Yaroslavl Engine Plant YMZ-536, Operation Manual

Page: 100 / 168

100
Fig. 36 Injector installation in the cylinder head:
1
– cylinder head;
2
– injector;
3
– injector union;
4
– injector union sealing ring; 5 – cap screw; 6 – rubber sealing ring
7
– injector sleeve;
8
– sealing washer; 9 – injector fixing bracket;
10
– injector bracket fixing bolt;
11
– spherical washer;
12
– sealing ring;
13
– connecting drain channel
The injector
2
is installed into the cylinder head sleeve
7
and
fixed with a bracket
9
whose bolt is tightened to a certain torque (See
Appendix A “Tightening torques for the main threaded connections”).
A sealing washer
8
is placed under the nozzle nut to prevent gas blow-
by from the cylinder. The injector is centered above the sleeve in the
cylinder head
Ø
28 mm bore. Also located here is the rubber sealing
ring 6.
The fuel is supplied to the injector via the side union
3
which is
installed in the cylinder head below the sealing ring
4
. The injector/
union joint is sealed by means of a conical connection. The injector
2