Engines With Hydraulic Tappets; Engines With Mechanical Tappets - Kohler LAMBARDDINI LDW 1503 Workshop Manual

Legend
S = piston at top dead centre
l = piston at bottom dead centre
a = intake valve open
β = intake valve closed
γ = exhaust valve open
δ = exhaust valve closed
116

Engines with hydraulic tappets

r.p.m.
under
2400 r.p.m.
upper
2400 r.p.m.
under/upper
2400 r.p.m.
Workshop Manual LDW CHD _ cod.
Timing belt operating angles (with valve clearance set to zero)
Engine type
1503_1603_2004_2204
1503_1603_2004_2204
2004/T_2204/T
ED0053031210 - 1° ed_rev. 00
Disassembly / Reassembly

Engines with mechanical tappets

Timing angles for checking puposes
(valve clearance = 2 mm)
a
= 14° after S (corresponding to 35 mm on the flywheel)
β
= 6° after I (corresponding to 15 mm on the flywheel)
γ
= 17° before I (corresponding to 43 mm on the flywheel)
δ
= 15° before S (corresponding to 38 mm on the flywheel)
Timing angles for operating purposes
(valve clearance 0.15 mm)
a
= 14° before S (corresponding to 35 mm on the flywheel)
β
= 34° after I (corresponding to 85 mm on the flywheel)
γ
= 46° before I (corresponding to115 mm on the flywheel)
δ
= 14° after S (corresponding to 35 mm on the flywheel)
Timing angles for checking purposes LDW 2004/T
(valve clearance 2 mm)
a
= 15° after S (corresponding to 38 mm on the flywheel)
β
= 21° after I (corresponding to 52 mm on the flywheel)
γ
= 31° before I (corresponding to 77 mm on the flywheel)
δ
= 13° before S (corresponding to 32 mm on the flywheel)
Timing angles for operating purposes LDW 2004/T (valve
clearance 0.15 mm)
a
= 12° before S (corresponding to 30 mm on the flywheel)
β
= 48° after I (corresponding to 120 mm on the flywheel)
γ
= 58° before I (corresponding to 145 mm on the flywheel)
δ
= 14° after S (corresponding to 35 mm on the flywheel)
Intake
a = 8° before S
β = 28° after I
a = 12° before S
β = 36° after I
a = 12° before S
β = 48° after I
Exhaust
γ = 36° before I
δ = 8° after S
γ = 48° before I
δ = 12° after S
γ = 58° before I
δ = 14° after S
4
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