Mitsubishi 3000GT 1991, Service Manual

Page: 79 / 1146

E N G I N E Belt
(2) Using paper clips, install the timing belt in the following
order with care not to allow the belt to slack.
Exhaust camshaft sprocket (front bank side)
Intake camshaft sprocket (front bank side)
pump pulley Intake camshaft sprocket (rear bank
side) Exhaust camshaft sprocket Idler pulley
Crankshaft sprocket Tensioner pulley
NOTE
Since the camshaft sprockets turn easily, secure them
with box wrenches to install the timing belt.
Caution
1. Be careful, the camshaft is turned by the reac-
tion of valve spring.
2. If the timing belt is reused, install it so that the
arrow marks made at removal are in the direc-
tion of rotation.
(3) Turn the tensioner pulley so that its pin holes are
located above the center bolt. Then, press the tensioner
pulley against the timing belt and, at the same time,
temporarily tighten the center bolt.
(4) Check that the timing marks on all sprockets are aligned
properly.
(5) Remove the four clips.
. ADJUSTMENT OF TIMING BELT TENSION
(1) Rotate the crankshaft turn counterclockwise, then
rotate it clockwise until the timing marks are aligned.
(2) Loosen the center bolt on the tensioner pulley. Using
the special tool and torque wrench, apply tensioning
torque to the timing belt and, at the same time, tighten
the center bolt to specification.
Specified torque: Nm (7
[Timing belt tensioning torque]
Caution
When tightening the center bolt, make sure that the
tensioner pulley is not rotated together.
(3) Remove the set pin from the auto tensioner. At this
time, make sure that the set pin can be easily removed.
(4) Rotate the crankshaft two turns clockwise and leave it
as is for five minutes or more. Then, check again that
the set pin can be easily removed from, and installed to,
the auto tensioner.
NOTE
Even if the set pin cannot be easily inserted, the auto
tensioner is normal if its rod protrusion is within
specification.
Standard value (A): 3.8 4.5 mm in.)
If the protrusion is out of specification, repeat steps (1)
to (4).
(5) Check again that timing marks on all sprockets are
aligned properly.
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