Tomei Powered 4G63 HEAD STUD BOLTS - Manual (Page 7)

4．NUT TIGHTENING
CAUTION
■Use the Angle Wrench on required bolts & nuts.
■The heat proof lubricatant helps with preventing
drag on the bearing surface during tightening so
the correct tightening torque can be obtained.
You can also use the WAKOS Thread Compound or Similar.
■Try not to mark, scratch or damage the meting face
of the seat surface or the metal gasket.
■Thoroughly clean the cylinder block and heads surface
to remove any signs of water, oil residue and unwanted
foreign material before installing the gasket.
Give all the galleries and passageways a spray of high pressure air as well to remove any loose particles.
■Do not use molybdenum grease as it changes the pretension. The original tightening torque will change.
4．SPECIFICATIONS
BOLT NUT WASHER
MATERIAL SNCM439 SCM435 SCM435
SIZE BOLT M11×P1.25 M11×P1.5 M12
NUT M11×P1.5 （14㎜ TOOL）
STD STRENGTH 155kg/m㎡ - -
WEIGHT 75ｇ 18ｇ 6g
PART NUMBER 191081 191087 191085
7
【Apply Heat Resistant Lubrication Paste】
Nut Face
Washer
Face both
Screw
Thread
Top
⑧ ⑥ ① ③ ⑨
⑩ ④ ② ⑤ ⑦
To be done up in numerical order as shown on the left.
(1) 1st Time in sequence: Torque 78.5N·m (8kgm)
(2) Then completely loosen them to 0 N·m. and re-tighten.
(3) 1st Time in sequence: 29.4N·m (3kgm) with torque
wrench.
(4) 2nd Time in sequence: 100°～110°with angle
wrench.