3.1 Cylinder block
3.1.1 Measuring cylinder liner wear
Procedure
1.
Using a micrometer, set the dial gauge to
zero using a new cylinder liner indicating the
initial dimension of the bore. See Technical
data, Cylinder liners.
2.
Clean the inner surface of the cylinder liner
thoroughly before measurement.
3.
Perform the measurement crosswise at the
top end, lower end and middle of the liner.
4.
Check the gauge reading for maximum wear
and ovalness (compare with rated).
Fig. 1
3.1.2 Removing cylinder liner
Procedure
1.
Mark the cylinder liners, if the cylinder liners
are to be used again.
The cylinder liners must be fitted in the same
position.
2.
Remove the cylinder liners using cylinder
liner puller.
Fig. 2
(1) Cylinder liner puller 9051 73100 Cylinder liner
puller 9104 51500 (84 and 98 engines)
3.1.3 Checking cylinder block
Procedure
1.
Clean the cylinder block and all oil galleries.
2.
Check the cooling channels and remove the scale and sediment to ensure engine cooling.
3.
Check the tightness of the cup plugs and threaded plugs in the cylinder block as well as the condition
of the cylinder block and sealing faces.
4.
Measure the wear of the camshaft bearing points (compare with rated).
NOTE: If it is necessary to machine the upper face of the cylinder block, the pistons must be
shortened by the same dimension. Observe the valve disc spaces on the piston upper face.
3. Maintenance
4th Generation Engines 3-5
8370 79492
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