Chevrolet 1980 Light Duty Truck Service Manual page 136

2D -12 BODY
DOOR VENTILATOR ASSEM BLY-Fig. 2D -28
Removal
The channel between the door window glass and door
vent is removed as part of the vent assembly.
1. Regulate the door window glass to the full down
position.
2. Remove clip from the window regulator handle, and
knob from lock rod.
3. Remove arm rest screws and trim panel. See figure
2D-27.
4. Remove screws attaching ventilator lower assembly
to door panel.
5. Remove three screws at the upper front of the door
frame.
6. Pull upper portion of vent assembly rearward and
raise upward while rotating counter clockwise.
7. Turn vent assembly 90° and carefully remove by
guiding up and out. See figure 2D-29.
V entilator Glass Replacement
1. Using an oil can or similar means, squirt prepsol or
equivalent on the glass filler all around the glass channel
or frame to soften the old seal. When the seal has softened,
remove the glass from the channel.
2. Thoroughly clean the inside of the glass channel
with sandpaper, removing all rust, etc.
RETAINING SPRING
(DISENGAGED)
TOOL J-9886-01
Fig. 2 D -26 --C lip Retained Inside H andle Removal
3. Using new glass channel filler, cut the piece to be
installed two inches longer than 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.
One side of this filler (the outside of the roll) is
soapstoned. This is the side which goes into the metal
channel.
4. Brush the inside of the metal 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. After the
glass is firmly in place, the oil softens the filler, causing it
to swell, thereby making a watertight seal. Trim off the
excess filler material around the channel and at the ends of
the channel.
Glass should be installed so that rear edge is parallel
to the division post. Allow full cure before water testing.
PUSH TOOL IN
Fig. 2 D -27--Doo r Trim Pad
Fig. 2 D -2 8 ~ D o o r V e n tila to r Assem bly
LIG H T T R U C K S ER V IC E M AN UAL