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Technical Data
230, 250, 251DOHC
AQ131, AQ151, AQ171
General
Type designation .................................................................................
Type of engine .....................................................................................
Speed range full load ...........................................................................
Maximum cruising speed ....................................................................
Compression ratio ...............................................................................
Compression pressure at starter motor speed
Number of cylinders ............................................................................
Cylinder bore .......................................................................................
Stroke ..................................................................................................
Swept volume (displacement) .............................................................
Weight, excluding water and oil, approx. .............................................
Idling speed .........................................................................................
General
Type designation .................................................................................
Type of engine .....................................................................................
Speed range full load ...........................................................................
Maximum cruising speed ....................................................................
Compression ratio ...............................................................................
Compression pressure at starter motor speed
Number of cylinders ............................................................................
Bore .....................................................................................................
Stroke ..................................................................................................
Swept volume (displacement) .............................................................
Weight, excluding water and oil, approx. .............................................
Idling speed .........................................................................................
General
Type designation .................................................................................
Type of engine .....................................................................................
Speed range full load ...........................................................................
Maximum cruising speed ....................................................................
Compression ratio ...............................................................................
Compression pressure at starter motor speed
Number of cylinders ............................................................................
Bore .....................................................................................................
Stroke ..................................................................................................
Swept volume (displacement) .............................................................
Weight, excluding water and oil, approx. .............................................
Idling speed .........................................................................................
1)
Applies to hot engine, wide open throttle
12
1. Overhaul Data
1)
..................................
1)
..................................
1)
..................................
230, AQ131
4 stroke, overhead cam
78.3–83.3 r/s (4700–5000 rpm)
3.33 r/s (200 rpm) lower than the max speed obtained
9.7:1
10–12 kp/cm
2
(142–170 psi)
4 in line
96 mm (3.7795")
80 mm (3.1496")
3
3
2.315 dm
(141.3 in
)
240 Kilos (529.1 lbs)
15 r/s (900 rpm)
250, AQ151
4 stroke, overhead cam
80–91.7 r/s (4800–5500 rpm)
3.33 r/s (200 rpm) lower than the max speed obtained
9.7:1
2
10–12 kp/cm
(142–170 psi)
4 in line
96 mm (3.7795")
86 mm (3.3858")
2.49 dm
3
(151.9 in
3
)
250 Kilos (551.2 lbs)
15 r/s (900 rpm)
251DOHC, AQ171
4 stroke, overhead cams
83.3–95 r/s (5000–5700 rpm)
3.33 r/s (200 rpm) lower than the max speed obtained
9.7:1
10–12 kp/cm
2
(142–170 psi)
4 in line
96 mm (3.7795")
86 mm (3.3858")
3
3
2.49 dm
(151.9 in
)
289 Kilos (637.15 lbs)
15 r/s (900 rpm)
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