Items 8-7: Cylinder Head Bolt Installation Note

WARNING: This page is about a different car, the 2004 Mercury Monterey and 2004 Ford Freestar. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: Always use new bolts.

NOTE: Lubricate the bolts with clean engine oil prior to installation.

Fig 1: Installing New Cylinder Head Bolts

Courtesy of FORD MOTOR CO.

Install the new bolts. Make sure the bolts are installed in the correct locations.
1. Install the new long bolts.
2. Install the new short bolts.
Tighten the bolts in the sequence shown in three stages.
- Stage 1: Tighten to 20 Nm (14 lb-ft).
- Stage 2: Tighten to 40 Nm (29 lb-ft).
- Stage 3: Tighten to 50 Nm (36 lb-ft).
Fig 2: Cylinder Head Bolts Tightening Sequence
Courtesy of FORD MOTOR CO.

CAUTION: Each bolt must be loosened and the final tightening carried out prior to working on the next bolt in the sequence. Do not loosen all of the bolts at one time.

Fig 3: Cylinder Head Bolts Tightening Sequence

Courtesy of FORD MOTOR CO.

Carry out the following final tightening process on each bolt in the sequence shown.
- Long bolts:
  - Loosen the long bolt and back out 3 turns.
  - Tighten the long bolt to 40 Nm (30 lb-ft).
  - Tighten the long bolt an additional 180 degrees.
  - Go to the next bolt in sequence.
- Short bolts:
- Loosen the short bolt and back out 3 turns.
- Tighten the short bolt to 25 Nm (18 lb-ft).
- Tighten the short bolt an additional 180 degrees.
- Go to the next bolt in sequence.
Install the exhaust manifold lower studs.

Fig 4: Installing Exhaust Manifold Lower Studs
Courtesy of FORD MOTOR CO.