Volvo D24 - Replacing Coolant; Fill Coolant; Tighten Cylinder Head Bolts; Check Tightening of Cylinder Head Bolts

Group 21 Engine
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Cylinder
head, installing
H37
Fill coolant
Capacity:
D 20
=
8.1
liters
(8.6
US
quarts)
D 24
=
9.3 tirers
(9.8
us
quafts).
Flush cooling system before adding
new coolant, see
Group 26 Cooling System.
Ser
dcs ooard hedrer conrro' ro 1i.(. Tur'r o'r eng
na
and warm'up for 5 minutes. Add coolant
during this
time. Connect hose lo cold start device.
Fill
coolant
to
mouth of expansion tank
(above
max) and screw on
H38
Tighten cylinder
head bolts
Wa.m-up engine until oi temperalure
is at least 50'c
1122"F1.
Remove vacuum
pump
with
plunger
and
va ve cover.
M 11 boltsr lorque to 90
Nm
(6s
ft lbs)
M 12 bolts:an9le'tighien
90'in one movemenl
wrlh otrt
stopping.
Instal
plrrnp
plunger
and
Replacing coolant
Always Lrse type C blue-9reen coolant. Remember
to
replace decal
(P/N
1331473
7)
on expansion
tank if ne-
Type C blue-green coolant
All diesel and
petro
(gasoline)
engines
manufactured
since
1982
are
filled with type C coo ant.
Check-tightening
of cylinder head bolts
lmportantr Bolis must be
re
torqlecl after 600-1,200
miles
(1,000
2,000 krn). See next
page.
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56