39
COMPILER TECO/ATL
REG. CODE
1-5302-296
MODEL N°
50510
DATE OF ISSUE
01.89
REVISION
02
ENDORSED
DATE
17.04.2003
88
87
VIII
Valve timing check
Check valve timing at the crankshaft.
The value shown are checked at the flywheel circumference (with
flywheel of 291 mm. diameter each degree corresponds to 2.5 mm).
Set valve clearance at 0.65÷0.70 mm (after checking restore the
value al 0.15÷0.20 mm). Set dial gauge on intake valve to a zero
value; by rotating the driving shaft according to its direction of rotation
you can measure
a
(intake valve opening advance referred to top
dead centre S) and
ß
(intake valve closing delay referred to bottom
(1) dead centre).
Follow the same procedure for exhaust valves checking y (exhaust
valve opening advance) and
8
(exhaust valve closing delay).
ci
= 2°
P
= 34°,
y
= 34°
ò
= 2°
DISASSEMBLY/REASSEMBLY