24
COMPILER TECO/ATL
REG. CODE
1-5302-296
MODEL N°
50510
DATE OF ISSUE
01.89
REVISION
02
ENDORSED
DATE
17.04.2003
19
20
21
22
23
VIII
Rocker arm assembly
Components:
1
Bore
2
Lubricatíon tube
Dimensions:
A = 18.032÷18.050
B = 17.989÷18.000
lf (
A-B
) clearance exceeds 0. 135 mm replace pin and rocker arms.
When refitting check that lubrication tube
2
perfectly fits into centering
bore
1
Tighten screws at 2.5 Kgm.
Injector
Clean injector and check calibrated pressure as indicated on page
52. Tighten the fixing nuts at 1 Kgm.
Note
: Extreme care should be taken not to loose ìnjector sealing
gaskets/shims.
New shims of the same thickness should be installed.
Injector projectiion
Check injector projection after removing the cylinder head.
The end of nozzle
A
should project 3.0÷3.5 mm from the cylinder
head liane.
Adjust injector projection by means of copper shims
B
measuríng
0.50 and 1.00 mm in thickness.
Do not demount or remount while hot as this could lead to
deformations.
CYLINDER HEAD
Do not remove it when hot to avoid warpage.
lf cylinder head is warped, level it off by removing a maximum of 0.3
mm. When refitting tighten only if sure that the rocker arm lubrication
tube is weli inside its hole and thal ali three heads are in line; for
proper alignment mount a temporary exhaust or intake manifold.
Always replace copper head gasket; see Page 30 for choosing the
right thickness.
See Page 27 for fitting pushrod tube springs.
Progressively tighten nuts in the
1, 2, 3, 4
sequence at 5.5 Kgm.
DISASSEMBLY/REASSEMBLY
