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F8QT ENGINE -
Crankshaft and Cylinder Block
11A-23-2
REMOVAL SERVICE POINTS
A
A
"
MAIN BEARING CAP REMOVAL
(1) Remove th e retaining bolts.
NOTE
To remove No. 1 bearing cap (flywheel end) with
screwdrivers, two M7 bolts must be fitted in the bearing
cap and two M7 bolts in the cylinder block.
INSPECTION
CRANKSHAFT
Ovality and taper of main bearing journals and
big-end bearing journals
(1) Replace the crankshaft if the limit value is exceeded.
Out-of-roundness
(1) Support the crankshaft
6
at No. 1 journal and No. 5 journal
and measure the out-of-roundness at No. 3 journal.
Replace the crankshaft if the limit value is exceeded.
NOTE
Turn the crankshaft through one revolution and measure
the relative out-of-roundness of the main bearing journals.
DEFORMATION OF THE CYLINDER BLOCK
(1) Replace the cylinder block if the limit value for deformation
is exceeded.
MAIN BEARINGS
Do not reuse the main bearings
8, 9
if they are badly worn
or otherwise defective.
NOTE
When replacing the bearing, always replace the upper an d
lower bearings as a set.
PWEE9602
E
July 1996Mitsubishi Motors Corporation
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