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Perkins 4.212 Essential Diesel Engine Bolt Tightening Torques

 

Perkins 4.212 Main Bearing Setscrew

For engines prior to:
212U582 212UA119095

203 Nm, 150 lb.ft

Other:
244 Nm, 180 lb.ft

Perkins 4.212 Connecting Rod Nut

For engines prior to:
212U901 212UA140419
212UA4393A

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 4.212 Cylinder Head Nut or Setscrew

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

For engines prior to:
212U901 212UA140419

212UA4393A

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 4.212 Diesel Engine Specs

 

Perkins 4.212 Displacement, arrangement, bore and stroke

Displacement
3.47 liter, 212 CID

Arrangement
4 cylinder in line
natural aspiration

Bore
98.43 mm, 3.875 in

Stroke
114.3 mm, 4.5 in

Perkins 4.212 Power, torque and compression ratio

Power
46 kW, 62 hp @ 2200 rpm

Torque
169 lb.ft, 229 Nm @ 1350 rpm

Compression Ratio
17.5:1



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