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Perkins 4.248 engine bolt torques, specs, manuals - amp

 
Perkins 4.248 engine,
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Perkins 4.248, T4.38 Essential Diesel Engine Bolt Tightening Torques

 
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


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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


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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


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engine manuals and specs
 

Perkins 4.248, T4.38 Diesel Engine 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


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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


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engine manuals and specs
 

Perkins 4.248 Diesel Engine Manuals, handbooks

 





 
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