Crankshaft Assembly; Crankshaft Installation - TGB EST 1000 Service Manual

5-3. ENGINE BOTTOM END

Crankshaft Assembly

▪ For assembly, reverse the disassembly
procedure. Pay attention to following details.
▪ Put plain bearings correctly in place and clean
the split surface on both sides (cracked area)
carefully with compressed air.
NOTE: Oil the plain bearing surface of the
connecting rod and crank pin before installation.
▪ Oil NEW connecting rod bolts.
NOTICE: Always use NEW connecting rod bolts
at final assembly. They are not reusable.
▪
Thread bolts in the connecting
tighten bolts in the following sequence:
1. Tighten to 1/2 of specified torque.
2. Tighten to 30 NM+/- 2 NM.
3. Torque by an additional 90 +/- 5° turn using
an angle torque wrench.
NOTE: Do not apply any thread locker.
NOTICE: Failure to strictly follow this procedure
may cause bolts to loosen and lead to severe
engine damage.

Crankshaft Installation

▪ For installation, reverse the removal
procedure.
▪ Pay attention to the following details.
▪ Do not mix up the connecting rods of each
cylinder during installation.
NOTICE: Observe the correct installation
position when fitting the crankshaft with the
connecting rods. The connecting rod ACG side
has to face rear cylinder.
5-3-14
,
rods