Advertisement
Install a dial gauge (A) complete with adapter in
the spark plug orifice of cylinder 1.
While reading the dial gauge (A), turn the
crankshaft to bring cylinder 1 to TDC in the
power stroke.
Install a dial gauge (B), complete with mount, on
one of the intake valves of cylinder 1, keeping
the probe of the dial gauge as perpendicular
as possible with the upper surface of the
bucket tappet.
Rotate the crankshaft while reading the dial
gauge (B) to measure the valve lift, then reset
the dial gauge (B) at TDC.
In this state, the bucket tappets can rotate
freely in their seats.
While reading the dial gauge (B), turn the
crankshaft clockwise by 360° to reach the
valve overlap phase before the camshaft
starts opening the valves.
Check that the dial gauge (B) reads zero.
While reading the dial gauge (A), turn the
crankshaft to TDC of cylinder 1.
Check that both dial gauges (A) and (B) read
zero.
Turn the crankshaft clockwise until dial gauge
(A) reads a value of 4.58 mm (equivalent to
25° after TDC).
Check that the dial gauge (B) reads a value of
0.70 mm ± 0.08 mm.
Rotate the intake camshaft with a wrench to
achieve the correct values indicated.
Immobilise the intake camshaft using a reaction
tool.
Apply engine oil SHELL Helix Ultra SAE 5W-40
to the intake variable valve timing adjuster
(C), on the surface in contact with the
respective fastener screw indicated.
Pre-tighten the indicated screw.
Tightening torque
Screw (pretightening)
Tighten the indicated screw.
Tightening torque
Screw (with 70° angle)
Nm
Class
50 Nm
A
Nm
Class
100 ÷ 140
0
Nm
Advertisement
