GMC 1982 Light Duty Truck Service Manual page 175

H O L D IN G A W R E N C H
O N THE H EX N U T
Fig. 2D-30--Adjusting Tension
th e seal has softened, rem ove th e glass from the
channel.
2. Thoroughly clean the inside of the glass channel with
sandpaper, rem oving all rust, etc.
3. Using new glass channel filler, cut the piece to be
in stalled two inches longer th a n necessary for the
channel. Place this piece of filler (soapstoned side of
filler away from glass) evenly over the edge of the glass
which will fit in the channel. The extra filler extending
beyond the rear edge of the glass should be pinched
together to hold it in place during glass installation.
O ne side of this filler (th e outside of the roll) is
soapstoned. This is the side which goes into the metal
channel.
4. Brush the inside of the m etal glass channel freely with
ordinary engine oil. This will enable the glass and filler
to slide freely into the channel. Push the glass with the
filler around it into the channel until it is firmly seated.
A fter the glass is firmly in place, the oil softens the
filler, causing it to sw ell, thereby m aking a w atertight
Fig. 2D-31--Bend Tabs Over Hex Nut
[TO A D J U S T T E N S IO N ,
T U R N THE V E N T W H IL E
BEND TAB OVER
HEX NUT
seal. Trim off the excess filler m aterial around the
channel and at the ends of the channel.
Glass should be installed so th at rear edge is parallel to
the division post. Allow full cure before w ater testing.
Installation
1. Lower the ventilator assembly into the door fram e.
2. M ake certain the rubber lip is positioned inside the
inner and outer panel before tightening screws.
3. Reinstall all screws and tighten.
4. Install and tighten the three screws at the upper front
of the door.
A djustm en t
1. A djust the ventilator by placing wrench on adjusting
nut thru access hole and turning vent window to the
desired tension. See figure 2D-30.
2. A fter m aking adjustm ent bend tabs over the hex nut on
base of assembly. See figure 2D -3 1.
3. Install arm rest screws and trim panel.
4. Install window regulator handle.
DOOR W IN D O W ASSEM BLY--FIG . 2 D -3 2
R eplacem ent
1. Completely lower glass to bottom of door.
2. Remove door arm rest and trim pad as outlined in this
section.
3. M ask or cover upper portion of door window frame.
Remove v entilator assem bly as previously outlined.
4. Slide glass forw ard until front roller is in line with
notch in sash channel. Disengage roller from channel.
5. Push window forw ard and tilt front portion of window
up until rear roller is disengaged. See figure 2D-33.
6. Put window assem bly in normal position (level) and
raise straight up and out.
7. Reverse above procedure for installation.
Fig. 2D-32--Door W indow and Regulator
BODY 2D-13