System Specifications

11 12 Cylinder Head
Cylinder head height
Original dimension 112.000 ± 0.050 mm
Machining limit 111.700 ± 0.050 mm

11 12 100 Cylinder Head Bolts
Install new cylinder head bolts.
Please refer to Removing and Installing Cylinder Head (N52K) for cylinder head bolt tightening specifications and procedure. Removal and Replacement

11 61 1AZ Intake Manifold On Cylinder Head
M8 22 Nm
M7 15 Nm
M6 10 Nm

11 31 1AZ Exhaust Camshaft Bearing Cap Bolts (N52K)

ASA screws
(15 x)
Upper and lower bearing banks of exhaust camshaft to cylinder head
N52K M7 X 70
Insert screws dry
Tighten screws from inside outwards
Jointing torque and angle of rotation must be observed without fail
Jointing torque 8 Nm
Torque angle 60°

11 31 2AZ Inlet Camshaft Bearing Cap Bolts (N52K)

ISA screws
(14 x)
Bearing cap of inlet camshaft to cylinder head
N52K M6 x 30.5 9 Nm

11 36 1AZ Variable camshaft control VANOS (N52K)
M10 X 94 Hexagon screws
Replace screws
Jointing torque 20 Nm
Torque angle 180°

11 62 1AZ Exhaust Manifold Nuts
Replace nuts
Coat screw connections with CRC copper paste
M6 10 Nm
M7 15 Nm
M8 23 Nm