62
SC213 Diesel Engines
REASSEMBLY
1. Ensure that no blockage in oil-ways.
2. Clean block main bearing housing and place half
bearing in position.
3. Spray oil on the bearing and Place crankshaft in
position.
4. Lightly smear the two upper thrust washers with
lubricating oil and slide in to the recesses provided
on either side of the centre main bearing housing,
with the steel side or plain surface of the washers
towards the housing.
5. Ensure the dowels are fitted properly in the rear
main bearing cap.
6. When replacing the main bearing caps, ensure that
they are fitted in their respective positions. Each cap
is marked with cylinder number and when fitted,
this number shoud be in order. Main bearing notch
will be in opposite direction when cap is correctly
fitted.
7. Apply oil to the main bearings before fitment of
crankshaft and also on crankshaft journals after
placing crankshaft on main bearings.
Measuring Oil Clearance
Check the oil clearance by measuring the outside diameter
of the crankshaft journal as well as the inside diameter of
the bearings in position on the cylinder block. The clearance
can be obtained by calculating the difference between the
measured diameters.
Running clearance:0.04 / 0.08 mm (0.0015/ 0.0031 in.)
Fig: N.5
Fig: N.6
Fig: N.7
Fig: N.8
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