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Perkins 1103A-33G Engine

The Perkins 1103A-33G is a 4-stroke vertical 3-cylinder direct injection naturally aspriated liqiud-cooled diesel engine from 1100 series. A 201 cu.in (3.3 L) engine has a cylinder bore of 4.13" (105 mm), piston stroke of 5.00" (127 mm), and rated power of 45 Hp (33.2 kW) at 2200 rpm. The compression ratio rating is 19.3:1. The Perkins 1103A-33G engine is equipped with a rotary type fuel injection pump, electrical fuel lift pump, forced lubrication with spin-on filter, dual element air cleaner, and electric starter. The operating weight is 907 lbs (412 kg).

General Technical Data

Engine Specifications

Engine Model ............... Perkins 1103A-33G
Engine Type ............... 4-Stroke vertical liquid-cooled diesel
Number of Cylinders ............... 3
Cylinder Arrangement ............... In-line
Engine Bore, in (mm) ............... 4.13 (105.0)
Engine Stroke, in (mm) ............... 5.00 (127.0)
Displacement, cu.in (L) ............... 201 (3.30)
Aspiration Type ............... Naturally aspriated
Rated Engine Power, hp (kW) ............... 45.0 (33.2)
Rated Engine Speed, rpm ............... 2200
Compression Ratio ............... 19.3:1
Firing Order ............... 1-2-3
Lubrication System ............... Forced with gear pump
Oil Filter Type ............... Spin-on full flow
Oil Pump Type ............... Differential rotor, gear driven
Cooling System ............... Liquid-cooled
Air Cleaner Type ............... Dual, dry element
Starting System ............... Electric Starter
Electrical System Rating, Volts ............... 12
Charging System ............... Alternator

Fuel System

Fuel System ............... Direct injection
Injection Pump Type ............... Rotary
Fuel Atomiser ............... Multi-hole
Fuel Lift Pump Type ............... Electrical
Governor Type ............... Electronic
Fuel Filter Type ............... Paper element
Fuel Type ............... Diesel Fuel

Dimensions and Weight

Overall Width, in (mm) ............... 24.8 (630)
Overall Height, in (mm) ............... 37.4 (950)
Overall Length, in (mm) ............... 40.5 (1030)
Net Weight, lbs (kg) ............... 907 (412)

Maintenance Data

Cylinder and Valves

Cylinder Bore Inside Diameter (Max), in (mm) ............... 4.1398 (105.15)
Cylinder Head (Max Out of Flatness), in (mm) ............... 0.0012 (0.03)
Intake Valve Clearance, in (mm) ............... 0.008 (0.20)
Exhaust Valve Clearance, in (mm) ............... 0.018 (0.45)

Engine Oil and Coolant

Engine Oil Type (Summer) .................. SAE 10W-30, 15W-40
Engine Oil Type (Winter) ......................... SAE 5W-20
API Service Classifications ......................... CG4 or CH4
Engine Oil Capacity, qts (L) .................. 8.7 (8.3)
Coolant Capacity, qts (L) ............... 10.7 (10.2)

Service Specifications

Cylinder Block

Cylinder Bore Inside Diameter (Std), in (mm) ............... 4.1338-4.1348 (105.000-105.025)
Cylinder Bore Inside Diameter (Wear Limit), in (mm) ............... 4.1398 (105.150)
Connecting Rod Small End Inside Diameter, in (mm) ............... 1.693-1.694 (43.01-43.04)
Connecting Rod Big End Inside Diameter, in (mm) ............... 2.6460-2.6465 (67.21-67.22)
Connecting Rod Big End Bearing Clearance, in (mm) ............... 0.0012-0.0032 (0.030-0.081)
Crankshaft Main Journal Outside Diameter (Std), in (mm) ............... 2.998-2.999 (76.16-76.18)
Crankshaft Main Journal Outside Diameter (Wear Limit), in (mm) ............... 2.9969 (76.12)
Crank Pin Outside Diameter (Std), in (mm) ............... 2.499-2.500 (63.47-63.49)
Crank Pin Outside Diameter (Wear Limit), in (mm) ............... 2.497 (63.43)
Crankshaft End Play, in (mm) ............... 0.002-0.015 (0.05-0.38)
Piston Pin Bore Inside Diameter, in (mm) ............... 1.5631-1.5633 (39.703-39.709)
Piston Pin to Small End Bushing Clearance, in (mm) ............... 0.0009-0.0017 (0.023-0.044)
Piston Pin Outside Diameter, in (mm) ............... 1.5628-1.5630 (39.694-39.700)
Piston Pin to Piston Bore Clearance, in (mm) ............... 0.0001-0.0006 (0.003-0.015)
Top Ring Width, in (mm) ............... 0.097-0.098 (2.48-2.49)
Second Ring Width, in (mm) ............... 0.097-0.098 (2.47-2.49)
Oil Ring Width, in (mm) ............... 0.1366-0.1374 (3.47-3.49)
Top Ring Side Clearance, in (mm) ............... 0.0035-0.0059 (0.09-0.15)
Second Ring Side Clearance, in (mm) ............... 0.002-0.003 (0.05-0.09)
Oil Ring Side Clearance, in (mm) ............... 0.0011-0.0027 (0.03-0.07)
Top Ring End Gap, in (mm) ............... 0.0118-0.0216 (0.30-0.55)
Second Ring End Gap, in (mm) ............... 0.0275-0.0374 (0.70-0.95)
Oil Ring End Gap, in (mm) ............... 0.0118-0.0216 (0.30-0.55)

