Ring/Piston Groove Clearance - BOMBARDIER ski-doo Tundra Scandic 2004 Series Shop Manual

Section 04 ENGINE
Subsection 05 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
1. Use the micrometer to set the cylinder bore gauge
2. Dial bore gauge
1. Indicator set to 0 (zero)
Position the dial bore gauge at 16 mm (5/8 in) be-
low cylinder top edge.
A
F01D0KA
1. Measuring perpendicularly (90°) to piston pin axis
A. 16 mm (5/8 in)
04-05-8
Read the measurement on the cylinder bore gauge.
The result is the exact piston/cylinder wall clear-
ance. If clearance exceeds specified tolerance, re-
place cylinder or rebore. Refer to TECHNICAL DATA.
NOTE: Make sure the cylinder bore gauge indica-
tor is set exactly at the same position as with the
micrometer, otherwise the reading will be false.
RING/PISTON GROOVE
CLEARANCE
Using a feeler gauge check clearance between up-
per compression ring and groove. Replace piston
if clearance exceeds specified tolerance. Refer to
TECHNICAL DATA.
1
A01C0PA
MMR2004-114_04_05A.FM