Chevrolet 70 Series 1970, Service Manual

Page: 109 / 841

CAB AND BODY MOUNTINGS 1-78
Figure 28—Removing Horizontal Seal
7. T ilt division channel and vent window
asse m b ly tow ards low ered window and then c a r e ­
fully lift assem b ly out of door (fig. 24).
Im portant: Do not p e rm it the ru n channel
to kink.
INSTALLATION (F ig u res 22 and 24)
In stall vent window assem bly in re v e rs e
o r d e r of "R e m o v a l" p ro c e d u re s. Be su re ru b b er
tip around forw ard p o rtio n of vent window is
p ro p e rly m ated to vent window fram e. A djust
vent window pivot tension a s d irec ted prev io u sly .
P r e s s ru b b e r ru n channel back into door fram e.
DOOR WINDOW GLASS
REPLACEMENT
REMOVAL (Fig. 24)
1. Remove the vent window assem bly a s d i­
re c te d previously under "D o or Vent Window A s­
sem bly R eplacem ent.”
2. Regulate window to tw o -th ird s closed p o s i­
tion.
3. Disengage the g la s s assem bly from the
re g u la to r a rm r o lle r by shifting g la ss assem bly
tow ards front of door. L ift window up and out of
door.
4. If d e sire d , the horizontal seal s tr ip s can
be rep laced using a flat-bladed tool to p ry s trip s
from door a s shown in fig u re 28.
5. Also if d e sire d , the door g la ss run channel
assem bly can be rem oved a t th is tim e. P ull run
channel from door. (R efer to figure 27.)
6. To rep lace the g la ss in g la s s channel, p e r ­
form the following:
a. Squirt solvent along g la ss fille r on both
sid e s of g la ss to soften se a l. Remove g la s s from
channel when fille r is sufficiently soft. P u ll
ru b b e r fille r from channel.
b. Thoroughly clean inside of g la ss channel,
rem oving all ru s t and foreign m a tte r.
c. Window g la ss ru b b er fille r is supplied in
two th ic k n e sse s - 0.047" and 0.057" for selec t
fit betw een g la s s and channel.
d. Cut new piece of channel fille r slightly
longer than channel. P o sitio n fille r (soapstone
side away from g lass) around g la ss.
e. B ru sh inside of channel with a light ap p li­
cation of liquid soap solution to fa c ilita te in s ta ll­
ation. DO NOT USE GREASE OR OIL.
f. P r e s s channel on fille r and g la s s until
firm ly seated .
IMPORTANT: Make s u re channel ends a re
equal distance from edge of g la s s (fig. 26) and th at
re g u la to r a rm tra c k in channel is facing the rig h t
d ire c tio n in re s p e c t to rounded and sq u ared c o rn ­
e r s a t upper edge of g la ss. T rim off ex c e ss fille r
m a te ria l along channel and a t ends.
INSTALLATION (Fig. 25)
1. If g lass run channel was rem oved from
door fram in g, in sta ll channel by p re s s in g run
channel onto place around door fra m e .
2. If the g lass h o rizon tal s e a l s trip s w ere
rem oved fro m door, p r e s s new s e a l s tr ip s into
po sition m aking su re all s trip attaching clip s a re
fully engaged.
3. Lower the d oor window asse m b ly into
door.
4. Engage g la s s channel on the r o lle r of re g ­
u la to r a rm . NOTE: R egulator a rm should be in
window tw o -th ird s clo sed position.
5. In stall vent windows assem b ly a s d irec ted
p rev io u sly .
6. Check op eratio n of vent window assem bly
and window re g u la to r fo r po ssib le binding.
DOOR GLASS RUN CHANNEL
REPLACEMENT
REMOVAL (Fig. 27)
1. Roll window to bottom of door.
2. At upper end of channel, next to vent win­
dow fram e, p ry end of channel from door using a
sm a ll flat-b lad ed in stru m en t.
3. Continue to pull channel downward from
top of door, then upw ard to. rem ove fro m side
fra m e of door.
INSTALLATION (Fig. 27)
1. Apply thin coat of silicone type lu b rican t
to back and s id e s of ru n channel.
2. S ta rt end of ru n channel into door side
fra m e , then force it downward in m anner shown in
figu re 27. By engaging length of channel re q u ire d
to butt ag ain st vent window fram e, the am ount of
channel to be in s e rte d downward can be d e te r­
m ined. Use thum bs to p r e s s channel into position.
CHEVROLET SERIES 70-90 HEAVY DUTY TRUCK SHOP MANUAL