Cylinder Head, Assembly
Measuring piston height, installing the
cylinder head and other assembly
1 Clean
the
cylinder head and engine block mating
planes. Remove any rust and carbon from bolt
holes and from the threads on the cylinder head
bolts.
2 Put the valve lifters in their original places.
IMPORTANT!
Refer to Timing Gear, Installation page 80 for
placement of valve lifters.
3
Put the new cylinder head gasket in place with the
marking (1) upwards. Check that the hollow pins
(2) are installed in the block.
NOTICE! The new gasket must be of the same
thickness as the old one.
NOTICE! If a piston, connecting rod, crankshaft
or engine block has been changed, new meas-
urement must be done.
4 Dip the cylinder head bolts in engine oil and leave
them to run off on a strainer. The bolts should
have stopped dripping when they are installed
(otherwise oil might well up and be regarded as
leakage).
IMPORTANT!
The bolts are phosphated and must not be cleaned
with a
steel wire brush. If the cylinder head is painted,
the contact surfaces for the cylinder head bolts must
be free from paint. The clamping force in the joint
could otherwise be very poor.
5 Put the cylinder head in place.
Difference in height
between pistons and
engine block plane Gasket thickness
0.55 to 0.64 mm
(0.0217–0.0252")
1.2 mm (0.0472")
0.65 to 0.75 mm
(0.0255–0.0295")
1.3 mm (0.0512")
21-1 Cylinder Head
56 47701798 05-2013 © AB VOLVO PENTA
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