Mitsubishi 3000GT Service Manual page 1066

Roof lid
Front holder
BODY - Sunroof
(4) Press the roof lid against the front holder while keeping
it in the tilted-up position.
(5) Install the sunroof motor.
INSPECTION
SLIDING RESISTANCE OF ROOF LID CHECK
(1) Remove the roof lid trim.
(2) Loosen the roof lid front mounting nuts and tie a rope
to them.
(3) Fully close the roof lid and then remove the sunroof motor.
(4) Use a spring balance to measure the sliding resistance
of the roof lid.
Standard value: 147 N (33 Ibs.) or less
(5) If the sliding resistance of the roof lid is higher than the
standard value, check the following.
Lifter-slider assembly installation, warping or jamming by
foreign materials
Drive cable connection
Tilt of roof lid
SLIDING FORCE OF SUNROOF MOTOR'S CLUTCH
CHECK
1. Insert the sunroof wrench of the on-board tools into the
hexagonal hole in the motor drive shaft, and hook a spring
balance as shown in the illustration.
2. Apply battery voltage between terminals (1) and (2) of
the sunroof motor connector to operate the motor.
3. Measure the load on the spring balance at the point where
the rotation torque of the motor matches the spring force
of the spring balance.
Standard value: 39-49 N (8.7-11 Ibs.)
Caution
1. The spring balance should be kept a right angle
to the sunroof wrench.
2. If a wrench other than that in the on-board tools
is used, the value for the clutch sliding force will
be different, so only the on-board tool should be
used.
4. If the clutch sliding force is outside the standard value,
replace the sunroof motor.
TSB Revision
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