Scania DC11 - Reconditioning

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©
Scania CV AB 2011, Sweden
01:03-02
Cylinder block
Reconditioning
Heat arising from the main bearings seizing and
rotating in the cylinder block will change the
properties of the material in the cylinder block.
Such cylinder blocks must be discarded.
If the main bearing seizes but does not rotate in
the cylinder block, the cylinder block can be
reconditioned. The main bearing seats must
comply with the demands on roundness given in
the table. Machining out-of-round main bearing
seats is something we do not recommend.
Tightening torques
1 Measure the diameter at four different
positions as illustrated. The diameter must
be measured with the main bearing caps
tightened and without main bearings.
2 Compare the dimensions with those in the
table.
Main bearing cap Torx bolt 110 Nm +
90°
Main bearing cap hexagon bolt 50 Nm + 90°
Minimum permitted
diameter
Maximum permitted
diameter
Greatest permitted difference between
the largest and smallest diameter on the
same main bearing seat.
112.200 mm 112.222 mm 0.016 mm
Cylinder block
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