Removal; Inspection - Triumph DAYTONA 675 Service Manual

Balancer
The balancer is fitted to control 'pulsing within the engine.
Without any form of balancer, the engine would 'pulse'
each time the crankshaft rotated. This 'pulsing' would be
felt as a vibration which would amplify as the engine
speed was increased.
The balancer has the effect of a pair of counterbalance
weights which create an equal amount of energy in the
opposite direction, and at the same time as that produced
by the crankshaft, pistons and connecting rods. Because
the opposing pulses occur at the same point of crankshaft
rotation, and are of an equal magnitude, a state of
equilibrium or balance is reached.

Removal

1. Separate the crankcase halves (see page 5-4).
2. With the crankcase halves separated, lift out the
balancer shaft complete with the shaft bearings/
circlips.
Note:
• As the shaft is released from the crankcase,
the backlash eliminator gear will spring out
of alignment with the crankshaft.
3. To remove the left hand bearing, slide the bearing,
circlip and bearing sleeve from the balancer shaft.
Note the orientation of the bearing prior to removal.
4. To remove the right hand bearing, remove the circlip
and washer, and, using a press and press bars
remove the bearing race from the shaft, ensuring the
inner bearing race is supported. Note the orientation
of the bearing prior to removal. DO NOT remove
the drive gear from the shaft.
Warning
When using a press, always wear overalls, eye face and
hand protection. Objects such as bearings frequently
break-up under load and the debris caused during
break-up may cause damage and injury to unprotected
parts of the body.
Never wear loose clothing, which could become trapped
in the press and cause crushing injury to the hand, arms
or other parts of the anatomy.
A
Caution
Do not remove the drive gear from the balancer shaft.
The drive gear is aligned to the shaft. If the balancer and
drive gear are not correctly aligned, severe engine
vibration will occur leading to damage to components.
Service Manual - Daytona 675, Street Triple and Street Triple R
IIiMP
5. To strip the backlash eliminator from the drive gear,
release the circlip and remove the wave-washer,
backlash gear and spring.
r .r.
1. Balancer shaft
2. Wave washer
3. Circlip

Inspection

1. Inspect all gears for chipped or missing teeth.
2. Inspect all bearings for signs of overheating (blue
discolouration), seized or damaged rollers, and any
other damage.
3.
Inspect the backlash spring for deformities, damage
etc.
4. Inspect the gear teeth for overheating (blue
discolouration).
Balancer
3
2
6.3