Connecting Rod Bolt

CONNECTING ROD CAP NUT INSTALLATION
1. The connecting rod bolts should be examined before reuse. If the bolt threads are damaged, the bolt should be replaced. Hand-thread the nut to the full length of the bolt threads. If the nut does not run down smoothly, the bolt should be replaced.
2. Before installation of each nut, apply engine oil to the threaded portion and bearing surface of the nut.
3. Loosely tighten each nut to the bolt.
4. Then tighten the nuts alternately to a torque of 34 ± 2 Nm (25 ± 1 ft. lbs.) to install the cap properly.
5. Make a paint mark on the head of each nut.





6. Make a paint mark on the bolt end at the position 90 degree angle (1/4 turn) to 100 degree angle from the paint mark made on the nut in the director of tightening the nut.

CAUTION:
^ If the nut is turned less than 90 degree angle (1/4 turn), proper fastening performance may not be achieved. Be careful to tighten the nut exactly 90 degree angle (1/4 turn).
^ If the nut is overtightened (exceeding 100 degree angle), loosen the nut completely and then retighten fit by repeating the tightening procedure from step 3.

7. Turn the nut further 90 degree angle (1/4 turn) to 100 degree angle and make sure that the paint marks on the nut and bolt are aligned.