Yamaha MTN1000 2016, Руководство по обслуживанию, Страница: 359 / 658

CONNECTING RODS AND PISTONS
5-76
TIP
• Be sure to reinstall each big end bearing in its
original place.
• Align the projections “a” on the big end bear-
ings with the notches “b” in the connecting rods
and connecting rod caps.
•
Make sure that the projection “c” on the con-
necting rod cap faces the same direction as the
“Y” mark “d” on the connecting rod.
2. Tighten:
•
Connecting rod bolts
NOTICE
ECA18390
Tighten the connecting rod bolts using the
plastic-region tightening angle method. Al-
ways install new bolts.
TIP
Install by carrying out the following procedures in
order to assemble in the most suitable condition.
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a. Replace the connecting rod bolts with new
ones.
b. Clean the connecting rod bolts and lubricate
the bolt threads and seats with molybdenum
disulfide oil.
c. After installing the big end bearing, assemble
the connecting rod and connecting rod cap
without installing them onto the crankshaft.
d. Tighten the connecting rod bolt while check-
ing that the sections shown “a” and “b” are
flush with each other by touching the surface.
TIP
To install the connecting rod cap, care should be
taken not to install it at an angle and the position
should not be out of alignment.
e. Loosen the connecting rod bolt, remove the
connecting rod and connecting rod cap and
install these parts to the crankshaft with the
big end bearing kept in the current condition.
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3. Install:
• Oil ring expander “1”
•
Lower oil ring rail “2”
• Upper oil ring rail “3”
•
2nd ring “4”
• Top ring “5”
(into the piston)
TIP
Be sure to install the piston rings so that the
manufacturer’s marks or numbers “a” face up.
4. Install:
• Piston “1”
(onto the respective connecting rod “2”)
•
Piston pin “3”
•
Piston pin clips “4”
a
b
c
d
New
Connecting rod bolt
30 N·m (3.0 kgf·m, 22 lb·ft)
a. Side machined face
b. Thrusting faces
T
R
.
.
a
b
New