GMC 1982 Light Duty Truck Service Manual page 169

Fig. 2D-14~Applying Pressure to Windshield
1. One tube of u rethane adhesive m aterial.
2. One dispensing nozzle.
3. Steel music wire.
4. R ubber cleaner.
5. R ubber primer.
6. Pinch-weld prim er.
7. Blackout prim er.
8. F iller strip (for use on w indshield in stallatio n s on
vehicles equipped with em bedded windshield antenna).
9. Prim er applicators.
A d d itio n a l M a te ria l Required:
1. R ubber lubricant No. 1051717 (available through the
service parts system ).
2. Alcohol for cleaning edge of glass.
3. Adhesive dispensing gun No. J-24811 or a standard
household cartridge type gun reworked as follows:
a. W iden end slot to accept dispensing end of adhesive
m aterial tube.
b. Reduce diam eter of plunger disc on rod so th at disc
can enter large end of adhesive m aterial tube.
4. C om m ercial type razor knife (for cutting around edge
of glass).
5. W eatherstrip tool set J - 2 189.
6. Six glass spacers J-22577 (for checking windshield
glass to opening).
R em oval
1. Before removing the windshield, m ark the location of
the break on the windshield rubber channel and the
body. Protect the paint finish inside of the cab. M ask
aro u n d the w indshield opening and outside, lay a
suitable covering across the hood and fenders.
2. Remove windshield reveal molding (lock strip) and
reveal molding cap.
3. To free w indshield ru b b e r ch an n el of w eath erstrip
loosen the lip of the windshield w eatherstrip from the
pinchweld flange along the top and at the sides by
applying firm, controlled pressure to the edge of the
glass. A t the same tim e assist the lip of the rubber
w eatherstrip channel over the pinchweld flange with a
flat bladed tool. See figures 2D-14 and 2D-15.
4. W ith the aid of an assistant outside the cab, remove the
windshield from the opening. See figure 2D-16.
5. Rem ove all excess u reth an e
rem aining pieces of w eath erstrip from pinch-w eld
flange.
6. If sheet m etal and paint repairs are required, refer to
"R epairing and Refinishing Pinchweld Flange" of this
section.
Checking W indshield O pening
Due to the expanse and contour of the windshield it is
im perative in the event of a stress crack that the windshield
opening be th oroughly
replacem ent windshield. The replacem ent glass is used as a
tem plate.
1. Check for the following conditions at the previously
m arked point of fracture.
a. Chipped edges on glass.
b. Irregularities in body opening.
c. Irregularities in rubber channel w eatherstrip.
2. C heck flange a re a for solder, weld high spots, or
hardened spot-weld sealer. Remove all high spots.
3. Check windshield glass to opening, by supporting glass
with six spacers contained in packet J-22577. See figure
2D-17.
N O TICE: Do not strike glass ag a in st body m etal.
Chipped edges on the glass can lead to future breaks.
4. W ith the w indshield sup po rted and cen tered in its
opening, check the relationship of the glass to the body
opening flange around the entire perim eter of the glass.
5. Check the relationship of glass to opening as follows:
a. Inside edge of glass to body flange.
b. O uter edge of glass to parallel body m etal.
6. M ark areas of body m etal or flange to be reform ed.
Remove glass and correct as outlined in this section.
Fig. 2D-15--Assisting Weatherstrip over Flange
BODY
adhesive and
checked before installing
2D-7
any
a