Volvo B27A Service Manual page 43

Group 21 Reconditioning engine
Assembly
D13
Measure liner height
Measure at three different positions, as shown adja-
cent.
Difference between the three measurements must not
exceed 0.05 mm If greater, check for dirt, etc.
Use the highest measurements for the calculation.
Exar
Diffe
mm
nple: 1st measurement...
2nd measurement ..
3rd measurement...
0 11
0.08
nnq
rence between measurements does not exceed
and highest measurement is 0.11 mm.
mm
mm
mm
0.05
0.16-0.23 mm
Shim
D14
Select correct size shim
Distance between top of liner and block should be
0.16-0.23 mm. Gap should be as near as possible to 0.23
mm.
Select a shim which is the same or just under the cal-
culated thickness.
Shims are available as follows:
Colour Thickness
Blue 0.070-0.105 mm
White 0.085-0.120 mm
Red 0.105-0.140 mm
Yellow 0.130-0.165 mm
Example:
Max. specified gap 0.23 mm
Measured gap (without shim) 0.11 mm
Difference 0.12 mm
Select a white shim.
D15
Install same size shim on all liners
Colour marking should face upwards and be visible
when liner is installed.
The tongues (B) on the inside of the shim should fit into
the groove in the liner (C).
D16
Install liner in block
Observe liner identification marks as applicable.
41