Tightening Torques & Sequences

Intake Manifold (Lower)





Tighten in numerical order as shown in the figure.

NOTE: No. 7 and 8 have longer bolt length than others.

Intake Manifold (Upper)





Tighten in numerical order as shown in the figure.

NOTE: No. 4 to 7 have longer bolt length than others.

Exhaust Manifold





^ Install exhaust manifold and three way catalyst in numerical order shown in the figure.
^ Tighten nuts No. 1 to No. 4 in two steps. Order No. 9 to 12 shows second step.

Cylinder Head Bolts





Install cylinder head follow the steps to tighten cylinder head bolts in numerical order as shown in the figure with the cylinder head bolt wrench (commercial service tool: J-24239-01).

CAUTION:
If cylinder head bolts are re-used, check their outer diameters before installation. Refer to "Cylinder Head Bolts Outer Diameter".

Apply new engine oil to threads and seating surface of cylinder head bolts.
Tighten all cylinder head bolts.
Tightening Torque 98.1 Nm (10 kg-m, 72 ft. lbs.)
Completely loosen all cylinder head bolts.
Tightening Torque 0 Nm (0 kg-m, 0 ft. lbs.)

CAUTION: In step "c", loosen cylinder head bolts in the reverse order of that indicated in the figure.

Tighten all cylinder head bolts.
Tightening Torque 44.1 Nm (4.5 kg-m, 33 ft. lbs.)





Turn all cylinder head bolts 60 degrees clockwise. (Angle tightening)

CAUTION: Check the tightening angle by using angle wrench (SST). Avoid judgment by visual inspection without SST.

Check tightening angle indicated on angle wrench indicator plate.
Turn all cylinder head bolts 60 degrees clockwise again. (Angle tightening)
GInstall in the reverse order of removal.