LONCIN LC2V80FD Maintenance Manual

Part II Repair Instructions
- 12 -
2-3 Maintenance standards
Unspecified unit: mm
Parts Item
LC2V80FD
Standard Maintenance limit
Engine Compression pressure (kgf/cm
2
)*
11-13
－
Air cylinder Inner diameter of cylinder liner 80-80.01 80.15
Piston
Outer diameter of skirt 79.965-79.975 79.755
Clearance to the air cylinder
0.025～0.045
0.255
Inner diameter of piston pin hole
17.002～17.008
17.12
Clearance between the piston pin and
piston pin hole
0.004～0.016
0.029
Piston pin Outer diameter
16.992～16.998
16.9
Piston ring
Clearance to the side of the piston ring
(gas ring 1 / gas ring 2)
0.02～0.06
0.11
Clearance to the side of the piston ring
oil ring
0.03～0.08
0.15
Clearance to the end of the piston ring
gas ring 1
0.20～0.40
0.7
Clearance to the end of the piston ring
gas ring 2
0.30～0.50
0.8
Clearance to the end of the piston ring
oil ring
0.20～0.70
1.0
Width of ring (gas ring 1) 2.90 2.77
Width of ring (gas ring 2) 3.30 3.17
Width of ring (oil ring) 2.60 2.07
Connecting rod
Inner diameter of the small end
17.006～17.017
17.05
Inner diameter of the big end
40.015～40.025
40.065
Oil-film clearance of the big end 0.024-0.059 0.115
Side clearance of the big end
0.203～0.403
1.0
Crankshaft
Outer diameter of the crankshaft journal
(big end of the connecting rod)
39.966～39.991
39.906
Valve
Valve clearance (cold) Inlet 0.10~0.15
－
Valve clearance (cold) Exhaust 0. 15~0.20
－
Outer diameter of valve stem Inlet
6.565～6.58
6.438
Outer diameter of valve stem Exhaust
6.545～6.56
6.435
Valve guide
Inner diameter of valve guide Inlet &
exhaust
6.6～6.615
6.672
Clearance between valve stem and
valve guide Inlet
0.02～0.05
0.15
Clearance between the valve stem and
valve guide Exhaust
0.04～0.07
0.17
Valve seat Contact width of valve seat
0.7～0.8
2.0
Valve spring Free length
39.5～40.5
39
Camshaft
Cam height Inlet
29.95～30.05
29.75
Cam height Exhaust
29.95～30.05
29.75

LONCIN LC2V80FD Specifications

General

Brand	LONCIN
Model	LC2V80FD
Category	Engine
Language	English