MOTO GUZZI V10 CENTAURO Werkstatt-Handbuch Seite 85

For a more accurate determination of the TDC it is however necessary to proceed as follows:
place a feeler gauge with support cod. 30 94 82 00 in the spark plug hole of the left cylinder Fig. 11-46 and position
the piston at TDC. Fit the graduated disk cod. 19 92 96 00 on the crankshaft with hub cod. 30 94 96 00 and relative
index cod. 17 94 75 60.
– Turn the crankshaft until the piston is lowered by 3 mm and note the degrees indicated on the graduated disk
index (e.g. 22 degrees).
– Turn the drive shaft in the opposite direction until the piston is lowered by 3 mm and read the number of degrees
on the graduated disk (e.g. 18 degrees).
– The exact position of the TDC is therefore indicated on the graduated disk by the middle between the two
extreme readings and is given by (22°+18°): 2=20°.
Starting therefore from the position of 22° or 18° move the drive shaft forwards or backwards by 20°; in this position
zero the graduated disk holding the crankshaft still.
11-47
1
2
11-48
– With the engine without the rocker arms, fit a feeler
gauge on the left (Induction Control ducket) cylinder
discharge command points using the tool cod. 69
90 78 50 as indicated in the Fig. 11-47.
The upper timing command pulleys must be without
the inner drive gears as indicated in the Fig. 11-47.
The drive belts must be stretched correctly.
– After placing the engine in the TDC position, in the
left cylinder combustion phase, check that reference
«1» - Fig. 11-48 on the service shaft is lined up with
reference «2» - Fig. 11-48 on the timing cover.
22°
20°
Pos. PMS
20°
18°
11-46
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