Hinomoto E1802 and E1804 specifications: engine, dimensions and data
The Hinomoto E1802 (2WD) and E1804 (4WD) feature a Toyosha CS112 three-cylinder swirl chamber diesel engine. This page brings together the technical specifications for the Hinomoto E1802 and E1804.
Suitable for the entire series: Hinomoto E1802 and E1804. Values are taken from the workshop manual of the sister model Massey Ferguson 1020, unless indicated as approximate.
Contents
Hinomoto E1802 and E1804 model overview
| Specification | E1802 / E1804 |
|---|---|
| Drive | E1802 is 2WD, E1804 is 4WD |
| Engine | Toyosha CS112, 3 cylinders |
| Bore x stroke | 75 x 85 mm |
| Displacement | 1126 cc |
| Power | 18 hp (approximate, not from the manual) |
| Sister model | Massey Ferguson 1020 |
| Transmission | 3 forward and 1 reverse speeds, x 2 ranges, x creeper range (approx. 5.8:1): 12 forward and 4 reverse |
| Steering ratio | 13:1 |
Hinomoto E1802 and E1804 engine data
| Specification | Value |
|---|---|
| Compression ratio | 23:1 |
| Firing order | 1-3-2 |
| Rated engine speed | 2350 rpm |
| Idle speed | 850 to 900 rpm |
| Maximum no-load speed | 2500 to 2550 rpm |
| Static injection timing | 25 degrees before TDC |
| Valve springs per valve | 2 |
| Oil pressure | approx. 1.0 bar at 800 rpm, approx. 4.9 bar at 2700 rpm |
| Thermostat | starts opening at 69 to 73 °C, fully open at 85 °C |
| Radiator cap | opens at approx. 0.9 bar |
The engine is a swirl chamber diesel with a Diesel Kiki inline injection pump with 3 plungers and pintle nozzles. It has 4 main bearings.
Hinomoto E1802 and E1804 overhaul dimensions CS112
| Part | Dimension |
|---|---|
| Cylinder bore | 75.000 to 75.019 mm |
| Piston skirt | 74.91 to 74.93 mm |
| Piston pin | 24.989 to 24.999 mm |
| Piston clearance | 0.07 to 0.109 mm |
| Main journal | 59.960 to 59.985 mm |
| Crankpin | 47.960 to 47.980 mm |
| Bearing clearance | 0.03 to 0.095 mm, maximum 0.15 mm |
| Crankshaft end play | 0.1 to 0.3 mm |
According to the workshop manual, bearings are available in standard, 0.25 and 0.50 mm undersize, and pistons and piston rings in standard and 0.5 mm oversize. Bore out if the cylinder is out-of-round or tapered by more than 0.15 mm. When installing the piston, the recess points obliquely backwards on the right side of the engine.
Please note: head gasket and piston rings are not interchangeable with the CS86 and CS100 of the Hinomoto C-series, due to the different bore size. If you are looking for a head gasket or piston rings for the E1802 or E1804, please contact us with your engine number.
Tip: for the filters of this tractor there is the Filter set Hinomoto E1802/E1804 (SKU-10034).
Hinomoto E1802 and E1804 electrical system
| Part | Specification |
|---|---|
| Battery | 12 V, negative ground |
| Alternator | permanent magnet, 12 poles, 19 A at 14 V |
| Charge indicator light | turns off at approx. 1000 rpm |
| Regulator | 14 to 15 V, separate voltage regulator, non-adjustable |
| Starter motor | Hitachi with built-in reduction gear |
| Starter motor brush length | new 16 mm, minimum 11 mm |
| Glow plugs | wired in parallel, approx. 0.23 ohm each |
A fusible link is located in the red wire near the starter relay.
Hinomoto E1802 and E1804 capacities
| System | Capacity |
|---|---|
| Engine oil with filter | 3.7 L |
| Cooling system | 4.0 L |
| Transmission, rear axle and hydraulics (shared) | approx. 23 L (gear transmission), approx. 26 L (hydrostatic) |
| Front axle center housing (4WD) | 1.5 L |
| Front axle final drives per side (4WD) | 0.4 L |
| Injection pump separate sump | 200 ml engine oil |
Read more about oil and fluids in Hinomoto E1802 and E1804 engine oil and fluids.
Hinomoto E1802 and E1804 tightening torques
| Fastener | Torque |
|---|---|
| Cylinder head bolts M12 (8 pieces) | step 1: 44 to 49 Nm, final torque: 88 to 98 Nm |
| Cylinder head bolts M10 (3 pieces) | step 1: 20 to 25 Nm, final torque: 39 to 49 Nm |
| Valve clearance adjusting screw lock nut | 44 Nm |
| Valve cover nuts | 2 to 3 Nm |
| Rocker arm shaft | 30 to 39 Nm |
| Nozzle holder in head | 58 Nm |
| Glow plugs | 15 to 19 Nm |
| Crankshaft pulley nut | 98 Nm |
| Flywheel bolts | 44 to 49 Nm |
| Clutch pressure plate (6 bolts) | 29 Nm |
| Engine to clutch housing | 70 Nm |
| Front axle wheel bolts | 88 Nm (2WD), 87 Nm (4WD) |
2350 rpm, what does that mean? That is the rated speed of the CS112. Unloaded maximum speed is 2500 to 2550 rpm.
1126 cc, how does that result from the dimensions? It is the displacement of 3 cylinders with a bore of 75 mm and a stroke of 85 mm.
