6A-98 ENGINE REPAIR
CRANKSHAFT REPAIR
Revision and measurement of crankshaft
Revision
1) Clean thoroughly crankshaft and check carefully there are
no knockings, scratches, signs of gripping or wear.
2) Verify caps of oil tunnels (3) just in case they show rust or
lack of impermeability. If the caps show signs of
abnormalities, replace them and asess impermeability.
Pressure for controlling the crankshaft caps
impermeability: 1,5 Kgxcm
2
NOTE:
If you appreciate in the journal of connecting rods or
main bearings signs of gripping, knockings , scratches
or excessive wear, it will be necessary to carry out an
oversize mechanical rectifying.
1
2
3
4
Crankshaft measurement of the
1) Using a micrometer (1) proceed to measure the journal of
connecting rods (2) and main bearing (4) to determine the
diameter to be reduced.
NOTE:
It is necessary to annotate the results of measurements
in a table as the one herewith to find out the oversize
to apply.
MINIMUM Ø
MAXIMUM Ø
MINIMUM Ø
MAXIMUM Ø
NOMINAL
VALUE
80,182
80,208
NOMINAL
VALUE
86,182
86,208
NOMINAL
VALUE
56,515
56,538
TABLE TO ANNOTATE THE MEASUREMENTS OBTAINED ON THE JOURNAL OF MAIN BEARING
AND CONNECTING ROD
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