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Perkins 4.236 Torque Specifications

Type lb-ft N-m
Cylinder Head Nuts / Setscrews (1/2 in) 100 136
Cylinder Head Nuts (7/16 in early 4.236 engines) 60 81
Cylinder Head Nuts / Setscrews (1/2 in) (T4.236 cold) 100 136
Cylinder Head Setscrews (1/2 in) with Integral Head Washer (cold) 88 120
Connecting Rod Nuts*-Cadmium 70 95
Connecting Rod Nuts*-Phosphated 90 122
Connecting Rod Nuts    
Cadmium Plated (silver finish) 75 102
Phosphated (black finish) 95 129
Main Bearing Setscrews** 150 203
Main Bearing Setscrews†† 180 244
Idler Gear Hub Setscrews 30 41
Fuel Injection Pump Gear Retaining Setscrews (3) 20 27
D.P.S. Fuel Injection Pump Gear Retaining Nut 60 81
Flywheel Setscrews 80 108
Flywheel Place Bolts 90 122
Flywheel Housing Setscrews 3/8 UNF (Standard) 36 49
Flywheel Housing Setscrews 3/8 UNF (Durlock) 67 91
Flywheel Housing Setscrews 3/8 UNF (4.2482 engines) 42 57
Camshaft Gear Retaining Setscrews 50 68
Crankshaft Pulley Retaining Setscrew (1) 1.67 in (42,4 mm) A/F 300 406
Crankshaft Pulley Retaining Setscrew (1) 1.5 in (38,1 mm) A/F    
Cadium Plated (silver finish) 240 325
Phosphated (black finish) 285 390
Crankshaft Pulley Retaining Setscrews (3) 70 95
Lub. Oil Filter Setscrews/Nuts 30 41
Atomiser Securing Nuts 14 18
Atomiser Clamp Nuts 9 12
Rockershaft Support Brackets (Aluminum) 30 41
Rockershaft Support Brackets (Cast Iron) 54 74
High Pressure Fuel Pipe Nuts 15 20
Dynamo Pulley Retaining Nut 20 27
Alternator Pulley Retaining Nut (7/16 in.) 30 41
Alternator Pulley Retaining Nut (9/16 in.) 30 41
Alternator Pulley Retaining Nut (5/8 in.) 42 57
Alternator Pulley Retaining Nut (M27) 44 60
Balancer Retaining Setscrews 40 50
Thermostat with Adaptor 10 13
Piston Cooling valve assembly (T4.236) 20 27
* For engines preceding the following Engine Nos:    
**For engines preceding the following Engine Nos:    
† For engines commencing at the following Engine Nos:    
†† For engines commencing at the following Engine Nos:    
212U901     236UA59562
236UH262     212U582     236UA50507
   
236US12129     212UA140419
236UA1660A     236US16138
   
212UA119095     236UC19949
248U6330     212UA4393A
   
236UC22005     248U9045
236U82408     236UE4404     248UA58746
   
236U96087
236UE5408     248UA78127
   
Note: The engine numbers shown above include a new engine number series
which start LD, LF, LG, LM and LJ.

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