Tomei Powered RB26DETT CAM CAP STUDS BOLTS - Manual (Page 7)

NUT TIGHTENING
CAUTION
■ Spread engine oil on the journals & cam before installation. Applying Heatproof Lubricant
■ Do not rotate the Camshaft. It will interfere with the
Valves and Pistons.
■ Apply heatproof lubricant on the nut surface and screw
threads to help prevent drag on the surface when
tightening. This will make it easier to obtain the correct
torque specs.
Start tightening the bolts from the left
side of Cylinder No. 1, at TDC on the
compression stroke. Then follow the
numerical order.
① Tighten slowly with care.
When installing the camshaft, start at the end with the cam lobe facing the buckets. Turn
the nut, half turn each time, before going to the next stud. Do the half turn on each nut in
numerical order as shown in the illustration above, 1-14. You must slowly do up each nut
so that the camshaft evenly sinks into the head as horizontal as possible. Time consuming
as it is, this will prevent the camshaft from breaking (which is a common mistake during
Surface
Thread
FRONT
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as it is, this will prevent the camshaft from breaking (which is a common mistake during
installation).
② Torque the bolts in numerical order.
SPECIFICATIONS
MATERIAL
SIZE
STRENGTH
TREATMENT
WEIGHT
STUD BOLT NUT
Chromoly (SCM435) Chromoly (SCM435)
M6 x 1.0 L58.0 M6 x 1.0
12.9T -
Black Oxidation Black Oxidation
11.3g (Approx) 3.2g (Approx)
Torque Specs 1.0kgm
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