34
97.
Fit the main bearing caps. NOTE! The main bear-
ing caps are numbered 1–5 counted from the
transmission end. Oil the screws’ threads. Tighten
with a torque wrench. The tightening torque is
110 Nm (11 kpm), (80 ft.lbf.)
98.
Check the axial clearance which is 0.037–0.147
mm (0.0014–0.0058").
99.
Refit the pistons and the connecting rods so that
the marks on the pistons point forward in the en-
gine when the figure marking on the connecting
rods is turned towards the crankcase’s starboard
side (oil filter side). Fit the lock rings.
100. Fit the piston rings with piston ring pliers. The pis-
ton rings are to be fitted as shown in the picture.
The upper ring is chromium-plated. The lower
compression ring is marked “TOP”. Turn the pis-
ton ring so that the gaps are at an angle of 120°
from each other.
101. Fit the bearing shells in the connecting rods and
the bearing caps. Oil the cylinder liners, pistons
and big end bearings. Check that the markings on
the pistons are directed towards the transmission
cover when the piston is fitted in the cylinder. Use
piston ring compressor.
Summary of Contents for AQ125A
Page 1: ...Workshop Manual Engine Unit AQ125A B AQ145A B C 2 0 ...
Page 2: ......
Page 74: ...7739856 8 English 11 1998 ...