Connecting Rod Cap Bolt Installation

Check in the following procedure before reusing the connecting rod bolt.
1. Measure the outside diameter "A."
2. Measure the smallest outside diameter "B" within the range "X" shown in the illustration.
3. If the difference of outside diameter of thread exceeds the limit, replace the connecting rod bolt.
  Limit: 0.1 mm (0.004 inch)
  
  Fig 1: Measuring Outside Diameter "A" And Smallest Outside Diameter "B"
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Apply engine oil to the threaded portion and seat surface of the bolt before installing it.
After installing each bolt and tightening it by fingers, tighten bolts alternately to properly assemble the cap.
Tighten the bolt in several steps until the torque reaches 5.0 N.m (44 in-lb).
Tighten the bolt in several steps until the torque reaches 20 N.m (15 ft-lb).
Put a paint mark on the bolt head as illustrated.
Put a paint mark on the connecting rod at 90° position in the tightening direction of the bolt with reference to the paint mark position of the bolt.

Fig 2: Applying Paint Mark On Bolt Head And Paint Mark On Connecting Rod At 90 Degree Position
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION:
- When the tightening angle is smaller than the specified tightening angle, the appropriate tightening capacity cannot be secured.
- When the tightening angle is larger than the specified tightening angle, remove the bolt to start from the beginning again according to the procedure.
Tighten the bolt 90°, and make sure that the paint mark of the connecting rod is aligned with that of the bolt.