Front Side Frame Replacement
2. Mass Production Body Welding Positions and Numbers - Remove

Front Side Frame and Front Side Backplate


3. Construction - Check

NOTE:
This section explains the procedures after removal of all related parts. For the related parts' removal procedure, refer to the appropriate Service Manual.
The component replacement procedure described here is only for new Honda-supplied parts, as needed, according to the area and the degree of damage on the body.
Replace the front side frame and the front side backplate as an assembly. The front portion of the front side frame cannot be sectioned.
If necessary, replace the front bumper extension bracket, the front bumper beam extension flange, the front subframe front bracket, the front subframe front plate, the front side frame support, and the front damper extension gusset.


NOTE:
Confirm the sheet thickness, tensile strength, and existence of the zinc treatment of both sides, and set the welder to conform to the welding conditions by referring to Front Body Construction.
Welding symbols (The welding symbols with dashed lines have a meaning of the spot welding of the part which is not visible)
( ) and ( )*: The number of welds

1. Body Dimensions - Check

Positioning the replacement parts.
Clamp or tack weld the new parts into position.

2. External Parts Fitting Positions - Check

Temporarily install the related parts, then check for differences in level and clearance. Check the external parts fitting positions. Make sure the body lines flow smoothly. Remove the clamped part.

Front Side Frame and Backplate Set

3. Front Side Frame and Front Side Backplate - Install
1.
Weld the front side frame (A) to the front side frame extension (B).
(?)*: Welding positions with the front side frame extension, the ultra high-strength steel (1500 MPa) part. Confirm the MIG brazing specifications.
(?)*: Welding positions with the front side frame extension, the ultra high-strength steel (1500 MPa) part. Perform the spot welding on the conditions of No. 13, No. 14, and No. 15 in the table shown below. Confirm the spot welding specifications.
Spot Welding Conditions
Condition
No.
Welding
current
(A)
Welding
time
(ms)
Applied force
(N (kgf))
No. 13
8000
600
3432 (350)
No. 14
8500
600
3432 (350)
No. 15
9000
600
3432 (350)
2.
Clamp the front side backplate (A) to the front side frame (B).
3.
From the passenger's compartment, weld the front side frame (A) and the front side backplate (B) to the side frame extension (C) and the dashboard lower (D).
( )*: Welding positions with high-strength steel (except 1500 MPa) parts. Confirm the plug welding conditions.
4.
Weld the front damper housing set (A), the front side frame (B), the front side frame extension (C), and to the front side backplate (D).
( )*: Welding positions with the front side frame extension, the high-strength steel (except 1500 MPa) parts. Confirm the plug welding conditions.
(?)*: Welding positions with the front side frame extension, the ultra high-strength steel (1500 MPa) part. Confirm the MIG brazing specifications.
Left side

Right side


Front Subframe Front Bracket and Front Plate

4. Front Subframe Front Bracket and Front Plate - Install
1.
Weld the front subframe front bracket (A) and the front subframe front plate (B) to the front side frame (C) and the front side backplate (D).

Front Bumper Beam Extension Flange and Front Side Frame Support

5. Bumper Beam Extension Flange and Front Side Frame Support - Install
1.
Weld the front side frame (A), the front side backplate (B), the front damper extension gusset (C), and front bumper extension bracket (D) to the front side frame support (E), the front subframe front bracket (F), the front subframe front plate (G), and the front bumper beam extension flange (H).
( )*: Welding positions with high-strength steel (except 1500 MPa) parts. Confirm the plug welding conditions.