Connecting Rod Cap Installation; Connecting Rod Cap Nut Installation - Mitsubishi 4G9 User Manual

4G9 ENGINE (E–W) – 4G9 ENGINE (E–W) –
Notches
Paint
mark 90_ – 100_
E
E
Mitsubishi Motors Corporation
Mitsubishi Motors Corporation
"FA CONNECTING ROD CAP INSTALLATION
(1) Mate the correct bearing cap with the correct connecting
Cylinder No.
(2) Check if the thrust clearance in the connecting rod big
"GA CONNECTING ROD CAP NUT INSTALLATION
Caution
If the cylinder head has been installed before installing
the connecting rod cap nut, be sure to remove the spark
plugs.
(1) Since the connecting rod cap bolts and nuts are torqued
(2) Before installation of each nut, apply engine oil to the
Paint mark
(3) Install each nut to the bolt and tighten it with fingers.
(4) Tighten the nuts to a torque of 20 Nm.
(5) Make a paint mark on the head of each nut.
(6) Make a paint mark on the bolt end at the position 90_
Bolt
Nut
(7) Give a 90_ to 100_ turn to the nut and make sure that
May 1995
Jun. 2002
Piston and Connecting Rod Piston and Connecting Rod
rod by checking with the alignment marks marked during
disassembly. If a new connecting rod has no alignment
mark, position the notches for locking the bearing on
the same side.
end is correct.
Standard value: 0.10 – 0.25 mm
Limit: 0.4 mm
using the plastic area tightening method, the bolts should
be examined BEFORE reuse. If the bolt threads are
"necked down", the bolt should be replaced.
Necking can be checked by running a nut with fingers
to the full length of the bolt threads. If the nut does not
run down smoothly, the bolt should be replaced.
thread portion and bearing surface of the nut.
Then tighten the nuts alternately to install the cap properly.
to 100_ from the paint mark made on the nut in the direction
of tightening the nut.
the paint mark on the nut and that on the bolt are in
alignment.
Caution
1. If the nut is turned less than 90_, proper fastening
performance may
tightening the nut, therefore, be careful to give
a sufficient turn to it.
2. If the nut is overtightened (exceeding 100_), loosen
the nut completely and then retighten it by
repeating the tightening procedure from step (1).
PWEE9502
PWEE9502-K
11A-11-7
not be expected. When
Revised