Volvo Penta TAD720GE User Manual

Technical Data: TD/TAD520, TAD530/531/532
40
Group 20
Outer diameter Ø (A), standard:
Inlet ................................................................... 49.09
-0.02
mm (1.933"
-0.0008"
)
Exhaust ............................................................. 43.06
-0.02
mm (1.717"
-0.0008"
)
Height (B):
Inlet ................................................................... 7.5
±0.1
mm (0.295"
±0.004"
)
Exhaust ............................................................. 7.9
±0.1
mm (0.311"
±0.004"
)
Valve disc edge:
Inlet, min ............................................................ 2.1 mm (0.0827")
Exhaust, min ...................................................... 1.8 mm (0.0709")
Seat angle, cylinder head:
Inlet ................................................................... 30°
Exhaust ............................................................. 45°
Valve seat width, max:
Inlet ................................................................... 2.8 mm (0.1102")
Exhaust ............................................................. 2.2 mm (0.0866")
Valve clearance:
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)
Valve mechanism
Valves
Disc diameter Ø:
Inlet ................................................................... 48
±0.1
mm (1.8898"
±0.0039"
)
Exhaust ............................................................. 42
±0.1
mm (1.6535"
±0.0039"
)
Stem diameter Ø:
Inlet ................................................................... 8.98
-0.015
mm (0.3535"
-0.0006"
)
Exhaust ............................................................. 8.96
-0.015
mm (0.3528"
-0.0006"
)
Valve seat angle:
Inlet, min ............................................................ 29.5°
Exhaust, min ...................................................... 44.5°
Ø A
B
Valve seats
Min 2.1 mm Min 1.8 mm
45°
30°
29.5°
44.5°

Volvo Penta TAD720GE Specifications

General

Brand	Volvo Penta
Model	TAD720GE
Category	Engine
Language	English