Dinli DL702, Руководство по обслуживанию

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6-21
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ENGINE
PISTON
Piston Diameter
● Check for ware and damage on the sliding surface.
● Measure OD of Piston at the position shown in the picture. If the
measurement is less than the limit, replace the piston.
Piston OD
Service limit 101.880 mm
Piston Rings
Clearance between Piston Ring and groove
● Measure the clearance between Piston Ring and groove, by holding
the Ring upwards in the groove, with thickness gauge.
● If any of the clearances exceeds the limit, replace both piston and
piston rings.
Service Limit of clearance
Top 0.180 mm
Second 0.150 mm
Piton ring groove width
Standard
Top 1.21~1.23 mm
Second 1.21~1.23 mm
Oil 2.01~2.03 mm
Piton ring thickness
Standard
Top 1.17~1.19 mm
Second 1.17~1.19 mm
Piston Ring gap (Opening)
● Insert Piston Ring into the lower portion of Cylinder horizontally
by using Piston.
● Measure the Piston Ring gap (opening) with thickness gauge.
Service Limit of Piston Ring gap(Opening)
Top ring 0.50 mm
Second ring 0.50 mm