>> A << Cylinder Head Assembly Installation

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Be careful that no foreign material gets into the cylinder, coolant passages or oil passages. Engine damage may result.

Use a scraper to clean the gasket surface of the cylinder head assembly.
Check in the following procedure before reusing the cylinder head 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 cylinder head bolt.
  Limit: 0.1mm (0.0039 inch)
  
  Fig 1: Identifying Cylinder Head Bolt Diameter Measurement Points
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Tighten the bolts to the specified torque in the order shown in the illustration. (in two or three cycles)
Tightening torque: 45 ± 2 N.m (33 ± 1 ft-lb)

Fig 2: Tightening Cylinder Head Bolts
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
CAUTION:
- If the bolt is turned less than 150 to 154 degrees, proper fastening performance may not be achieved. Be sure to turn the bolt exactly 150 to 154 degrees.
- If the bolt is overtightened, loosen the bolt completely and then retighten it by repeating the tightening procedure from step 1.
Fig 3: Cylinder Head Bolt Tightening Sequence
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Using special tool MB991614, tighten the cylinder head bolt another 150 to 154 degrees.

Fig 4: Tightening Cylinder Head Bolt Using Special Tool MB991614
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.