PIAGGIO PORTER 1.3 16V 2008 User Manual

Valve guide - Valve stem
VALVES
Specification Desc./Quantity
Valve stem diameter (mm): Intake valve: 6.6 -0.020-0.040
Valve stem diameter (mm): Outlet valve: 6.6 -0.025-0.045
Valve length: (mm) Intake valve: 112.8
Valve length: (mm) Outlet valve: 114.5
Valve base thickness: (mm) Intake valve: 0.8
Valve base thickness: (mm) Outlet valve: 1.0
Stem - guide coupling clearance (mm) Intake valve: Standard 0.020 - 0.055
Stem - guide coupling clearance (mm) Maximum limit: 0.080
Stem - guide coupling clearance (mm) Outlet valve: Standard 0.025 - 0.060
Stem - guide coupling clearance (mm) Maximum limit: 0.090
Valve seat angle (°) 45.5°
Tappets
VALVE CLEARANCE
Specification Desc./Quantity
Intake valve clearance (mm) 0.25 ± 0.05 [hot engine]
Outlet valve clearance (mm) 0.33 ± 0.05 [hot engine]
Distribution timing Intake - Open - 1° before TDC
Distribution timing Intake - Closed - 39° after BDC
Distribution timing Outlet - Open - 42° before TDC
Distribution timing Outlet - Closed - 2° after BDC
ROCKING LEVERS AND PINS
Specification
Desc./Quantity
Rocking lever hole diameter (mm) 19.500-19.521
Rocking lever pin outside diameter (mm) 19.468 ÷ 19.488
Rocking lever standard clearance (mm) 0.015 ÷ 0.053
Maximum limit (mm): 0.08
Unloaded width (mm) 22.00
Valve spring
VALVE SPRINGS
Specification
Desc./Quantity
Valve spring unloaded length (marked in ORANGE) 47.4 mm
Valve spring unloaded length (marked in PINK) 45.2 ± 0.5 mm
Valve spring minimum unloaded length (marked in ORANGE) 46.1 mm
Valve spring minimum unloaded length (marked in PINK) 43.9 mm
Valve spring preloading (marked in ORANGE) 208.9 N to 38.0 mm (Standard fitting height)
Valve spring preloading (marked in PINK) 244.9 N to 38.0 mm (Standard fitting height)
Obliquity maximum limit (mm) 1.6
Camshaft
CAMSHAFT
Specification
Desc./Quantity
Camshaft maximum eccentricity 0.03 mm
Camshaft bearing coupling clearance (mm) 0.035 ÷ 0.076
Camshaft bearing maximum coupling clearance (mm) 0.17
Camshaft axial clearance (mm) 0.1 ÷ 0.25
Camshaft maximum axial clearance (mm) 0.45
PORTER 1.3 16V Characteristics
CH - 31

PIAGGIO PORTER 1.3 16V 2008 Specifications

General

Brand	PIAGGIO
Model	PORTER 1.3 16V 2008
Category	Automobile
Language	English