Cylinder Wear; Cylinder Bore Diameter; Test Positions For Bore Wear Check (Bore Shown In Section) - Triumph Tiger Service Manual

2. Fit the piston onto the connecting rod with the arrow
on the piston crown facing AWAY from the oil hole in
the connecting rod.
3. Align the small. end in the connecting rod with the
gudgeon pin hole in the piston.
4. Lubricate the piston, small end and gudgeon pin
with clean engine oil and fit the gudgeon pin.
5. Fit new circlips on both sides of the gudgeon pin
ensuring the circlips are correctly· fitted in the
grooves.
A
WARNING: Failure to use new gudgeon
pin circlips could allow the pin to detach
from the piston. This could seize the engine and
lead to an accident.
6. The piston ring gaps must be arranged as shown in
the diagram below
3
1
2
4
t
o
1. Top Ring
2. Second Ring.
3. Steel Oil Control Rings
4. Oil Control Ring Expander
NOTE:
•
7.
The top ring gap should be positioned In the 7
o'clock position, the second ring gap in the 1
o'clock position and the steel oil control ring
gaps in the 9 & 3 o'clock positions (one in each
position).
Fit the piston into the liner using a gentle rocking
motion to engage the rings in the bore.
6.21
CRANKSHAFT/RODS/PISTONS 6
Cylinder Wear
Measure the inside diameter of each cylinder using an
internal micrometer or similar accurate measuring
equipment.
Cylinder bore diameter
Standard: 75.985 - 76.003 mm
Service limit: 73.053 mm
1. Check the diameter at points 1, 2 and 3.
3
Jacr
Test Positions For Bore Wear Check
(bore shown in section)
2. If any reading is outside the specified limits, replace
the liner and piston as an assembly.