Tomei Powered RB26DETT HEAD STUD BOLTS - Manual (Page 8)

8
STUD BOLT INSTALLATION
CAUTION
■ Use a tap tool to clear and correct all threads, this will ensure correct clamp force of the bolt with
the Block.
■ Thoroughly clean all stud bolt threads and screw holes. Apply Thread Lock Paste on the Stud Bolt
threads.
■ Be careful when removing the nuts after torquing the stud bolts to the stipulated toque specifications.
If the bolt moves, the whole process will have to be repeated.
■ The Stud Bolt will need to be done up correctly to the stipulated torque requirements. If not, the
Cylinder Block can change and cause the Block to distort. The correct Torque values must be used,
to ensure that the Bolts can function correctly.
■ A 16mm tool is required to remove the nuts.
Use the double nut ① Use the nuts (supplied with this kit)
method with the as the double nut method for installing
supplied nuts. the nuts.
② Use a Torque Wrech to torque to the specs below.
STUD BOLT
Apply Thread Lock
Paste
③ Remove the double nuts.
NUT TIGHTENING
CAUTION
■ The Angle Wrench must be used as specified. Applying Heatproof Lubricant
■ The Heat Proof Lubricant helps with preventing drag on
Nut surface during tightening, so that the stipulated
torque values can be obtained.
■ Try not to mark, scratch or damage the mating face of
the seat surface & the bore grommet of the Metal Gasket during installation.
■ Thoroughly clean the Cylinder Block and Heads surface, to remove any signs of water, oil residue &
unwanted foreign material before installing the Gasket. Give all galleries and passageways a good
spray of high pressure air, to remove any loose unwanted particles.
To be done up in numerical order, as shown
on the left.
① 1st time, torque in sequence 29.4 N・m (3kgm)
with a torque wrench.
② 2nd time, torque in sequence 107.8N・m (11kgm)
with a torque wrench.
③ Losen until the torque reading is 0N･m
with a torque wrench.
④ 1st time, torque in sequence 29.4N・m (3kgm)
with a torque wrench.
⑤ 2nd time, torque in sequence 85°～90°
with an Angle Wrench.
Torque Specs 24.5～29.4N・m
(2.5kgm～3.0kgm)
The bolt must not move when
removing the 2 nuts. If the bolt
moves, the process will have to
be repeated.
Surface
Thread
FRONT
⑮
⑫ ⑧ ④ ② ⑥ ⑩ ⑭
⑰
⑯
⑬ ⑨ ⑤ ① ③ ⑦ ⑪