Mitsubishi S4S Service Manual page 108

ENGINE MAIN PARTS
(b) Removing oil seal sleeve
Hold a flat chisel at right angles to the sleeve
and cut the sleeve at three places to loosen it,
as shown in the illustration. If it is impossible
to remove the sleeve in this method, hold the
chisel in the axial direction and lightly tap the
sleeve to loosen it.
,------I&CAUTION
1 - - - - - - - - ,
Be careful not to cause damage to the crankshaft
when removing the sleeve.
Main bearings
(l) Inspecting the main bearing surface
Inspeet each bearing shell for abnormal contact
such as scratching, corrosion, flaking, etc. Also
check for signs of poor seating in the bore of the
crankcase or bearing cap.
(2) Clearance between bearing and joumal
Install the bearings to the crankcase and bearing
cap. Tighten the cap to the specified torque.
Measure the inside diameter of the bearing in two
positions lengthwise and three crosswise as
shown in the illustration to take an average.
Check the clearance between the bearing and
joumal on the basis of this measurement.
Unit: mm [in.]
Item
Assembly Repair
Standard
Limit
Clearance between
0.050 to 0.110
0.200
bearing and journal [0.0020
to
0.0043] [0.0079]
(3) Replacement
If the clearance between the bearing and joumal
exceeds the rep air limit, replace the bearings, or
grind the crankshaft and use undersize bearings.
If the cranks haft is ground, it is necessary to check
the bearing contact.
7-46
Removing oil seal sleeve
Inspecting main bearing surface
98 to 108 Nrn
(10.0 to 11.0 kgf-rn)
[72 to 80 lbf·ft]
Measuring main bearing