Yaroslavl ???-236, Maintenance Manual

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1115. Induction manifold
Name of the part or assembly unit Marking
Right induction manifold
Left induction manifold
See the table 9
Material
Hardness
АК7М2Мг
80 НВ, no less
N
um
be
r o
f t
he
d
ef
ect
L
oc
at
ion o
f t
he
p
ic
tu
re
Possible defect
Method
defect detection and means
of control
Dimension and parameter, mm
Conclusion
nominal
maximum allowable
without repair for repair
1
2
3
-
B
-
Cracks and breaks
Deformation of the joining
surfaces of the manifolds to
the cylinder head
Throughout corrosive
damage of the
Inspection.
Inspection. Slab
2-1-
1000х630.
Gauge 0.2 mm
Inspection
Flatness tolerance of the
surfaces B relatively to the
total joining flatness:
0.2
-
-
-
-
-
-
-
To weld
To build up
To process till the elimination
of the defect