MOTO GUZZI Daytona RS Workshop Manual page 60

CHECK SPRING PACK (Fig. 10-55)
When the valve seats on the heads have been milled it is necessary, after fitting the valves on the heads, to check
that the springs are compressed between 34,7÷35 mm; to obtain this value insert «A» washers cod. 14 03 73
00 of thicknesses 0.3 mm.
TIMING DATA
The timing data (referring to the control clearance of
1,5 mm between rocker arms and valves) are as
follows (see Fig. 10-56):
Intake:
■ open 22° before TDC (top dead center)
■ close 54° after BDC (bottom dead center)
Exhaust:
■ open 52° before BDC
■ close 24° after TDC
■ intake 0.10 mm (USA version: mm 0,05)
■ exhaust 0.15 mm (USA version: mm 0,05)
DIAMETER OF CAMSHAFT BEARINGS AND THEIR HOUSINGS IN CRANKCASE
Timing side
Drive side
TAPPET-GUIDE IN CRANKCASE - COUPLING DATA
Original
O/S on dia. mm 0,05
O/S on dia. mm 0,10
58
A
Ø CAMSHAFT JOURNAL
mm
47,000 ÷ 46,984
32,000 ÷ 31,984
I/D OF GUIDE HOUSING
mm
22,021 ÷ 22,000
22,071 ÷ 22,050
22,121 ÷ 22,100
T.D.C.
END OF
DISCHARGE
AFTER T.D.C.
D I S C H A R G E
START
BEFORE
B.D.C.
B.D.C.
Ø HOUSING IN CRANKCASE
mm
47,025 ÷ 47,050
32,025 ÷ 32,050
O/D OF TAPPETS
mm
21,996 ÷ 21,978
22,046 ÷ 22,028
22,096 ÷ 22,078
10-55
INTAKE START BEFORE
T.D.C.
INTAKE END
AFTER B.D.C.
10-56
FITTING CLEARANCE
mm
0,025 ÷ 0,066
FITTING CLEARANCE
mm
0,004 ÷ 0,043
0,004 ÷ 0,043
0,004 ÷ 0,043