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41
KD 702_1003_1404 Workshop Manual_cod. ED0053029340_1° ed_
Disassembly / Reassembly
Valve
timing - Angles
The angle values are determined by turning the driving shaft
clockwise.
S = Piston at top dead centre
I = Piston at bottom dead centre
a
= Intake valve open
β
= Intake valve closed
γ
= Exhaust valve open
δ
= Exhaust valve closed
Timing angles for operating purposes
(valve clearance = 0.25 mm)
a
= 16° before S
β
= 36° after I
γ
= 36° before I
δ
= 16° after S
Timing angles for checking puposes
(valve clearance = 2 mm)
a
= 21° after S
β
= closes in I
γ
= 2° after I
δ
= 20° before S
6
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