363 (III) Side Wall AssemblyLH/RH side wall assembly is frame structure. It is mainly composed of parts such as LH/RH front pillar sub-
assembly, LH/RH central pillar reinforcement, LH/RH upper side rail, LH/RH floor side rail outer panel, LH/
RH side wall inner/outer panel...etc., by welding them together. Figure 5-4 is the dismantle diagram.
Figure 5-4 Decomposition Diagram of Quarter Parts
1. LH/RH Front Pillar Inner Plate 2 LH/RH Upper Side Member Front Inner Plate 3 LH/RH Front
Pillar Outer Plate Reinforcement 4 LH/RH Upper Side Member Inner Plate Assy.
5.LH/RH Doorframe Lower Side Member Outer Plate Reinforcement 6 LH/RH Central Pil-
lar Outer Plate Reinforcement 7 LH/RH Rear Wheel House Inner Plate Sub-assy 8 LH/RH Rear
Wheel House Outer Plate Sub-assy 9 LH/RH Side Wall Outer Plate 157926485874293163 Front Left
Right
3812 Adopt sound insulating material to reduce the noise in the compartment.
For the heat, vibration and sound insulation of the body, they are a systematic engineering. Besides you
take measures on effectively improving the rigidity of the body and sealing technique, the following
measures can be taken in the body design and manufacturing:
a. Sound insulating material: paste a layer of asphalt board on the floor and FR/RR fenders. Add
insulation pads on the cowl and the floor.
b. Sound absorbing material: adopt formed carpet which is composed of front floor carpet and rear
floor carpet.
The FR/RR floor carpets are integrated with the floor and sound absorbing pad. It is required that the
floor and the pad will not peeled when torn by outside force.
3. Sealing
An elaborate concern is taken from design and manufacturing on the body sealing. Sealing is very important
for the operation performance of dust prevention, water proofing, corrosion prevention, heat protection, heat
preservation, noise reduction, etc. Especially, the floor and cowl are located in the harshest outside environment.
The mud splashing from road, dust and sand, wheel noise, engine noise and hot air will get in the interior
environment by every opening.
After the body assemble welding completes, apply a line of sealant on all joints of the body to avoid water and
vapor permeating into the metal joint and also to ensure the quality for the following painting.(Figure 5-25).
Besides, a layer of stone-strike proofing paint is applied on the bottom of the body. The paint has good sealing
effect. For the sealing of mounting parts on the body, traditional methods are generally adopted, such as
rubber sealing ring, cover, rubber strip, special-shaped sealing strip, etc. But in order to make more minute
and rigorous considerations in design and manufacturing of structural parts and the stability of the dimension
relationship of contacting sealing. For windshield and rear back door glass, a natural-curing high-tensile
sealant is adopted in sealing. It represents the advanced modern techniques in reliability and mounting technology.5-25 1. 2. 3. Figure 5-39 Area Where Chloride Ethylene Plastisol Is Applied
1. Front Mud Guard 2. Rear Side Wall 3. Rear Wheel HouseFront
