Tightening Specifications

1. Install main bearing caps and lower thrust washers as follows:
(a) Install the two thrust washers on the No. 3 bearing cap with the grooves facing outward.





(b) Install the five main bearing caps in their proper locations.





NOTE:
- Place the bearing caps level and let them return to their original position by their own weight.
- Do not install the main bearing cap by tapping it.
- The main bearing cap nuts are tightened in two progressive steps.
- If any one of the main bearing cap stud nuts is broken or deformed, replace it.

(c) Apply a light coat of engine oil on the threads and under the main bearing cap nuts.





(d) Using sequence shown, install and uniformly tighten the 20 main bearing cap nuts in several passes to 27 Nm (20 ft lbs.).

NOTE: If any one of the main bearing cap nuts does not meet the torque specification, replace the main bearing cap stud bolt.





(e) Mark the front of the main bearing cap nut with paint.
(f) Tighten the main bearing cap nuts by an additional 90° in the numerical order shown.
(g) Check that the painted mark is now at a 90° angle to the front.
(h) Install a new seal washer to the main bearing cap bolts.
(i) Install and uniformly tighten the 10 main bearing cap bolts to 49 Nm (36 ft. lbs.).
(j) Check that the crankshaft turns smoothly.