Volvo Penta TAD720GE User Manual

Technical data: TD/TAD420VE, TAD620VE, TAD650VE, TAD660VE
16
Group 20
Valve disc edge:
Inlet, min ............................................................. 1.8 mm (0.071")
Exhaust, min ...................................................... 1.1 mm (0.043")
Seat angle, cylinder head:
Inlet .................................................................... 30°
Exhaust .............................................................. 45°
Valve seat width, max:
Inlet, min ............................................................. 2.7 mm (0.106")
Exhaust, min ....................................................... 2.1 mm (0.083")
Valve mechanism
Valves
Disc diameter Ø:
Inlet .................................................................... 41.7
±0.1
mm (1.642"
±0.004"
)
Exhaust .............................................................. 35.9
±0.1
mm (1.413"
±0.004"
)
Stem diameter Ø:
Inlet .................................................................... 7.98
-0.015
mm (0.3142"
-0.0006"
)
Exhaust .............................................................. 7.96
-0.015
mm (0.3134"
-0.0006"
)
Valve seat angle:
Inlet, min ............................................................. 29.5°
Exhaust, min ....................................................... 44.5°
Min 1.8 mm Min 1.1 mm
45°
30°
29.5°
44.5°
Valve clearance (not apply for TAD660VE)
Inlet .................................................................... 0.35
±0.05
mm (0.014"
±0.002"
)
Exhaust .............................................................. 0.55
±0.05
mm (0.022"
±0.002"
)
Important! Control and adjusting of valve clearance is done with an engine oil
temperature between 20 – 80°C (68 – 176°F)

Volvo Penta TAD720GE Specifications

General

Brand	Volvo Penta
Model	TAD720GE
Category	Engine
Language	English