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1.Warm up the engine until
the engine coolant temperature is 80 -
90°C.
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2.Remove all of the glow
plugs.
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3.
| caution |
- If the dent on the hexagonal section of
the camshaft
faces up ward, the No. 1 piston is at
the TDC on the compression stroke. If
not, rotate the
crankshaft on more turn normal
direction.
- Be sure not to turn the crankshaft in
anti-clockwise as this can cause a
damage
of the tensioner which adjust the timing
chain tension at timing gear. If the
crankshaft is
turned in the anti-clock wise, remove
the tensioner and re-install
it.
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Align the notch of the crankshaft pulley with the
"0" to set the No. 1 cylinder to compression
top dead centre position.
| note |
Remove the filler cap, and
check the condition of the camshaft. If the
projection on the camshaft
faces up, the No. 1 cylinder is at compression
top dead centre.
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4.Before installation of
special tool, make sure that push rod is protruding by 12
mm.
| note |
Notch of push rod can be
adjusted with an inner nut.
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5.Connect the dial gauge to
the special tool.
6.Put the dial gauge on the push
rod until its needle starts to move, and hold the dial
gauge using the securing screw.
| note |
Hold the dial gauge within 0.5
mm after its needle has moved.
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7.Remove the timing check plug of the
injection pump and the gasket, and then install
the special tool.
| note |
- Check that the timing check plug is
attached to the gasket which was
removed.
- If it is not attached, it may have
fallen down or still be attached to the
pump,
so it should be checked.
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8.Hold the special tool at the position where
the dial gauge needle starts to move.
| note |
The special tool can be turned
within one turn if the dial gauge is difficult
to read.
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9.Turn the crankshaft one
more in the clockwise direction to set the No. 1 cylinder
approximately
30° before compression top dead
centre.
10.Set the needle of the dial gauge to
0.
11.Check that the needle doesn’t move
even if the crankshaft is turned slightly
(2 - 3°) in both clock wise and anti-clockwise
direction.
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12.Turn the crankshaft in
the clockwise direction to align the crankshaft notch to
7° ATDC.
13.Check that the value indicated
on the dial gauge is at the standard
value.
Standard value: 1 ± 0.03
mm
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14.If the needle is outside
the standard value, adjust the injection timing by the
following
procedure.
(1)
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| caution |
When loosening the
union nuts, hold the delivery valve
holders with a spanner so that they
don’t turn at the same
time.
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Loosen the injection pipe union nuts (4 places) and
the injection pump fixing bolts and
nuts in that order. (Don’t remove the bolts and
nuts.)
(2)
Tilt the injection pump to the left and right and adjust the
needle on the dial gauge
so that the display value is uniform.
(3)
Provisionally tighten the mounting nuts and bolt of the
injection pump.
(4)
Repeat steps 9 - 13 to check if the adjustment has
been made correctly.
(5)
Tighten the mounting nuts and bolt securely.
(6)
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| caution |
When tightening
the union nuts, hold the delivery
valve
holders with a spanner so that they
don’t turn at the same
time.
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Tighten the injection pipe union nuts
securely.
15.Remove the special
tool.
16.Install a new gasket to the timing check
plug.
17.Tighten the timing check plug
securely.
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