■ CAUTION ■ Refer to ″Removal procedure of aluminum strut housing adhesive joint″ and ″Installation procedure of aluminum strut housing adhesive joint″ when replacing and reusing the hoodledge extension and hoodledge reinforcement.

Unit: mm (in) |  |  |  |
: Vehicle front : Weld the parts onto the back of the component part.
Replacement parts
• | Front strut housing assembly with front side member (LH) | • | Hoodledge extension (LH) | • | Hoodledge reinforcement (LH)
• | Upper front hoodledge (LH) |  |  |  |

: Vehicle front : Drill φ9 mm (0.35 in) hole for the plug welding hole (ultra high strength steel plate).

Unit: mm (in) |  |  |  |
: Vehicle front

1. | Adhesive (3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White Duo-Pak or equivalent)
Unit: mm (in) |  |  |  |
: Vehicle front : Weld the parts onto the back of the component part.

View R: Before installing hoodledge reinforcement
View S: Cool the aluminum strut housing using compressed air to avoid the heat applied at the welding procedure.
REMOVAL PROCEDURE OF ALUMINUM STRUT HOUSING ADHESIVE JOINT
■ CAUTION ■

- Always perform the following procedure to visually check the strut housing for deformation and perform the crack inspection (dye penetrant test) when the vehicle is damaged.

Crack inspection procedure (Follow the manufacturer’s directions for proper usage.)

1. Spray the cleaning solution on the inspection surface to clean the surface.
2. Spray the penetrant liquid on the inspection surface and wait until the liquid has penetrates thoroughly.
3. Wipe out any excess penetrant liquid on the inspection surface and then wipe out again with a cloth moistened by a little cleaning solution.
4. Spray the developer on the inspection surface.
5. A red indication appears on damaged area.

- Always use the specified bolt with its surface finished.
  Never use bolts other than those that are specified, otherwise electric corrosion occurs.
- Never reuse the removed specified bolts.
- Never use an impact wrench to remove or install the mounting bolt.
- Never remove the joint bolts (15) between side member and strut housing that are shown in the figure.

  : Vehicle front : Never remove

A. | Hoodledge extension | B. | Hoodledge reinforcement | C. | Hoodledge extension, hoodledge reinforcement, and upper front hoodledge
D. | Front cowl top assembly |  |  |  |
: Vehicle front : Adhesive exfoliated position
Refer to ″How to use this manual″Components for the symbols shown in the figure.

1. Remove the mounting bolts and spot welding of the hoodledge extension.
2. Set the temperature gauge (the infrared non-contact temperature gauge is recommended for temperature management) to the strut housing, and then heat up to 110°C (230°F) using a halogen heater.
   ■ CAUTION ■
   The heating temperature should not exceed 110°C (230°F).
3. Use a chisel while heating the hoodledge extension, insert it between the hoodledge extension and the strut housing. Then slightly separate the hoodledge extension while ungluing the adhesive from the front.
   ■ CAUTION ■
   Never damage the strut housing and the portions where the strut housing is bonded.
4. Eliminate the adhesive that remains on the strut housing and the portions where the strut housing is bonded with a disc sander.
5. If the coating on the joint surface with the strut housing and the vehicle is peeled off, apply epoxy primer on the surface to prevent electric corrosion.
6. Remove the hoodledge reinforcement, upper front hoodledge, and front cowl top assembly while observing the procedure and precautions above.

INSTALLATION PROCEDURE OF ALUMINUM STRUT HOUSING ADHESIVE JOINT
■ CAUTION ■

- Always use the specified bolt with its surface finished.
  Never use bolts other than those that are specified, otherwise electric corrosion may occur.
- Never reuse the removed specified bolts.
- Never use an impact wrench to remove or install the mounting bolt.
- Apply the adhesive, after degreasing its application area.
- Check the instruction manual of the adhesive for the hardening time.

A. | Bonded area between front cowl top assembly and upper front hoodledge | B. | Bonded area between hoodledge extension and hoodledge reinforcement |  |
: Vehicle front : 3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White Duo-Pak or equivalent
Refer to ″How to use this manual″Components for the symbols shown in the figure.

1. Apply the adhesive to the bonded area (strut housing side) between front cowl top assembly (A) of strut housing and upper front hoodledge (A) before temporarily installing the service parts to the vehicle.
   ■ CAUTION ■
   Apply the adhesive so that it protrudes from the bonded area (the flange end should be covered with the adhesive) when temporarily installing and tightening the service parts.
   Add the adhesive to the area where the flange area is not covered with the adhesive. Then, smooth it with a spatula so that the flange end is covered with the adhesive.

   A. | Joint with hoodledge extension, hoodledge reinforcement, and upper front hoodledge | B. | Joint with front cowl top assembly | C. | Joint with hoodledge extension
   : Vehicle front
   Refer to ″How to use this manual″Components for the symbols shown in the figure.

2. Temporarily install the parts before hardening the adhesive, tighten the mounting bolts of upper front hoodledge (1) and front cowl top assembly (2) evenly in 2 or 3 steps in the order shown in the figure, and then tighten bolts to the specified torque.
3. Install hoodledge reinforcement (3) and hoodledge extension (4) in this order. Observe the procedure and precautions above.