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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.