LS 460 RWD V8-4.6L (1UR-FSE) (2010)
*
Head warpage or cracking could result from removing bolts in an incorrect order.
HINT
Be sure to keep the removed parts separate for each installation position.
(c) Remove the cylinder head and gasket.
Installation
1UR-FSE ENGINE MECHANICAL: CYLINDER HEAD GASKET (for Bank 1): INSTALLATION
1. INSPECT CYLINDER HEAD SET BOLT See: Testing and Inspection/Engine Unit
2. INSPECT CYLINDER HEAD SUB-ASSEMBLY See: Cylinder Head Assembly/Testing and Inspection
3. INSTALL CYLINDER HEAD SUB-ASSEMBLY (for Bank 1)
(a) Check the piston protrusions for each cylinder.
(1) Clean the cylinder block with solvent.
(2) Set the piston of the cylinder to be measured to slightly ATDC.
(b) Place the cylinder head gasket on the cylinder block surface with the front face of the Lot No. stamp upward.
Bank 1
NOTICE:
*
Be careful of the installation direction.
*
Gently place the cylinder head in order not to damage the gasket with the bottom part of the head.
(c) Place the cylinder head on the cylinder block.
NOTICE:
Ensure that no oil is on the mounting surface of the cylinder head.
HINT
The cylinder head bolts are tightened in 3 progressive steps.
(d) Apply a light coat of engine oil to the threads and under the heads of the cylinder head bolts.
(e) Step 1:
(1) Using a 10 mm bi-hexagon wrench, install and uniformly tighten the 10 cylinder head bolts with the plate washers in several steps, in the
sequence shown in the illustration.
Torque : 36 Nm (367 kgf-cm, 27 ft-lbf)