26
Cylinder head
Ensure that the adjustment drifts are installed
through the camshaft cover into the adjustment hole
in the camshaft. Install the cylinder head in position
over the guide sleeves. Screw in the cylinder head
screws with the long screws located at the cylinder
head ends. Tighten the screws evenly in the order
shown in illustration (A) to a torque of 50 Nm. Tight-
en the screws again, in the same order to a torque
of 100 Nm. Finally tighten the screws a further
quarter turn (90°) in the same order. Install the tool
between the socket and the handle. Apply the stop
against a suitably extended part of the cylinder head
to prevent the protractor turning clockwise. Turn the
indicator so that it corresponds with the 90° marking
on the protractor. Tighten the screw until the indica-
tor points to zero.
If no tool is available make a suitable marking on
each screw flange (C1). Make other markings on
the cylinder head (C2) with 90° clockwise offset in
relation to the markings on the screws. Tighten
each screw in the correct order until the markings
on the screw match the markings on the cylinder
head (C3). The screws do not need to be post tight-
ened with the engine at operating temperature or af-
ter a certain period of operation.
If the original screws have been reinstalled, mark
the top of each screw with a punch mark to indicate
that the screws have been tightened operationally.
A maximum of four punch marks is permitted.
22
Install the heat exchanger / manifold / coolant tank
assembly, operation 20A-10 and install the intake
manifold.
23
Connect the air filter and the exhaust pipe.
24
Install the screws securing the timing cover to the
cylinder head (12A.08/A1) and to the camshaft cov-
er (12A.03/A1).
25
Install the camshaft pulley and the timing belt and
check the belt tension, see section 15.
20
Ensure that the two guide sleeves (12A.08/B1) is in
position in the cylinder block surface and install the
cylinder head gasket without sealing compound.
The gasket can only be installed in one position
over the guide sleeves.
21
Summary of Contents for MD22
Page 1: ...Engine repair MD22 TMD22 TAMD22 Workshop Manual 2 0 A ...
Page 2: ......
Page 129: ...127 Notes ...
Page 130: ...128 Notes ...
Page 132: ...7738684 5 English 04 1999 ...