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23-80
CONVERTIBLE MAINTENANCE
Rear Hinge Adjustment IAR-AV Models1
Inspect the center and rear roof side rail alignment
at the quarter glass. If additional clearance is noted
in this area, as indicated by the hinge being jack-
knifed open, again unfasten the top header. Remove
the side rail weatherstrip and retainer and adjust the
rear hinge
set
screw (Fig. 167) from the underside of
the center rail until proper alignment and clearance
is obtained.
Adjusting the two hinge set screws will normally
correct any roof side rail alignment problems. How-
ever, if an alignment problem still exists, and addi-
tional leveling of the roof side rails is required, the
linkage through the main control prop link bracket
can be adjusted.
M A I N CONTROL PROP LINK
The main control prop link incorporates serrated
adjusting links on both sides. Loosen the screws just
enough to permit moving the link up
or
down, as
re-
quired. Lengthening the link causes the center rail to
rotate on its pivot in the rear rail, lowering the front
and center rails to improve the weatherstrip
fit
with
the door and quarter glass. When proper alignment
has been obtained, tighten the adjusting screws. In-
spect the side rail hinge adjustment and adjust as nec-
essary.
Top Shifts To One Side
If
it
is necessary to pull the top to one side to en-
gage the locating dowels in their jackets in the wind-
shield header or if the top shifts to one side when
raising the header from the windshield header, in-
spect the positions of the main control prop links.
Links not adjusted uniformly, change the operating
angle of the linkage causing the top to twist when
it
is raised.
When one link is adjusted, be
sure
the position of
the link on the opposite side is inspected and adjusted,
if necessary.
POWER LINK ADJUSTMENT
CAUTION: It should not
be
necessary to adjust the
power links (Fig.
172)
(slide rail structure mounting
supports) unless the top assembly has been re-
moved for servicing or replacement of linkage
parts. When this is done, be sure both sides are
adjusted to provide identical travel of the piston
rods.
The power links
are
part of the folding top frame
which when loosened, permit forward or rearward
movement.
It
is important that the links on both sides
be positioned at approximately the same position. If
one is positioned rearward of the other one, it would
cause the power piston rod on that side to start to
actuate the linkages lightly ahead
of
the
piston
rod
on the opposite side. This can cause one side
of
the
top to twist slightly.
The rearward position of the link also
increases
the travel of the power piston rod, resulting in a
small amount of overtravel when the top is fully
raised. When the power is turned
off,
the power pis-
ton assumes
its
normal position due
to
leak-back
in
the hydraulic system.
REAR B O W TENSION CABLES
T w o
steel cables attached to the rear bow and the
top well are provided to keep the number 3 bow from
moving forward and wrinkling the top material. They
also prevent excessive tension on the backlight zip
per. The upper end of the cables is attached to the
bow by screws. The lower end is threaded into a
clinch nut attached to a bracket at the top well which
permits the cables to be shortened
or
lengthened to
increase or decrease tension (Fig. 177).
CAUTION: Before attempting to adjust tho cablw,
unfasten the top header latches to relieve tension
on the linkage.
Testing Cable Adjustment
On the inside of the vehicle, locate the centerline
of
the top on the rear bow and the ledge of the top well.
From the centerline, measure
20
inches (AR models)
17% inches (AV models) each side of the centerline
at the bow and the ledge. These are locating points
for backlight depth dimensions that govern the cable
tension.
Measure down from the rear edge
of
the rear bow
to the top well ledge on each side.
If the spacings between the bow and the ledge
are
not
25%
inches (AR models)
24
inches (AV mod-
/ ? + = =
/$f$f*
SCREW
' . /
E Y E
TENSION CABLE
JMm
I Y U I
k
.ADJUSTING END
/
NK921
I
Fig. 177-Rear
Bow tension Cables
IAP Models)
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