Step 1: Remove the rocker arm covers
Before you begin torquing the cylinder head bolts, you will need to remove the rocker arm covers. To do this, simply loosen the bolts that hold the rocker arm covers in place and remove the covers.
Step 2: Turn the engine to TDC
Next, you will need to turn the engine to Top Dead Center (TDC) on the compression stroke. This can be done by inserting a long screwdriver into the spark plug hole of the #1 cylinder and turning the engine until the piston is at the top of its travel.
Step 3: Tighten the cylinder head bolts in a specific order
The cylinder head bolts should be tightened in a specific order to ensure that the head gasket is evenly compressed and that there are no leaks. The tightening sequence is as follows:
1. Bolt 1
2. Bolt 7
3. Bolt 2
8. Bolt 6
4. Bolt 5
5. Bolt 3
6. Bolt 4
Step 4: Tighten the cylinder head bolts to the specified torque
Use a torque wrench to tighten the cylinder head bolts in the specified order to the following torque:
70-90 ft-lbs (95-122 N-m)
Step 5: Reinstall the rocker arm covers
Once you have tightened the cylinder head bolts, you can reinstall the rocker arm covers. Be sure to use a new gasket between the rocker arm covers and the cylinder head.
Step 6: Recheck the torque on the cylinder head bolts after the engine has run
After the engine has run, it is important to recheck the torque on the cylinder head bolts. This will ensure that the bolts have not loosened and that there are no leaks.
