Page 332 - Foton Workshop Manual - Sauvana

12B-42 ENGINE MECHANICAL - ENGINE ASSEMBLY

(b). Install the main bearing shell of oil groove
and oil hole to the cylinder block support.
Check whether the oil hole is aligning to
the oil hole of cylinder block, lubricate the
internal surface of main bearing shell by
engine oil.
NOTICE:
• Strictly install the main bearing shell in the
corresponding position when removing.
• When lubricating the bearing shell, the contact
surface of bearing shell and cylinder block can
not be lubricated.
• Ensure that the location tongue of main bearing
shell aligns at the groove-and-tongue on cylinder
block in installation.

(c). Apply a suitable amount of engine oil to
each working surface of crankshaft for
lubrication, gently horizontally put it to the
bearing shell of main shaft.
NOTICE:
Crankshaft can not be turned from installing
crankshaft to the completion of main bearing cap,
to prevent main bearing shell dislocation.

(d). A thrust washer is installed on two sides of
third spindle seat.
NOTICE:
Before installing thrust washer, the surface of
thrust washer which has oil groove shall be
lubricated by engine oil.
WARNING:
The surface of upper thrust washer which has
oil groove shall be installed towards crank arm.
Reverse installation of thrust washer will directly
result in crankshaft and cylinder block scrapping.

Page 332