Volvo D20 - Page 58

Group 27 Reconditioning engine
Cylinder head, insraJling
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56
Hl
Measure piston height above cylinder block and
select gasket
Piston height above
cylinder block
Gasket
mm lin) notches thickness mm
0.67-0.80 (0.026-0.031)
0.81-0.90 (0.032-0.035)
0.91-1.0210.036-0.040)
(in)
1 ............... 1.4 (0.055)
2 ............... 1.5 (0.059)
3 ............... 1.6 (0.063)
Clean holes for cylinder head bolts
H2
Oil and dirt must be removed from hales otherwise
gasket may leak as a result of insufficient tightening
pressure.
Set cylinder 1 to TDC
Flywheel timing mark at 'O'.
H3
Use a 27 mm socket or wrench 5188 on vibration
dampar center balt to tum engine.
lnstall guide pins in cylinder block
5233 for blocks with M 11 balts.
5234
for blocks with M 12 balts.
H4
Two outer pins on right side hold gasket in position.
Cylinder head
is prevented from sliding and damaging
gasket by two inner pins on left .
Importentl Use all four pins, located as illustrated.