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Yanmar 4JH4E - Page 178

Yanmar 4JH4E
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4. Disassembly and reassembly
158
Note:
1) The main bearing cap should be mounted
with the arrow on the cap pointing
towards the flywheel.
2) Make sure to have the correct cylinder
alignment number.
2) Measure the crankshaft side clearance.
3) Make sure that the crankshaft rotates
smoothly and easily.
(6) Mounting the oil seal case and the
flywheel housing
1) Replace the used oil seal with new one. Press
fit the oil seal in the oil seal case, and coat the
lip of the oil seal with engine oil.
2) Apply the liquid gasket on the mounting
surface of the oil seal case and mount the oil
seal case to the cylinder block, while
matching up with the cylinder block
positioning pins.
Note:
Be careful that the liquid gasket does not
protrude onto the oil pan mounting surface.
3) Mount the flywheel housing to the cylinder
block, while matching up with the cylinder
block positioning pins.
(7) Turning the engine over
Stand up the engine on the flywheel housing.
mm
Crankshaft side
clearance
Standard Limit
0.140-0.220 0.28
FWFW
Position numbe
r
of reassembling
Mark
010380-00E
977770
-01212
Flywheel housing
Parallel pin
Oil seal
Oil seal case
Cylinder block
010379-00E
010534-00X

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