General (650/660); Engine Block; Cylinder Head - Volvo Penta TD420VE Workshop Manual

Technical data: TD/TAD420VE, TAD620VE, TAD650VE, TAD660VE
General
Type designation .................................................... TAD650VE
Rotation direction, facing flywheel: ......................... Counterclockwise
Number of cylinders ............................................... 6
Bore, mm (inch) ..................................................... 101 (3.97")
Stroke, mm (inch) .................................................. 126 (4.96")
3
Displacement, dm (inch
Number of valves ................................................... 12
Compression ratio: ................................................. 18.4:1
Firing sequence ..................................................... 1-5-3-6-2-4
Engine performance at 2300 rpm, kW (hp) ............. 147 (200)
Max torque, Nm (lbf.ft) ........................................... 750 (553)
At speed, rpm ..................................................... 1600
Low idle, rpm .......................................................... 600-800
Max, full load speed, rpm ....................................... 2400
Weight. engine (dry) kg (lb) .................................... 565 (1246)
Weight. engine (wet) kg (lb) .................................... 585 (1290)
1)
See identification plate for correct specification
2) Weight according to DIN 70020-A
3) See "General information, Power standards".

Engine block

Cylinder head

Type ...................................................................... Common cylinder head
Max surface unevenness ....................................... 0.1 mm
Cylinder head bolts
Thread size ............................................................ M 12
Quantity and length:
TD420VE/TAD420VE .......................................... 13 x 108 mm
TD420VE/TAD420VE .......................................... 5 x 178 mm
Quantity and length:
TAD620VE, TAD650/660VE ............................... 19 x 108 mm
TAD620VE, TAD650/660VE ............................... 7 x 178 mm
12
3
) ....................................... 5.7 (347.8)
1, 3)
3)
1)
2)
2)
(0.0039")
(13 x 4.3")
(5 x 7")
(19 x 4.3")
(7 x 7")
Group 20
TAD660VE
Counterclockwise
6
98 (3.85")
126 (4.96")
5.7 (347.8)
12
18.4:1
1-5-3-6-2-4
1, 3)
147 (200)
3)
800 (590)
1600
600-800
2400565
2)
565 (1246)
2)
585 (1290)