Timing Gears; Flywheel - Ezgo 1600xd Repair Manual

3.1.9 TIMING GEARS

1
2
3
5
6
(1) Injection pump gear
(2) Fuel camshaft
(3) Camshaft gear
(4) Camshaft
The crankshaft drives the oil pump and the idle gear en-
gages the fuel camshaft and engine camshaft. The timings
for opening and closing the valve are extremely important
to achieve effective air intake and suffi cient gas exhaust.
The appropriate timing can be obtained when assembling
by aligning the mark on the crankshaft gear either with (6)
the one on the idle gear or (5), the idle gear with camshaft
gear (3), idle gear (5) or with injection pump gear (1).
3
-14
ENGINE - STRUCTURE AND FUNCTION
4
7
196W218B
(5) Idle gear
(6) Crankshaft gear
(7) Crankshaft

3.1.10 FLYWHEEL

3
(1) Ring gear
(2) Flywheel
The fl ywheel is installed on the rear end of the crankshaft
and keeps the fl ywheel turning at a constant speed. While
the crankshaft tends to speed up during the power stroke
it slows down during other strokes. The fl ywheel has a ring
gear (1), which meshes with the drive pinion of the starter.
The fl ywheel has marks "TC" and "FI" on its outer rim. The
mark TC shows the piston's top dead center and the mark
FI shows the fuel injection timing, when they are aligned
with the mark of window on the clutch housing.
• Injection sequence
Three cylinders: 1 → 2 → 3
2
1
196W219C
(3) Crankshaft
SUUV-W00 Apr. 2011