"Ga Connecting Rod Cap Nut Installation; Piston Ring - Mitsubishi 4G6 series Workshop Manual

4G6 ENGINE (E - W) -
90_ - 100_
Paint
mark
E
Mitsubishi Motors Corporation

"GA CONNECTING ROD CAP NUT INSTALLATION

Caution
D
(1) Since the connecting rod cap bolts and nuts are torqued
Paint mark
(2) Before installation of each nut, apply engine oil to the
(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
6AE0298
INSPECTION

PISTON RING

(1) Check the piston ring for damage, excessive wear, and
(2) Check for the clearance between the piston ring and
Dec. 1996
Piston and Connecting Rod
If the cylinder head has been installed before installing
the connecting rod cap nut, be sure to remove the
spark plugs.
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
D
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.
D
If the nut is overtightened (exceeding 100_), loosen
the nut completely and then retighten it by
repeating the tightening procedure from step (1).
breakage and replace if defects are evident. If the piston
has been replaced with a new one, the piston rings must
also be replaced with new ones.
ring groove. If the limit is exceeded, replace the ring or
piston, or both.
Standard value: 0.02 - 0.06 mm
Limit: 0.1 mm
PWEE9616
11A-11-7
not be expected. When