Inspecting The Springs And Half-Cones - MOTO GUZZI V85 E4 Service Station Manual

Engine
Intake valves:
Characteristic
Coupling clearance between valve and guide (WEAR LIMIT)
0.05 mm (0.0020 in)
Valve stem distortion (MEASURED ON 45°)
0.03 mm (0.0012 in)
Valve stem diameter (MINIMUM WEAR VALUE)
5.95 mm (0.2342 in)
Valve head eccentricity (MAXIMUM ALLOWED VALUE)
0.05 mm (0.0020 in)
Outlet valves:
Characteristic
Coupling clearance between valve and guide (WEAR LIMIT)
0.06 mm (0.0024 in)
Valve stem distortion (MEASURED ON 45°)
0.03 mm (0.0012 in)
Valve stem diameter (MINIMUM WEAR VALUE)
5.92 mm (0.2331 in)
Valve head eccentricity (MAXIMUM ALLOWED VALUE)
0.05 mm (0.0020 in)

Inspecting the springs and half-cones

•
Check that the upper spring caps and
the half-cones show no signs of abnor-
mal wear.
•
Check the unloaded spring length.
Characteristic
Spring free length (WEAR LIMIT)
45.9 mm (1.81 in)
ENG - 70
Engine V85 E4