41
Group 21 Short block
4. Place the thrust washers in the rearmost bearing
cap (flywheel side) with the oil groove towards the
crankshaft.
Torque the bearing caps, please refer to the
“Technical Data” chapter for tightening torque.
5. Carefully lift the crankshaft into position in the cyl-
inder block.
Note. Tape the crankshaft gear before lifting the
crankshaft into place, to prevent the gear teeth from
damaging the front bearing.
6. Torque the main bearing caps in the engine block.
Tightening torque, please refer to the “Technical
Data” chapter.
Mounting pistons in cylinders
Note. After replacing the crankshaft, piston or gud-
geon pin, the weight difference between con rods with
piston and piston rings shall not exceed 10 g between
cylinders.
1. Lubricate the pistons and piston rings with engine
oil beside the rings, so that the oil finds its way
into the piston ring grooves. Turn the piston rings
so that the ring gaps are displaced 90
o
from each
other.
Make sure that no piston ring gap is placed in line
with the gudgeon pin.
2. Place the bearing shells in position in the con
rods and bearing caps. Oil the bearing journals
with engine oil.
7. Check that the end float does not exceed. 0.5 mm
by using a special tool, magnetic stand 999 9696
and dial gauge 998 9876.
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