0344452 JOHNSON CAP, Restrictor

Table 1
Engine type    S3Q2    S3Q2-T    
Main specifications     Model     Vertical type, Water-cooled, 4-stroke cycle diesel engine    
Number and arrangement of cylinders 3 cylinder in-line    
Combustion type Swirl chamber type    
Valve mechanism Overhead    
Cylinder bore x stroke 88.0 mm x 103.0 mm (3.46 inch x 4.06 inch)    
Displacement
1.879 L (0.500 US gal)    
Compression ratio 22.0:1    
Fuel used JIS K2204, Diesel oil, or its equivalent (ASTM D975, etc.).    
Firing order 1 - 3 - 2    
Direction of rotation Counterclockwise when viewed from flywheel    
Dimensions Overall length    
608.0 mm (23.94 inch)    
608.0 mm (23.94 inch)    
Overall width
492.0 mm (19.37 inch)    
540.0 mm (21.26 inch)    
Overall height
633.0 mm (24.92 inch)    
696.0 mm (27.40 inch)    
Dry weight Approx.
160.0 kg (352.7 lb)     Approx.
165.0 kg (363.8 lb)    
Basic engine     Cylinder     Type     Dry (integral with cylinder block)    
Piston ring Number of rings     Compression rings: 2    
Oil ring (w/expander): 1
Valve timing (when warm) Inlet valve     Open     BTDC 30 degrees    
Close ABDC 50 degrees
Exhaust valve Open BBDC 74 degrees    
Close ATDC 30 degrees
Starting system Electric    
Starting aid system Glow plug    
Fuel system     Fuel injection pump     Type     In-line (Bosch A type) or Distribution (VE type)    
Plunger diameter In-line: Diameter
6.5 mm (0.26 inch)    
Fuel feed pump Type     Bosch, piston type    
Governor Speed control system     Centrifugal type    
Type Bosch RSV type    
Fuel injection nozzle Nozzle type     Bosch, Throttle type    
Number of spray holes 1    
Spray hole diameter Diameter
1.0 mm (0.04 inch)    
Spray angle 0 degrees    
Valve opening pressure
13.73 MPa (1991.00 psi)    
Filtration rating method Cartridge type paper element    
Lubrication system     Lubricating method     Forced circulation type (pressure feed by oil pump)    
Engine oil Standard (API service classification)     Class CF or CH-4    
Engine oil capacity Engine total: approx.
6.40 L (1.69 US gal) (approx.
5.70 L (1.51 US gal) in oil pan)    
Oil pump Type     Trochoid    
Discharge capacity
10.45 L (2.76 US gal) / min or more (at pump rotation of 1000 rpm)    
16.11 L (4.26 US gal) / min or more (at pump rotation of 1000 rpm)    
Relief valve Valve opening pressure    
0.30 to 0.40 MPa (43.51 to 58.01 psi)    
Oil cooler Type     Water-cooled type    
Heating surface area
0.103 m? (97.65 inch?)    
Cooling system     Cooling method     Water-cooled, forced circulation    
Coolant capacity (engine)
3.00 L (0.79 US gal), approx.    
Water pump Type     Volute type centrifugal pump    
Discharge capacity
70.0 L (18.49 US gal) / min (Pump rotating speed 3000 rpm), total pump head 2.5 x 10-2 MPa    
Fan belt Type     Raw edge plain silver belt type A    
Type     Push type (PP fan)    
No. of blades seven equally spaced blades    
Outside diameter Diameter
382.0 mm (15.04 inch)    
Thermostat Type     Wax type    
Valve opening temperature
76.5 1.5 °C (169.7 2.7 °F)    
Inlet and exhaust system     Turbocharger     Type     -     TD03    
Number of units -     1