Crankshaft - Install; Front Upper Thrust Plate - Install - Mitsubishi S6R Series Service Manual

1.5 Crankshaft - Install

(1) Make sure that the sliding surfaces of the upper main
bearing shells installed in the crankcase are evenly
coated with clean engine oil.
(2) Thoroughly clean the crankshaft with cleaning oil, and
blow off the oil with compressed air. Then, apply an
even coat of clean engine oil to the crankshaft journals.
Note: When cleaning crankshaft, be sure to thoroughly clean
the crank journals, crankpins, and oil holes and make
sure that the crankshaft is free from foreign materilal
such as machining chips and dirt. Make sure that oil
holes are free from burrs.
(3) Lift the crankshaft keeping in a horizontal attitude, and
slowly install into the crankcase.
Note: When lifting the crankshaft, use fiber slings or pads to
avoid any damage to he crankshaft.
(4) Slowly rotate the crankshaft to verify smooth rotation
of the crankshaft.

1.6 Front Upper Thrust Plate - Install

Be careful not to damage the front upper thrust plate
when installing.
(1) Push the installed crankshaft softly toward the engine
front direction to contact the installed rear upper thrust
plate with the crank journal web face.
(2) With the oil grooves on the front upper thrust plate fac-
ing outside, insert the front upper thrust plate into the
clearance between the crankshaft and crankcase.
(3) Move the crankshaft back and forth to verify the proper
end play.
Chapter 7 ASSEMBLY OF BASIC ENGINE
Blow compressed air after cleaning.
Crankshaft - Clean
Crankshaft assembly
Crankshaft - Install
Front Upper Thrust Plate - Install
Apply a small amount
of engine oil to journal
portion after cleaning.
Front upper thrust plate
Insert the plate into
the clearance
between crankshaft
and crankcase
7-5