ENGINE
EA330-E4, WSM
1-S33
Balancer Gear and Balancer
• Before disassembling, check the backlash of the balancer
gears 1 (2) and 2 (1). Also check it during reassembly.
1. From the inside of the cylinder block place a brass rod against
the end of the balancer and tap it off to the gear case side with
a hammer.
(When reassembling)
• If the piston and the connecting rod have been removed, it is
easier to reassemble the connecting rod cap first, and then
proceed to the balancer gear reassembly.
• Align the alignment marks of the balancer gears 1 (2) and 2
(1).
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Reassembling Procedure of Gears
1. Set the crankshaft so the crank pin comes directly to the left side
as viewed from the gear.
2. Align the alignment marks of balancer gear 2 (3) and balancer
gear 1 (5).
3. Turn the balancer gear by 3.14 rad (180 °) to the position as
shown in the figure.
4. Align the alignment marks of the crank gear (2), cam gear (1)
and balancer gear 3 (4), and reassemble the idle gear (6), (7).
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Governor Lever
1. Detach the governor spring (3) and spring (4) from the governor
lever (1).
2. Remove the screw (2) and pull out the governor lever shaft
toward the breather side.
3. Remove the governor lever.
• Do not lose the ball onto the governor shaft in the process.
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Breather
1. Remove the breather mounting screw (1) to remove the
breather assembly.
(When reassembling)
• Install the breather assembly with the valve hole (3) in the
opposite side of the oil escape groove (2).
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(1) Balancer Gear 2 (2) Balancer Gear 1
(1) Cam Gear
(2) Crank Gear
(3) Balancer Gear 2
(4) Balancer Gear 3
(5) Balancer Gear 1
(6) Idle Gear (45T)
(7) Idle Gear (21T)
(1) Governor Lever
(2) Screw
(3) Governor Spring
(4) Idling Spring
(1) Mounting Screw
(2) Oil Escape Groove
(3) Valve Hole
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