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1.Push the tensioner lever
by hand and push in the plunger of the timing chain
tensioner
until it hits the bottom. Then, insert a hard wire (piano
wire or the like) of Φ1.0
or hexagonal bar wrench (1.0 mm) into the fixing hole of the
plunger.
warning |
If the timing chain tensioner
set pin (fixed wire) suddenly comes off the
timing chain tensioner, it is very dangerous
because the plunger jumps out.
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2.Remove the timing chain
tensioner.
note |
At that time, the timing chain
cannot be removed.
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1.Apply the appropriate and
minimum amount of engine oil to the balance
unit bolt thread portion and the lower portion of the
flange.
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2.Install the balancer unit
to the lower crankcase and tighten them to the tighten
torque
of 20 N·m in the order shown in the
illustration.
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3.Use Special Tool Angle
Gauge (MB991614) to tighten them an additional
60°.
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1.Use a rag to wipe off the
dirt on the crankshaft gear and the crankshaft. Remove the
grease
on the portion shown in the illustration.
note |
Remove the grease in order
that adhered oil cannot decrease the wear
coefficient of the
pressed area.
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2.Apply the appropriate and
minimum amount of engine oil to the thrust plate, as shown
in
the illustration. 3.Install all of these so that
the thrust plate face where the engine oil is applied
can face toward the balancer shaft drive housing &
gear. 4.Install all of these aligning all the
timing marks. 5.When tightening the balancer shaft
drive housing and the gear, tighten the bolt shown
in the illustration first.
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Use a rag to wipe off the dirt on
the crankshaft sprocket and the crankshaft. Remove the
grease on the portion shown in the illustration.
note |
Remove the grease in order
that adhered oil cannot decrease the wear
coefficient of the
pressed area.
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1.Install all of these so
that the centres of two location marks of the crankshaft
sprocket
can align with the border line between the cylinder block
and the lower crank case. 2.Install the crankshaft
key.
note |
This position becomes the No.1
cylinder compression top dead centre
finally.
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3.Align the timing mark of the camshaft and
the timing mark of the crankshaft sprocket
with the link plate of the timing chain to install the
timing chain. 4.Tighten the chain guide to the
specified torque of 11 ±
3 N·m. 5.Tighten the tensioner lever to the
specified torque of 24 ±
3 N·m.
After the installation, check that the turn direction has
flexibility at the bolt support point. 6.Tighten
the timing chain tensioner to the specified torque of 11
±
3 N·m.
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7.
warning |
If the timing chain tensioner
set pin (fixed wire) suddenly comes off
the timing chain tensioner, it is very dangerous
because the plunger jumps out.
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After that, pull out the set pin (fixed wire) to
give tension to the timing chain. Check that the timing
chain tensioner plunger fits securely into the tensioner
lever groove. Check that the timing chain link securely
engages with the gear without going beyond. Check that
the timing chain does not deviate from the chain guide and
the tensioner lever
chain running surface. 8.Check that each timing
mark aligns with two link plates of the timing
chain.
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