SECTION B Technical Data Engine Data 4.108 and 4.107 3.125 in (79,37 mm) 3.5 in (88,9 mm) Four 107.4 in 3 (1,760 litre) 22:1 1,3,4,2. Four-Stroke Indirect Injection Clockwise viewed from front 4.99 3.00 in (76,2 mm) 3.5 in (88,9 mm) Four 99 in 3 (1,621 litre) 20:1 1, 3, 4, 2. Four-Stroke Indirect Injection Clockwise viewed from front Bore (nominal- See Page B.3) ... Stroke ... No. of Cylinders Cubic Capacity ... Compression Ratio Firing Order Cycle '" Combustion System Engine Rotation ...
Rating Details 4.99 Maximum Gross Rated Output 48 bhp (37 kW) at 4000 rev/min 73 Ibf ft (10,1 kgf m) at 2250 rev/min 4.107 41 bhp (30,6 kW) at 3000 rev/min 79 Ibf ft (10,9 kgf m) at 1900 rev/min 4.108 55 bhp (41 kW) at 4000 rev/min 83 Ibf ft (11,5 kgf m) at 2200 rev/min Maximum Gross Torque Output Engine Weights, Dry Approx. dry weight, bare engine, i.e. complete with fuel injection equipment, pressed steel oil sump, dynamo, water pump, but not including starter motor, air cleaner, fan, flywheel or flywheel housing: 330 Ib (150 kg). Typical dry weight, engine with all accessories: 450 Ib (204 kg).
Where engines are called upon to operate in rarefied atmospheres occasioned by altitude, such engines should be de-rated. The following table is given as a general guide, which may be applied on a percentage basis, where specific figures for a particular engine rating are not available. Altitude 0- 2,000 feet ( 600 metre) 2,000- 4,000 feet (1,200 metre) 4,000- 6,000 feet (1,800 metre) 6,000- 8,000 feet (2,400 metre) 8,000-10,000 feet (3,000 metre) 10,000-12,000 feet (3,600 metre) Maximum fuel delivery de-rating* No change 6% 12% 18% 24% 30% * Measured at setting speed given in pump setting code. Any necessary adjustments in this respect to the fuel pump should be carried 01.11 by the C.A.V.
dealer or Perkins Distributor for the territory concerned. For any further information apply to Technical Services Department, Perkins Engines Limited, Peterborough or to one of the Perkins Companies listed on Page 2.