GMC 1982 Light Duty Truck Service Manual page 205

Fig. 2D-105 Adhesive Material Application
curing process. Dry the area where the reveal molding
will contact the glass and the body.
9. To install the outside reveal moldings. If new moldings
are installed, remove the protective tape covering the
butyl adhesive on the underside of the molding. If the
original moldings are reusable, remove any excessive
butyl or urethane. Push molding caps on to either end
of one of the reveal moldings. Press the molding
retention lip into the urethane adhesive against the
edge of the windshield as shown in Fig. 2D-106 taking
care to seat the molding in the corners. Be sure the lip
fully contacts the adhesive all around and that the gap
is entirely covered by the crown of the molding. Slide
molding caps into
connecting them. Use tape to hold the molding down in
the correct position against the body and glass until the
adhesive cures.
10. Install wiper arms, and clean up surrounding areas as
required.
Vehicle should not be driven and remain at room
te m p e ra tu re for
six hours
adhesive.
11. W ater leak test the vehicle. If a leak is found, refer to
Windshield W aterleak Correction procedure.
WINDSHIELD W ATERLEAK CORRECTION
W ith the u re th a n e bonded glass on the G model,
waterleaks can be corrected without the removal of the
reveal moldings or glass from inside the vehicle. Removal of
the garnish and support molding will expose the urethane
bond from the glass to the body. Refer to Fig. 2D-107.
1. Remove garnish molding if so equipped.
2. Remove the windshield support molding from the
pinchweld. Pry up one end and pull the molding away
from the pinchweld.
3. Identify cause and location of the leak. If the leak is due
to a disruption in the urethane bond to the glass, the
A -A
position between moldings
to allow proper cure of
leak can be repaired with addition urethane adhesive.
Use the adhesive m aterial furnished in Kit. No.
9631000 or Essex 551.2 or equivalent.
NOTICE: W ater may be leaking through a pinchweld
seam and not the urethane bead. In these instances, the
entry point must be determined and correction made at
that point in the pinchweld. (Voids in roof gutter sealer
may also produce this type of leak.)
4. Clean up any dirt, foreign material or loose urethane in
the area of 3 to 4 inches on either side of the point of the
leak. Make sure the area is dry.
5. Prime this area with the primer found in the urethane
adhesive Kit. No. 9631000 or Essex SC D 435-20 or
equivalent. Thoroughly agitate the primer before using.
Allow the primer to dry for five minutes.
6. Apply the urethane adhesive to the prepared area. Use
a flat stick or other suitable flat bladed tool to work the
adhesive material well into the leak point and onto the
original material to obtain a water-tight seal.
BODY 2D-43