Fuel Injector
Maintenance / Disassembly and reassembly
A5.05. 07.07.01.00
M20
en / 06.06.2000 IB022247 2/3
07
Ĺ
1.6 Screw extractor (Fig. 2/W1) onto adju-
sting screw (13) of the nozzle holder
(14). Turn up nozzle holder from the
seat against the flange (12).
1.7 Pull fuel injector at eye bolt (W1) out of
the cylinder head.
1.8 Remove the soft iron sealing ring (17).
Clean bore and nozzle seat (16) in the
cylinder head.
1.9 Clean the outside of the fuel injector
and carry out function check of the
injection nozzle (07.08.01 nn).
1.10 Renew the soft iron sealing ring (17)
and all of the O-rings (18).
Attention:
Only use original MaK spare parts.
2. Reassembly
2.1 Apply a thin film of Molykote paste on
the threads of gudgeons (Fig. 2/11),
O-rings.
Excessive paste has to be removed!
Through excessive paste there is the
risk of squeezing of the O-rings in the
locking groove in the cylinder head!
Grease the soft sealing ring (17) and
nozzle (16) with high temperature
thread paste to avoid sticking due to
heat.
2.2 Insert injection carefully valve into cy-
linder head. Attach flange (Fig. 2/12)
and tighten nuts (15) with torque
M = 30 Nm.
2.3 Slacken nuts (15) again by one turn.
2.4 Push in the radial thrust piece (Fig. 1/5).
2.5 Fit the transverse thrust piece (3).
Fig. 2
16
17
14
18
12
13
11
W1
Fig. 3
15
16
11
17
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