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1.Set special tool
crankshaft adapter (MB992000) to the crankshaft, and install
the crankshaft
pulley centre bolt and washer.
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2.
| caution |
Never turn the crankshaft
anti-clockwise.
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Turn the crankshaft clockwise, and align the timing
marks of the sprocket. Then set No.1
cylinder to the TDC.
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3.While holding the inlet
camshaft hexagonal area with a wrench or a similar tool,
slightly
turn the exhaust camshaft clockwise to tighten the timing
chain at the timing chain tensioner
side and shorten the plunger of the timing chain
tensioner.
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4.With the plunger of the
tensioner shortened, insert a pin (3 mm in diameter) or a
similar
tool to the hole shown in the illustration of the timing
chain tensioner.
| note |
Pull out the pin or a similar
tool after installing the timing chain
tensioner.
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5.
| caution |
Do not turn the crankshaft
after removing the timing
chain tensioner.
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Remove the timing chain tensioner.
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While holding the hexagonal portion
of the camshaft with a wrench, remove the camshaft
sprocket bolt.
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While holding the hexagonal portion
of the camshaft with a wrench, remove the V.V.T. sprocket
bolt.
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1.Apply a proper minimum
quantity of engine oil to the following
points.
- Camshaft end
- Insertion hole in V.V.T. sprocket (all over inside
and outside surfaces)
- Threads and head of V.V.T. sprocket bolt
- Bearing surface of V.V.T. sprocket bolt
2.Install the V.V.T. sprocket onto the
camshaft.
3.Make sure that the V.V.T. sprocket is
installed all the way onto the camshaft. Holding
the hexagonal portion of the camshaft with a wrench, check
that the V.V.T. sprocket does not
turn.
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4.While holding the
hexagonal portion of the camshaft with a wrench, tighten the
V.V.T.
sprocket bolt to 65 ± 5 N·m.
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While holding the hexagonal portion
of the camshaft with a wrench, tighten the camshaft
sprocket bolt to 92 ± 13 N·m.
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1.Place the timing chain
such that the blue link that is away from the other two blue
links
of the chain is on the crankshaft side.
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2.Install the timing chain
onto the crankshaft sprocket, aligning the blue link with
the
mark on the sprocket.
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3.Install the chain onto the
V.V.T. sprocket, aligning the blue link with the mark on the
sprocket.
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4.Install the chain onto the
camshaft sprocket, aligning the blue link with the mark on
the sprocket.
When doing this, rotate the V.V.T.
sprocket or the camshaft sprocket by a tooth or two
and then align the blue link and the
mark.
5.Ensure that all of the 3 pairs of the
timing marks are aligned.
6.Install the chain
guide and the tensioner lever.
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1.Check the projection (A)
of the timing chain tensioner plunger.
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2.If the plunger projection
does not satisfy the standard value (approx. 4 mm), observe
the following procedure to adjust it.
(1)
Pull the pin or the similar tool out of the
tensioner.
(2)
Rotate the tensioner cam in the arrow direction to push the
plunger slowly.
(3)
Insert the pin or the similar tool again when the plunger
projection reaches approx.
4 mm.
(4)
Check that the projection of the locked plunger is approx. 4
mm.
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3.Install the timing chain
tensioner with the pin or the similar tool to the cylinder
block,
and tighten the timing chain tensioner mounting bolts to the
specified torque.
Tightening torque: 9.5
± 2.5 N·m
4.After installing
the timing chain tensioner, confirm that the timing marks of
each
sprocket are aligned with the TDC of No.1 cylinder, and the
marked link plate (blue-coloured
area) of the timing chain is aligned with the specified
position of each sprocket. Then pull
out the pin or a similar tool of the timing chain tensioner,
and apply tension to the timing
chain.
5.Remove special tool crankshaft adapter
(MB992000).
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