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Using special tool cylinder head
bolt wrench (MB991654), loosen the cylinder head bolts in
two or three steps in the order of the numbers shown in the
illustration.
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1.
| caution |
Do not allow any foreign
materials get into the coolant passages, oil
passages and cylinder.
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Degrease the cylinder head gasket mounting
surface.
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2.Assemble to the cylinder
block so the cylinder head gasket identification mark
"64-278" is at the top surface and on the inlet
side.
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1.Insert the O-ring to the
water pipe, and coat the outer portion of the O-ring with
water or engine coolant.
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2.Insert the water pipe to
the water by-pass fitting of the cylinder head assembly, and
install the cylinder head assembly to the cylinder
block.
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1.Check that the nominal
length of each cylinder head bolt meets the limit. If it
exceeds the limit, replace the bolt with a new
one.
Limit (A): 99.4 mm
2.Apply a
small amount of engine oil to the thread of the bolts and to
the washers.
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3.Use special tool cylinder
head bolt wrench (MB991654) to tighten the cylinder head
bolts as follows:
(1)
Tighten the cylinder head bolts to 78 ± 2 N·m in
the order shown.
(2)
Loosen the bolts fully in the reverse order of that
shown.
(3)
Tighten the cylinder head bolts to 20 ± 2 N·m in
the order shown.
(4)
Apply a paint mark to the heads of the cylinder head bolts
and cylinder head, then tighten 90 degree angle as
shown.
(5)
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| caution |
The bolt is not
tightened sufficiently if the bolt
is tightened less than 90 degree
angle.
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Tighten the bolt an additional 90 degree angle as
shown. Then check to see that the paint mark on the head of
the cylinder head bolts and the paint mark on the cylinder
head are aligned.
(6)
If tightening the bolt 90 degree angle results in moving the
paint mark on the bolt past the paint mark on the cylinder
head, remove the bolt and start over from step 1.
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).