Toyota 2VZ-FE, 3VZ-E and 5s-FE Connecting Rod Bolt Tightening Procedure - Engine Builder Magazine

Toyota 2VZ-FE, 3VZ-E and 5s-FE Connecting Rod Bolt Tightening Procedure

The bolt has a tendency to rotate slightly inside the rod when performing the final tightening. If not compensated for, this may result in a lower final torque than specified. To achieve
the correct torque use the following procedure. This procedure will ensure that a full 90° degrees of nut rotation relative to the bolt is achieved during the final tightening:

1) Perform the initial torque as specified in the appropriate repair manual.

2) Place two marks ("B" and "C" in Figure 1)
on the end of the connecting rod bolt 90′ apart. Place a third mark
("A" in figure 1) on the nut inline with mark "B" on the rod bolt.

3) Tighten the nut until mark "A" (on the nut) lines up with mark "C" (on the bolt).

Some or all of this information was provided by the Automotive
Parts Remanufacturers Association (APRA). For more information on
technical bulletins available through APRA call 703-968-2772 or visit

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