Cylinder Head and Valves

Cylinder Head Flatness, in (mm) ............... 0.0004-0.0011 (0.01-0.03)
Intake Valve Clearance (Cold), in (mm) ............... 0.008 (0.20)
Exhaust Valve Clearance (Cold), in (mm) ............... 0.018 (0.45)
Intake Valve Seat Angle, deg ............... 30
Exhaust Valve Seat Angle, deg ............... 30
Intake Valve Face Angle, deg ............... 30
Exhaust Valve Face Angle, deg ............... 30
Intake Valve Stem Outside Diameter, in (mm) ............... 0.3525-0.3533 (8.953-8.975)
Exhaust Valve Stem Outside Diameter, in (mm) ............... 0.3519-0.3528 (8.938-8.960)
Intake Valve Guide Inside Diameter, in (mm) ............... 0.3543-0.3552 (9.000-9.022)
Exhaust Valve Guide Inside Diameter, in (mm) ............... 0.3543-0.3552 (9.000-9.022)
Intake Valve Guide To Valve Stem Clearance, in (mm) ............... 0.001-0.0027 (0.025-0.069)
Exhaust Valve Guide To Valve Stem Clearance, in (mm) ............... 0.0016-0.0033 (0.040-0.084)
Intake Valve Head Diameter, in (mm) ............... 1.819-1.829 (46.20-46.45)
Exhaust Valve Head Diameter, in (mm) ............... 1.634-1.644 (41.51-41.75)
Intake Valve Spring Free Length, in (mm) ............... 1.318 (33.50)
Exhaust Valve Spring Free Length, in (mm) ............... 1.318 (33.50)
Intake Cam Height, in (mm) ............... 0.2906-0.2946 (7.382-7.482)
Exhaust Cam Height, in (mm) ............... 0.2914-0.2954 (7.404-7.504)

Tightening Torque Specs

Cylinder head bolts, Nm (lb-ft) ............... 100 (74)
Connecting rod nuts, Nm (lb-ft) ............... 70 (52)
Crankshaft main bearings bolts, Nm (lb-ft) ............... 245 (180)
Crankshaft pulley bolts, Nm (lb-ft) ............... 115 (85)
Flywheel bolts, Nm (lb-ft) ............... 105 (77)
Flywheel housing bolts, Nm (lb-ft) ............... 115 (85)
High-pressure fuel pipes nuts, Nm (lb-ft) ............... 30 (22)
Atomiser clamp bolts, Nm (lb-ft) ............... 35 (26)
Oil filter element, Nm (lb-ft) ............... 25 (18)
Oil inspection valve, Nm (lb-ft) ............... 12 (9)
Fan drive pulley bolts, Nm (lb-ft) ............... 44 (32)
Exhaust manifold bolts, Nm (lb-ft) ............... 33 (24)
Camshaft gear bolts, Nm (lb-ft) ............... 95 (70)
Alternator retaining nut, Nm (lb-ft) ............... 80 (59)

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• Perkins Engines Specifications
  
• Perkins 1103A-33T Specs
  
• Perkins 1103A-33TG1 Specs
  
• Perkins 1103A-33TG2 Specs
  
• Perkins 1106A-70TA Specs
  
• Perkins 1106A-70TAG2 Specs
  
• Perkins 1106A-70TAG3 Specs
  

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