Chevrolet 70 1969 Series, Shop Manual

Page: 65 / 913

CAB A N D BO DY M OUNTINGS 1-38
The outer surface of door, when properly in­
stalled, should be flush with adjacent surfaces of
cab. If necessary, reposition door as follows:
1. Loosen slightly all cap screws which attach
hinge half to cab pillar.
2. If door is to be brought outward from cab
opening, apply pressure at door hinge area from
inside cab. If door is to be moved inward, apply
pressure on door outer panel at hinge area. Be
careful not to damage door paneling by applying
excessive pressure.
3. After adjustment has been made, tighten
hinge cap screws firmly. Open and close door to
check operation. Readjust if necessary.
N O T E : It may be necessary to reposition
striker on pillar after making above adjustment.
See "Striker Bolt Adjustment.”
DOOR STRIKER
The door striker consists of a special bolt
and washer assembly which is threaded into a
tapped, floating cage plate located behind the cab
lock pillar as shown in figure 8. The door is se­
cured in closed position when the lock cam in door
engages and snaps-over the striker bolt. Striker
bolt can be replaced or adjusted as directed under
applicable headings.
S T R IK E R B O L T R E P L A C E M E N T (Fig. 8)
1. Mark position of striker bolt spacer or
washer on door pillar using pencil or crayon.
2. Insert a 5/16-inch hex wrench into head of
striker bolt, then turn bolt counterclockwise from
plate in cab pillar.
3. Reverse above procedure to install striker
bolt. Make sure the thin plastic washer is position­
ed against the painted door opening pillar and cen­
ter the bolt washer within marks on pillar.
Figure 9— Sight C h e ck in g Striker Bolt Alignment
4. If door has been removed and then installed
or aligned in opening, the door should not be closed
completely until a visual check is made to deter­
mine if lock cam in door will engage the striker
bolt correctly. Center of striker bolt should be in
direct alignment with " V " slot in door. See figure
9. If necessary, reposition striker bolt as directed
below under "Striker Bolt Adjustment."
S T R IK E R B O L T A D J U S T M E N T (Fig. 10)
Striker bolt on cab pillar is adjustable vert­
ically and transversely after loosening the bolt
with a 5/16-inch hex wrench. The bolt fore and aft
adjustment is obtained by use of shim spacers lo­
cated between the bolt washer and the cab pillar.
Figure 8 illustrates location of bolt, washers, and
spacer.
Striker Bolt Fore and Aft Adjustment
1. To check striker bolt for proper "fore" and
"aft" adjustment, smear grease or paint to contact
side of bolt as shown in figure 10.
2. Slowly close door until lock cam of door
just contacts the side of striker bolt and makes an
impression in the grease or paint.
3. Measure distance between head of bolt and
the cam impression in grease. Distance should
measure 1/8-inch as shown in right view of figure
10. This dimension is necessary to assure that the
head of striker bolt will ride at center of nylon
shoe which is located just in back of the lock cam.
To obtain this dimension, remove the striker
bolt and install or remove shim spacers. Spacers
are available in two thicknesses: 5/64-inch and
5/32-inch. Make sure the thin plastic washer is
located next to cab pillar.
After obtaining proper fore and aft adjustment,
tighten bolt snug only at this time and then proceed
with the "Striker Bolt Height Adjustment."
Striker Bolt Height Adjustment
This adjustment is important to assure that
the right proportion of door's weight will rest on
Figure 1 0— Striker Bolt Alignment
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L