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Perkins 4.236 Essential Diesel Engine Bolt Tightening Torques

 

Perkins 4.236 Main Bearing Setscrew

For engines prior to:
236UA50507 236US12129
236UC19949 236U82408
236UE4404

203 Nm, 150 lb.ft

Other:

244 Nm, 180 lb.ft

Perkins 4.236 Connecting Rod Nut

For engines prior to:
236UA59562 236UH262
236UA1660A 236US16138
236UC22005 236U96087
236UE5408

Cadmium (silver) nuts:
95 Nm, 70 lb.ft

Phosphated (black) nuts:
122 Nm, 90 lb.ft

Other:

Cadmium (silver) nuts:
102 Nm, 75 lb.ft

Phosphated (black) nuts:
129 Nm, 95 lb.ft

Perkins 4.236 Cylinder Head Nut or Setscrew

7/16 inch Nuts (early engines)
81 Nm, 60 lb.ft

For engines prior to:
236UA59562 236UH262
236UA1660A 236US16138
236UC22005 236U96087
236UE5408

1/2 inch nuts/setscrews
136 Nm, 100 lb.ft

Other:

1/2 inch setscrews with integral head washer
120 Nm, 88 lb.ft


Perkins 4.236 Diesel Engine Specs

 

Perkins 4.236 Displacement, Arrangement, Bore, Stroke

Displacement
3.86 liter, 236 CID

Arrangement
4 cylinder in line
turbo and natural aspiration

Bore
98.43 mm, 3.875 in

Stroke
127 mm, 5.0 in

Perkins 4.236 Power, Torque, Compression Ratio

Power
naturally aspirated engines
54-61 kW, 72-82 hp @ 2200-2800 rpm

Power
turbocharged engines
56-76 kW, 90-102 hp @ 2500-2600 rpm

Torque
naturally aspirated engines
194-201 lb.ft, 256-272 Nm @ 1400 rpm

Compression Ratio
natural engines - 16.0:1
turbo engines - 15.5:1




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