MV Agusta 2008 F4 312RR 1078 Workshop Manual page 22

ITEM
VALVES
B
Ø Sealing external diameter
Exhaust..............................
Inlet....................................
Sealing face thickness......
Stem-guide clearance
Exhaust..............................
Inlet....................................
Ø Guide internal diameter.......
Valve stem
Exhaust..............................
Inlet....................................
Exhaust valve spring
Internal...............................
External..............................
Inlet valve spring
Internal...............................
External..............................
Valve-cam clearance
Exhaust..............................
Inlet....................................
Maintenance
STANDARD
+0,3
24,6 mm
0
+0,3
28,6 mm
0
+0,2
1 mm
-0,3
0,02 ÷ 0,04 mm.........................
0,01 ÷ 0.03 mm.........................
+0
4,5 mm...........................
+0,012
4,475 ± 0,005 mm.....................
4,485 ± 0,005 mm.....................
33,8 mm....................................
37,9 mm....................................
35,28 mm..................................
39,04 mm..................................
0,20 ÷ 0,29
0,15 ÷ 0,24
- 6 -
WEAR LIMIT
Coupling : 0,10 mm
0,08 mm
4,55 mm
4,445 mm
4,455 mm
33,3 mm
37,4 mm
34,78 mm
38,54 mm