Petter AC1W - Page 5

4
technical data AB1W
Bore (nominal)............................................ 3in (76.2mm)
Stroke ........................................................ 2. 25in (57.15mm)
Power and speed (BS continuous rating):
2.4 bhp at 1500 rev/min
3.0 bhp at 1800 rev/min
3.5 bhp at 2100 rev/min
4.2 bhp at 2500 rev/min
5.0 bhp at 3000 rev/min
5.5 bhp at 3600 rev/min
Cubic capacity ......................................... 159 in
3
(261 cm
3
)
Compression ratio...................................... 16.25 to 1
Lubricating oil pressure (min )................... 35 lbt/in
2
(2.46 kgf/cm
2
)
Fuel injection release pressure................. 2350/2650lbf/in
2
(165.2/186.3kgf/cm
2
)
Fuel injection timing (by spill):
Fixed speed
Up to 2200 rev/min........................... 23° before TDC
2201 to 2700 rev/min....................... 26° bef ore TDC
2701 to 3300 rev min....................... 29° bef ore TDC
3301 to 3600 rev min....................... 34° bef ore TDC
Variable speed ........................…. 29° before TDC
Inlet valve opens .....................................13° before TDC
Inlet valve closes .................................... 38° after BDC
Exhaust valve opens .............................. 38° before BDC
Exhaust valve closes.............................. 13° after TDC
Reduction gear ratio............................... 6:1
Fuel tank capacity (engine mounted)........ 9 pints (5.13 litres)
Oil capacity ........................................... 31/4 pints (1.9 litres)
Lubricating oil............................................. See approved list
Fuel.............................................................. A high-grade light distillate diesel fuel
in accordance with B.S. Specification
No 2869 1967 Class A1 or A2
Water capacity: Temperate Tropical
Cooling tank. ................................ 48 gal (218 litres) 120 gal (545 litres)
'Run through' water per bhph......... 3 gal (13 6 litres)
Starter motor battery...................... 12 Volts 50 Ampere hour (min.)
Negative earth
NOTE: Oil capacities, etc , are based on the Imperial (UK.) gallon