Technical Data - Volvo MD2010 Workshop Manual

General
Engine designation
Number of cylinders
Cylinder diameter
Stroke length
Swept volume, total
Power, see sales literature
I dling speed
Deregulation speed/high idling
Compression ratio
Compression pressure with starter motor speed
Firing order (cyl. No. 2 and 3 closest
to flywheel)
Direction of rotation see from front
Max. permissible angle backwards during operation 20°
Max. side angle during operation
Valve clearance, idle cold engine:
i nlet and outlet
Weight, engine without oil and water
Max. permissible counter pressure in exhaust pipe.. 20 kPa
Pistons
Material
Height, total in mm
Height from gudgeon pin centre to piston top in mm
Piston clearance in mm:
Front marking*, MD2010 , MD2020
* The pistons for certain engines also have an arrow in front
of the gudgeon pin hole which should point forwards.
Piston rings
Compression rings:
Number
Top compression ring, height in mm
2nd compression ring, height in mm
Oil ring:
Number
Height in mm

Technical data

2 3
67 mm 67 mm
(2.637 in) (2.637 in)
64 mm 64 mm
(2.519 in) (2.519 in)
0.45 litres 0.68 litres
(27.46 cu.in ) (41.49
850 ±25 rpm 850 ±25 rpm
3900 ±25 rpm 3900 ±25 rpm
23.5:1 23.5:1
>3000 kPa >3000 kPa
(>435 psi) (>435 psi)
1-2 1-2-3
Clockwise Clockwise
20
0
30° 30°
0.20 mm 0.20 mm
(.0078 in) (.0078 in)
98 kg 116 kg
(215.9lb) (255.5lb)
20 kPa
(2.9 psi) (2.9 psi)
M D2020
Aluminium alloy
59.045-59.095
(2.324-2.326 in)
33.045-33.095
(1.300-1.302 in)
0.048-0.082
(.0018-.0032 in)
The arrow alt. "F" mark on piston top should be turned forwards
The "SHIBAURA" mark in the piston should be turned forwards
M D2020
2
1.47-1.49
(0578-.0586 in)
1.47-1.49
(.0578-.0586 in)
1
2.97-2.99
(.01169-1177 in)
M D2040
3 3
75 mm 84 mm
(2.952 in) (3.307 in)
72 mm 90 mm
(2.834 in)
(3.543 in)
0.95 litres 1.50 litres
cu.in ) (57.97 cu.in ) (91.53
850 ±25 rpm 850 ±25 rpm
3900 ±25 rpm 3900 ±25 rpm
23:1 22:1
>3000 kPa >3000 kPa
(>435 psi)
(>435 psi)
1-2-3 1-2-3
Clockwise
Clockwise
20 20°
0
30° 30°
0.20 mm 0.20 mm
(.0078 in) (.0078 in)
129 kg 179 kg
(284.2lb) (394.3 Ib)
20 kPa
20 kPa
(2.9 psi) (2.9 psi)
M D2030 M D2040
Aluminium alloy Aluminium alloy
65.575-65.625 87.66-87.74
(2.581-2.583 in)
(3.451-3.454 in)
35.575-35.625 47.66-47.74
(1.400-1.402 in) (1.876-1.879 in)
0.0425-0.0665 0.038-0.072
(.0016-.0026 in) (.0014-.0028 in)
M D2030 M D2040
2 2
1.47-1.49 1.97-1.99
(.0578-.0586 in) (.0775-.0783 in)
1.97-1.99 1.47-1.49
(.0775-.0783 in) (.0578-.0586 in)
1 1
3.97-3.99 3.90-3.98
(.01562-.1570 in) (.1535-.1566 in)
cu.in )
9