Liftgate Control Assembly; Door Opening Cover Plate; Fractured Panels - Chevrolet 10 1971 Series Chassis Service Manual

Fig. 64— Liftgate Control Assembly
6. Cut two pieces of woven glass fiber cloth for backup
of sufficient size to overlap the fracture by approxi­
mately two inches.
7. Clean up repair area with Prep-Sol or equivalent then
use tack rag for finish cleanup.
8. Use the Repair Procedures previously described.
In some cases it may be advantageous
NOTE:
to provide additional reinforcements along a
fracture. This may be accomplished by placing
glass cloth strips in the panel break before
applying the plastic mixture.

Fractured Panels

Sometimes damage will occur to panels where the
underside is inaccessible or for reasons of panel con­
tour it is impractical to use back plies of fiber glass
cloth. The following repair operations are typical of
this type of damage.
Fig. 66— Door Opening Cover Plate
1. Prepare the damaged area by grinding or filing all
cracked and splintered material away from the
fracture.
2. Bevel the edge of the fracture at approximately a
20° angle.
3. Remove paint from area surrounding fracture.
4. Scuff surface to provide a good bonding surface.
Then, clean up area with Prep-Sol or equivalent and
wipe dry.
5. Protect adjacent panels by masking, use non-staining
masking tape.
6. Cut a strip of fiber glass cloth of sufficient size, so
the fracture will be lapped from 1 to 2 inches on all
sides.
7. Prepare plastic mixture in an unwaxed paper cup.
(See Reinforced Plastic Repair Kit (Epoxy Type)
procedure.)
8. Impregnate glass fiber cloth by brushing or dipping
in plastic mixture. Squeeze excess mixture from
cloth.
Avoid over-rich plastic areas in the
NOTE:
glass cloth, as the strength of the patch is
directly proportional to the glass content of
the patch.
9. Position plastic impregnated fiber glass over the
fracture on the exterior of the panel, lap the break
by 1 to 2 inches, and depress into fracture.
10. Carefully work excess plastic out of woven glass by
sponging from the center of the break outward.
Hold woven glass in place with Saran-
NOTE:
wrap or some similar material until plastic
"
resin gels" .
11. Trim excess or loose strands of fiber glass from
patch.
12. If low spots exist, prepare another plastic mixture
of resin and hardener and mix thoroughly. To this
mixture add short fibers cut from glass cloth to
give the mixture a putty-like consistency.
13. Liberally apply the plastic mixture with a spatula
to fracture and surrounding area. Deposit enough
material build-up to allow for filing and sanding
operations.
BODY 1-25
10-30 CHEVROLET TRUCK SERVICE MANUAL