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ENGINE
20
Engine Repair Data
Fig. 1
B D
C
A
Cylinder Block :
Pressure test cylinder block for leakages of water at a temperature of and at
70
0
to 80
0
C
a pressure of
5 bar
Height of cylinder block dimension ‘A’ and ‘B’. Fig. 1.
290.50-290.40 mm
Permissible maximum machining allowance on cylinder block.
0.2
mm
Permissible unevenness —
In longitudinal direction ‘C’
0.03
mm
In crosswise direction ‘D’. Fig. 1.
0.00
mm
Maximum permissible out of parallels cyl. block upper & lower machined faces
0.2
mm
Parent bore in cyl. block for liner ‘A’. Fig. 2.
100.035/100.000 mm
Liner outer dia
100 095/100 065 mm
Interference between cyl. liner & parent bore in block
0 030-0 095
mm
Liner inner dia
96.150/95.850 mm
Cylinder bore to be finished to size ‘B’
97.000 + 0.01 mm
Maximum permissible taper and ovality of finished bore
0.01
mm
Maximum permissible shift in perpendicularity of cyl. bore from crankshaft axis
0.04
mm
when checked at 200 mm from crankshaft axis.
Surface finish of cylinder bore
0.003-0.005
mm