (100 Nm).
  2.  

1995-98 Vehicles

See Figures 4, 5, 6, 7, 8, 9, 10 and 11

  1. For all vehicles, except the Eclipse Spyder, remove the service lid in the luggage compartment.
  2.  



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Fig. Fig. 4: Open the luggage compartment, then unfasten the service lid retaining screws ...



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Fig. Fig. 5: ... then remove the cover for access to the upper mounting nuts

  1. For the Eclipse Spyder, remove the luggage compartment side trim.
  2.  
  3. Remove the cap and flange nuts securing the upper mounting bracket to the body of the vehicle. Do not remove the larger nut in the center of the shock absorber.
  4.  



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Fig. Fig. 6: Remove the cap, exposing the upper mounting nuts



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Fig. Fig. 7: Unfasten the three outer retaining nuts. Do NOT remove larger center nut

  1. Raise and safely support the vehicle.
  2.  
  3. Remove the bolt attaching the lower end of the shock to the knuckle and remove the shock absorber from the vehicle.
  4.  



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Fig. Fig. 8: Once the vehicle is raised, loosen the lower shock-to-knuckle attaching bolt



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Fig. Fig. 9: Remove the lower mounting bolt and washer ...



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Fig. Fig. 10: ... then carefully remove the shock and spring assembly from the vehicle



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Fig. Fig. 11: Exploded view of the shock and strut mounting-1995-98 vehicles

To install:
  1. Install the upper bracket of the shock to the vehicle. Tighten the mounting nuts to 32 ft. lbs. (44 Nm).
  2.  
  3. Raise the suspension up with a jack or adjustable stand to align the shock absorber lower mounting holes.
  4.  
  5. Install the lower mounting bolt. Tighten the bolt to 71 ft. lbs.
  6.  
  7. Remove the jack or stand and safely lower the vehicle to the floor.
  8.  
  9. Install the cap and service lid.
  10.  

OVERHAUL



1990-94 Vehicles

See Figures 12 and 13

  1. Compress the spring on the shock absorber.
  2.  

Do not use an air tool to tighten the bolt on the spring compressor tool.

  1. Once the spring is compressed, remove the piston rod tightening nut.
  2.  



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Fig. Fig. 12: Compress coil springs before removing piston rod tightening nut

  1. Remove the upper bushings, washer, bracket, collar and spring pad from the shock taking note of their exact position and orientation.
  2.  
  3. Remove the compressed spring from the shock absorber.
  4.  



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Fig. Fig. 13: Exploded view of the rear strut disassembly-1990-94 FWD vehicles shown, AWD similar

To assemble:
  1. Install the compressed spring onto the shock absorber, making sure the edge of the coil spring is aligned against the edge of the shock absorber spring seat.
  2.  
  3. Install the dust cover, cup assembly, spring pad, bracket assembly and washer to the shock piston in their original locations.
  4.  
  5. Align the top bracket assembly with the end of the spring and install a new piston rod tightening nut. While holding the piston rod, tighten the nut to 18 ft. lbs. (25 Nm).
  6.  
  7. Align the spring so the lower edge fits into the indent in the spring seat and the upper edge fits into the spring pad groove, then slowly release the spring compressor tool.
  8.  
  9. Fill the shock cap with grease and install onto the shock absorber assembly.
  10.  

1995-98 Vehicles

See Figure 14

  1. Use a suitable coil spring compressor and compress the coil spring. An air tool should not be used to tighten the spring compressor.
  2.  
  3. While holding the piston rod, remove the self-locking nut.
  4.  
  5. Remove the upper bracket assembly and spring pad.
  6.  
  7. Remove the collar, upper bushing, cup assembly, bump rubber and dust cover.
  8.  
  9. Remove the coil spring from the strut.
  10.  



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Fig. Fig. 14: Exploded view of the shock and strut assembly-1995-98 vehicles

To install:
  1. Align the end of the coil spring with the stepped part of the spring seat and install the compressed coil spring on the strut.
  2.  
  3. Install the dust cover, bump rubber, cup assembly, upper bushing, collar, upper spring pad and bracket assembly on the strut.
  4.  
  5. Install the upper bushing and washer on the piston rod.
  6.  
  7. Install a new self-locking nut on the piston rod. Temporarily tighten the nut.
  8.  
  9. Carefully remove the spring compressor from the spring. Tighten the self-locking nut to 16 ft. lbs. (25 Nm).
  10.  

 
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