Torque & Sequence

11 12 8AZ - M10 Cylinder head bolts (N62/N62TU)








Replace cylinder head bolts. Do not wash off coating
Install new cylinder head bolts with washers and initially tighten without play
Jointing torque 30 Nm
Torque angle 90°
Torque angle 90°

11 12 719 - Milling cylinder head sealing face (N62/N62TU)





(cylinder head dismantled)
Check evenness of cylinder head sealing face with a standard straight-edge (1).

Note:
Maximum plane deviation: longitudinal 0.10 mm.





Note:
Maximum plane deviation: transversal 0.05 mm.

- Machining limit





Note:
A cylinder head seal 0.3 mm thicker than usual can be obtained for machined (milled) cylinder heads.

11 61 1AZ Intake manifold on cylinder head
M8 22 Nm
M7 15 Nm
M6 10 Nm

11 31 1AZ - Left inlet camshaft bearing cap nuts (N62 to 09/03)





First pass: Lower bearing bracket (1) from above and carefully bring into contact with cylinder head
Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

Important!
Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.





Fourth pass: Fit bearing cap R E1 in such a way that marking is legible from inlet side
Final pass: Tighten bearing cap R E1 nuts
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 31 1AZ - Right inlet camshaft bearing cap nuts (N62 to 09/03)





First pass: Lower bearing bracket (1) from above and carefully bring into contact with cylinder head
Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

Important!
Do not mix up the camshaft bearing covers of cylinders 1 to 4 and 5 to 8.





Fourth pass: Fit bearing cap L E1 in such a way that marking is legible from inlet side
Final pass: Tighten bearing cap L E1 nuts
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 31 1AZ - Left inlet camshaft bearing cap nuts (N62 from 09/03 and N62TU)





First pass: Lower bearing bracket (1) from above and carefully bring into contact with cylinder head
Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

Important!
Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.





Fourth pass: Fit bearing cap R E1 in such a way that marking is legible from inlet side
Final pass: Tighten bearing cap R E1 nuts
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 31 1AZ Right inlet camshaft bearing cap nuts (N62 from 09/03 and N62TU)





First pass: Lower bearing bracket (1) from above and carefully bring into contact with cylinder head
Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

Important!
Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.





Fourth pass: Fit bearing cap L E1 in such a way that marking is legible from inlet side
Final pass: Tighten bearing cap L E1 nuts
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 31 1AZ Left exhaust camshaft bearing cap nuts (N62/N62TU)





Important!
Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

First pass: Fit bearing caps R A2 to R A5





Note:
Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts on bearing caps R A2 to R A5 in 1/2 turn increments evenly from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm





Important!
Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

Fourth pass: Fit bearing cap R A1 in such a way that marking is legible from inlet side
Final pass: Tighten bearing cap R A1 nuts
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 31 1AZ Right exhaust camshaft bearing cap nuts (N62/N62TU)

Important!
Camshaft bearing caps of cylinders 1 to 4 and 5 to 8 must not be mixed up.

First pass: Fit bearing caps L A2 to L A5





Note:
Retaining clips (1) for oil line are fitted on bearing caps 3 and 5.

Second pass: Insert nuts and tighten by hand without play
Third pass: Tighten down nuts on bearing caps L A2 to L A5 in 1/2 turn increments evenly from inside to outside
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm





Fourth pass: Fit bearing cap L A1 in such a way that marking is legible from inlet side
Final pass: Install nuts and tighten down
M6 10 Nm
M7 14 Nm
M7-8.8 15 Nm
M8 20 Nm

11 36 16AZ Adjustment unit to exhaust or inlet camshaft (N62/N62TU/N73)
M10x1 Replace screws 80 Nm

11 62 1AZ Exhaust manifold (N62/N62TU/N73)