The Tecumseh OH160 is a 453 cc (27.6 cu·in) single-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Tecumseh.
The Tecumseh OH160 (the first model year was designated as an HH160) engine has an overhead valve (OHV) design, horizontal PTO shaft, cast-iron cylinder block. This engine is equipped with the Walbro carburetor and solid-state ignition system.
The cylinder bore is 88.9 mm (3.5 in) and the piston stroke is 69.8 mm (2.75 in). This engine produced 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm horsepower.
The breakdown of the engine code is as follows:
- OH – Horizontal-Heavy Duty with valve-in-head design
- 160 – 16.0 HP
General information
| Engine Specifications | |
| Model | OH160 |
| Type | 4-stroke, OHV, single cylinder |
| Displacement | 453 cm3 (27.6 cu-in) |
| Max. horsepower | 16.2 PS (11.9 kW; 16.0 HP) at 3,600 rpm |
| Max. torque (crank PTO) | – |
| Fuel system | Walbro carburetor |
| Cooling system | Forced-air |
| Ignition system | Solid-state ignition system |
| Lubricating system | Splash type |
| Starting system | Recoil or electric starter |
| Fuel used | Gasoline (octane number 86 or higher) |
| Fuel tank capacity | – |
Cylinder Block and Head
| Cylinder block | ||
| Bore x Stroke | 88.9 X 69.8 mm (3.50 x 2.75 in) | |
| Sleeve internal diameter | 88.9000-88.9250 mm (3.5000-3.5010 in) | |
| Piston skirt outer diameter | 88.7730-88.8240 mm (3.4950-3.4970 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Ring end gap | Top | 0.254-0.508 mm (0.010-0.020 in) |
| Second | 0.254-0.508 mm (0.010-0.020 in) | |
| Piston pin outer diameter | 17.465-17.475 mm (0.6876-0.688 in) | |
| Cylinder Head | ||
| Valve Arrangement: | OHV (overhead valve) | |
| Valves: | 2 | |
| Valve spring free length: | 50.292 mm (1.98 in) | |
Service Information
| Valve clearance | |
| Intake valve clearance | 0.127 mm (0.005 in) |
| Exhaust valve clearance | 0.254 mm (0.010 in) |
| Oil system | |
| Oil type | API SF or SE |
| Recommended oil |
Summer 30 or 10W-30, Winter 5W-30, 10W |
| Oil capacity | 1.5 L (1.59 US. qt, 1.32 Imp. qt.) |
| Ignition system | |
| Spark plug | Champion L-82C, L-85 |
| Spark plug gap | 0.7-0.8 mm (0.0276-0.0315 in |
| Fuel system | |
| Carburetor | Walbro |
| High spped adjustment screw | 1 turn |
| Idle adjustment screw | 1 turn |
On this engine spec sheet, you show a piston skirt diameter of 88.7730-88.8240 mm (3.495-3.497 in) but a sleeve ID of 84.125-84.150 mm (3.312-3.313 in). Is this engine sleeved?
No, wrong string, fixed
How much does their 16 h.p. engine weigh?
Do you have know what the pto shaft diameter is?
What is the squeeze chamber dim. supposed to be ? ( Clearance between Cylinder Head & Piston @ TDC )