The Briggs and Stratton 422707 is a 694 cc (42.35 cu·in) two-cylinder air-cooled four-stroke internal combustion gasoline engine, manufactured by Briggs and Stratton.
The B&S 422707 engine has an L-head (side valve) design and a vertical PTO shaft. This engine is equipped with float type carburetor and a flywheel magneto ignition system. The B&S 422707 engine used a full pressure lubrication system.
A 87.3 mm (3.44 in) cylinder bore and 58.0 mm (2.28 in) piston stroke give the B&S 422707 engine a total of 694 cc of displacement.
This engine produced 18.1 PS (13.3 kW; 18.0 HP) at 3,600 rpm of horsepower and 38.6 N·m (3.9 kg·m, 28.4 ft·lb) at 2,600 rpm of torque.
The breakdown of the engine code is as follows:
- 42 – Displacement
- 2 – Basic design series
- 7 – Vertical PTO-shaft
- 0 – Ball bearing
- 7 – Electric starter
General information
| Engine Specifications | |
| Model | B&S 422707 |
| Type | 4-stroke, L-head, two-cylinder |
| Displacement | 694 cm 3 (42.3 cu-in) |
| Max. horsepower | 18.1 PS (13.3 kW; 18.0 HP) at 3,600 rpm |
| Max. torque | 38.6 N·m (3.9 kg·m, 28.4 ft·lb) at 2,600 rpm |
| Fuel system | Float type carburetor |
| Cooling system | Forced-air |
| Ignition system | Flywheel magneto |
| Lubricating system | Full pressure lubrication |
| Starting system | Electric starter |
| Fuel used | Gasoline |
| Fuel tank capacity | – |
Cylinder Block and Head
| Cylinder block | ||
| Bore x Stroke | 87.3 mm X 58.0 mm (3.44 x 2.28 in) | |
| Sleeve internal diameter | 87.280-87.310 mm (3.4362-3.4374 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Side clearance | Top | 0.090-0.150 mm (0.0035-0.0059 in) |
| Second | 0.090-0.150 mm (0.0035-0.0059 in) | |
| Oil | 0.090-0.150 mm (0.0035-0.0059 in) | |
| Ring end gap | Top | 0.180-0.430 mm (0.0071-0.0169 in) |
| Second | 0.180-0.430 mm (0.0071-0.0169 in) | |
| Oil | 0.180-0.430 mm (0.0071-0.0169 in) | |
| Connecting rod small end ID | 20.340-20.350 mm (0.8008-0.8012 in) | |
| Piston pin outer diameter | 20.320-20.330 mm (0.8000-0.8004 in) | |
| Cylinder Head | ||
| Valve Arrangement: | L-head | |
| Valves: | 4 (2 per cylinder) | |
| Valve steam diameter | INTAKE | 7.820-7.870 mm (0.3079-0.3098 in) |
| EXHAUST | 7.820-7.870 mm (0.3079-0.3098 in) | |
Tightening torque
| Tightening torque specs | |
| Alternator (to cylinder) | 2.0 Nm; 1.5 ft·lb |
| Air cleaner base (to carburetor) | 3.0 Nm; 2.2 ft·lb |
| Armature | 3.0 Nm; 2.2 ft·lb |
| Blower housings | 10.0 Nm; 7.4 ft·lb |
| Breather | 3.0 Nm; 2.2 ft·lb |
| Carburetor to intake manifold | 11.0 Nm; 8.1 ft·lb |
| Connecting rod | 22.0 Nm; 16.3 ft·lb |
| Crankcase sump/cover | 25.0 Nm; 18.5 ft·lb |
| Cylinder head | 18.0 Nm; 13.3 ft·lb |
| Carburetor to solenoid | 11.0 Nm; 8.1 ft·lb |
| Fan Retainer | 17.0 Nm; 12.6 ft·lb |
| Flywheel nut | 203.0 Nm; 150.0 ft·lb |
| Governor lever nut | 11.0 Nm; 8.1 ft·lb |
| Intake manifold to cylinder head | 10.0 Nm; 7.4 ft·lb |
| Starter motor | 18.0 Nm; 13.3 ft·lb |
Service Information
| Engine | |
| Max speed | 3,600 rpm |
| Valve clearance | |
| Intake valve clearance | 0.15-0.20 mm (0.006-0.008 in) |
| Exhaust valve clearance | 0.23-0.28 mm (0.009-0.011 in) |
| Oil system | |
| Oil type | API SF, SG, SH, SJ or higher |
| Recommended oil |
Summer: SAE 30, 10W-30 Winter: SAE 5W-30 |
| Oil capacity (with filter) | 1.70 L (1.8 US. qt, 1.5 Imp. qt.) |
| Ignition system | |
| Spark plug | Champion RJ-12, AC R-46, Autolite 308 |
| Spark plug gap | 0.7-0.8 mm (0.0276-0.0315 in) |
Author:
Bonjour,je cherche un plan du fillage du moteur 422707-1251-01,j’ai acheter un second mais les fils ont été arracher
is this an interference engine? (can the valves contact the piston tops if the ignition timing is lost?)
no he can’t meet
Does this engine have an oil filter, I have looked everywhere and don’t see one. If so, please tell me where it is at. Thank you so much
does not have an oil filter