Dinli DL-801, Руководство по обслуживанию

Страница: 69 / 122

【
6-14
】
ENGINE
CYLINDER/PISTON
SERVICE INFORMATION
GENERAL INSTRUCTIONS
The cylinder and piston can be serviced with the engine
installed in the frame. After disassembly, clean the removed
parts and dry them with compressed air before inspection.
SPECIFICATIONS
Standard (mm) Service Limit (mm)
I.D. ψ
72.70 – 72.715
ψ
72.8
Warpage --- 0.050
Cylindricity --- 0.012
Cylinder
True roundness --- 0.012
Top 0.02 0.09 Ring-to-groove
clearance
Second 0.015 – 0.050 0.09
Top 0.10 – 0.25 0.50
Second 0.15 – 0.30 0.50 Ring end gap
Oil ring 0.25 – 0.7 ---
Piston O.D.
ψ
72.67 – 72.66
ψ
72.60
Piston O.D. measuring position 10.0 ---
Piston-to-cylinder clearance 0.030 – 0.055 0.10
Piston,
piston ring
Piston pin hold I.D.
ψ
17.002 – 17.008
ψ
17.04
Piston pin O.D. ψ
16.995 – 16.990
ψ
17.960
Piston-to-piston pin clearance 0.007 – 0.018 0.025
Connecting rod small end I.D. bore
ψ
17.010 – 17.028
ψ
17.05