56
lock piece groove with a special compression tool. Then put the lock pieces into it and
release the compression tool slowly and remove the tool.
——Put the cylinder head on a wood lump after all lock pieces are assembled. And tap
the small head of the valve stem with a plastic or copper hammer to fit for the valve
mechanism.
6.the sizes for intake valve, intake valve seat, exhaust valve seat and valve guide The size of intake
valve seat and cylinder head valve seat hole
Diameter of
intake valve
seat
Diameter of
the cylinder
head valve
seat hole
Press fit
clearance
Standard 43.877+0.01 44.763+0.025
0.079—0.124
480
-0.01
0
Oversize 44.377+0.01 44.263+0.025
0.5
-0.01
0
Oversize 44.877+0.01 44.763+0.025
1.0
-0.01
0
The size of exhaust valve seat and cylinder head valve seat hole
Diameter of
intake valve
seat
Diameter of
the cylinder
head valve
seat hole
—Press fit
clearance
Standard 38.377+0.01 38.263+0.025
0.079—0.124
480
-0.01
0
Oversize 38.877+0.01 38.763+0.025
0.5
-0.01
0
Oversize 39.377+0.01 39.263+0.025
1.0
-0.01
0
Содержание JNSZ1600DL
Страница 22: ...21 ENGINE CONFIGURATION VIEW AND SECTIONAL VIEW Fig 22 Fig 23...
Страница 111: ...120 Fig 181...