38
COMPILER TECO/ATL
REG. CODE
1-5302-296
MODEL N°
50510
DATE OF ISSUE
01.89
REVISION 02
ENDORSED
DATE
17.04.2003
85
86
84
83
VIII
Intake/exhaust cam height
A1= 1st cylinder intake cam
S1 = 1st cylinder exhaust cam
A2 = 2nd cylinder intake cam
S2 = 2nd cylinder exhaust cam
A3 = 3rd cylinder intake cam
S3 = 3rd cylinder exhaust cam
H = 33.950÷34.050
Exhaust and intake cams feature the same height H. Replace
camshaft if H is 0.1 mm below the given value.
Note: Engine 11 LD626-3, in the slow speed version (1500÷2000
r.p.m.) features a camshaft with H = 33.765÷33.865 mm.
Camshaft end play
Check camshaft end play after removing cylinder head, injection
pump and fuel feed pump from the engine.
Check that the three cover 1 screws are tightened at 2.5 Kgm.
Place the dial gauge on the camshaft gear outer part; push and pull
same gear as required.
Camshaft end play should be 0.15÷0.30 mm.
Camshaft timing
Fit camshaft gear by making timing mark 2 coincide with timing
marks 1.
Tighten camshaft bolt at 25 Kgm.
Valve timing without considering timing marks
Locate piston 1 (on flywheeI side) at the top dead center. Position
two small cylinders A of the same height onto the tappets.
Rotate camshaft stopping when cylinder 1 tappets are in overlap
position (intake open, exhaust closed).
By means of ruler B check that tappets are at the same height.
DISASSEMBLY/REASSEMBLY
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