Torque Cylinder Head Bolts; Tighten In Three Stages; Tighten In Four Stages - Volvo D 20 Service Manual

Group 21 Engine
n
a
Cylindet head, installing
oooo9/@
D20
@o.r'o'o@@
@@@@ @). o@ -
D24
@ @ @ O @ l O @ , 1
H8
Toique cylinder head bohs
Tighten all bolts one at a time in order specified adia-
csnt bofore proceeding wjth next stage.
't1s9082
12-sided wrench P/N 115 9082-5
Tighten in three stagesl
1 5 0 N m = 3 7 f t l b s
2 7 0 N m = 5 r f t l b s
3 9 0 N m = 6 6 f t l b s
Tighten in four stagesl
r 4 0 N m = 2 9 f i l b s
2 60 Nm = 44 ft lbs
3 75 Nm = 55 ft lbs
4 angle-tighten 18{f in one movement without stop-
ping. See illustration below:
48