Basic specs are free and open to everyone They usually include engine images, displacement, dimensions and weight, essential bolt tightening torques, characteristics of the engine e.g. its power and torque. Essential bolt tightening torques are main bearing cap bolt torque, connecting rod cap bolt torque and the cylinder head bolt torques.
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Perkins 4.248, T4.38 Main Bearing Setscrew torque For engines prior to: 248U6330 248UA58746 203 Nm, 150 lb.ft else 244 Nm, 180 lb.ft Click for Perkins 4.248 engine manuals and specs
Perkins 4.248, T4.38 Connecting Rod Nut torque For engines prior to: 248U9045 248UA78127 Cadmium (silver) nuts: 95 Nm, 70 lb.ft Phosphated (black) nuts: 122 Nm, 90 lb.ft else Cadmium (silver) nuts: 102 Nm, 75 lb.ft Phosphated (black) nuts: 129 Nm, 95 lb.ft Click for Perkins 4.248 engine manuals and specs
Perkins 4.248, T4.38 Cylinder head nut or setscrew torque 7/16 inch Nuts (early engines) 81 Nm, 60 lb.ft For engines prior to: 248U9045 248UA78127 1/2 inch nuts/setscrews 136 Nm, 100 lb.ft else 1/2 inch setscrews with integral head washer 120 Nm, 88 lb.ft Click for Perkins 4.248 engine manuals and specs
Perkins 4.248, T4.38 Displacement, Arrangement, Bore, Stroke Displacement 4.06 liter, 248 CID Arrangement 4 cylinder in line turbo and natural aspiration Bore 100.96 mm, 3.975 in Stroke 127 mm, 5.0 in Click for Perkins 4.248 engine manuals and specs
Perkins 4.248, T4.38 Power, Torque, Compression Ratio Power naturally aspirated engines 54-62 kW, 72-84 hp @ 2200-2600 rpm Power T4.38 turbocharged engines 69.5 kW, 93 hp @ 2600 rpm Torque naturally aspirated engines 194-210 lb.ft, 263-285 Nm @ 1400 rpm Torque T4.38 turbo engines 218lb.ft, 296 Nm @ 1600 rpm Compression Ratio natural engines - 18.0:1 turbo engines - 15.5:1 Click for Perkins 4.248 engine manuals and specs
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