New Holland LS140 Workshop Manual page 77

Piston Ring Groove
Using a ring groove cleaner, remove the carbon
deposits from the ring grooves. Be careful to avoid
cutting any metal from either the side or bottom of the
ring grooves.
Inspect the piston ring lands for excessive wear. Use
a new ring, 1, and feeler gauge, 2, to check the ring
side clearance.
Replace pistons having side clearance exceeding
the allowable limits.
Compression Ring
Allowable Limit
0.25 mm
(0.010")
Oil Control Ring
Allowable Limit
0.15 mm
(0.006")
SECTION 10 - ENGINE
S-21741
S-21742
10-42
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