Assembly/Installation - Triumph Thunderbird Service Manual

4
A
Balancer
Assembly/Installation
Note:
• To ensure a correct relationship, the balancer
shaft must be installed in a specific orientation
relative to the crankshaft.
• Before the balancer shaft is installed, it is
necessary to reposition the backlash gear on
the balancer shaft in relation to the driven
gear. The timing marks on the two gears will
not align once the engine has been rotated
away from its initial timed position.
1. Check that the timing pin T3880039 is still fully
inserted in to the idler gear, and that the crankshaft
to idler gear timing is correct (see page 5-9).
Note:
• Note the orientation of the Belleville washer
before disassembly.
2. Remove the circlip, Belleville washer and thrust
washer from the balancer shaft.
1.
Circlip
2. Belleville washer
3. Thrust washer
4. Backlash gear
3. Rotate the backlash gear until the dot aligns with the
two dots on the balancer shaft driven gear.
1. Backlash gear
2. Backlash gear dot mark
3. Balancer shaft driven gear dot marks
4. Refit the thrust washer, Belleville washer (concave
side facing the balancer shaft) and secure with a new
circlip. Ensure that the circlip is fully seated in the
groove on the balancer shaft.
5. Lubricate the balancer shaft needle roller bearings
with clean engine oil.
6. Position the plain end of the dead shaft in to the
crankcase. Do not fully insert the dead shaft at this
stage.
1. Dead shaft
2. Slotted end
3. Plain end
4. Screw and washer
6.4 SelVice Manual - Thunderbird