D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
65
Printed in Jan. 2001 PS-MMA0415-E1A
Standard Limit
φ111 ∼ φ111.022 mm φ111.122 mm
z The clearance is computed by
subtracting the piston outside
diameter from the cylinder liner inside
diameter. Replace either piston or
cylinder liner, whichever damaged
more, if the clearance is beyond the
specified limit.
Clearance between piston and liner
Standard
0.103 ∼ 0.139 mm
(3) Piston rings
1) Visual check
Replace the piston rings with new ones
if detected worn or broken when the
engine is overhauled.
2) Piston ring gap
z Insert the piston ring into the upper
portion of the cylinder liner bore so
that it is held at a right angle to the
cylinder liner wall.
z Measure the piston ring gap with a
feeler gauge.
Standard Limit
Top ring
0.40 ∼ 0.60 mm
1.5 mm
2nd ring
0.40 ∼ 0.60 mm
1.5 mm
Oil ring
0.30 ∼ 0.50 mm
1.5 mm
z Replace piston rings with new ones if
the gap is beyond the limit
feeler gauge
M1104
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