Piston Wear Check - Triumph 2012 Tiger 800 Service Manual

Crankshaft, Connecting Rods and Pistons

Piston Wear Check

1.
Measure the piston outside d iameter, 8 mm up from
the bottom of the piston and at 90° to the direction
of the gudgeon pin.
cap!
1. Piston outside diameter
2. Measurement point
3. Circlip removal groove
All Cylinders
Service limit
Replace the piston if the measured diameter falls outside
the specified limit.
5.14
73.974 - 73.990 mm
73.930 mm
Service Manual Tiger 800 and Tiger 800XC
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Piston Rings/Ring Grooves
Check the pistons for uneven groove wear by visually
inspecting the ring grooves.
If all the rings do not fit parallel to the groove upper and
lower surfaces, the piston must be replaced.
Clean the piston ring grooves.
Fit the piston rings to the pistons. Check, using feeler
gauges, for the correct clearance between the ring
grooves and the rings. Replace the piston and rings if
outside the specified limit.
capg
Piston Ring to Ring Groove Clearance Check
Piston ring/Groove Clearance
Top ring
Service limit
Second
Service limit
0.020 - 0.060 mm
0.075 m m
0.020 - 0.060 mm
0.075 m m