Man D 2840 LE 301, Repair Manual

Page: 161 / 194

Limit values
Service Data
Dimensions
159
Cylinder head
12,000 − 12,018 mm Intake valve
12,000 − 12,018 mm Exhaust valve
17,1 − 17,5 mm
Intake valve α = 60
_
Exhaust valve
β
= 45
_
a = 3,3 − 3,8 mm
b = 3,3 − 3,8 mm
Valve guide bore in cylinder head:
18,000
− 18,018 mm
Valve guide outside diameter:
18,028
− 18,046 mm
standard: 113,9 − 114 mm
minimum: 112,9 mm
(observe specified dimensions for valve
recess and injector projection,
see page 160)
Valve seat insert bore in cylinder head:
53,00
−− 53,03 mm
Valve seat insert outside diameter:
53,10
− 53,11 mm
Valve seat insert bore in cylinder head:
61,00
− 61,03 mm
Valve seat insert outside diameter:
61,10
− 61,11 mm
a
b
β
α
Ø
Ø
Ø
Ø