Briggs and Stratton 422707

Briggs and Stratton 422707The 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)
ATTENTION! Dear visitors, this site is not a trading platform, an official dealer or a spare parts supplier, so we do not have any price lists or spare parts catalogs. We are an information portal and provide the technical specifications of gasoline and diesel engines.

We try to use verified sources and official documentation, however, differences between sources or errors in entering information may occur. We do not provide advice on technical issues related to the engines operation or repair. We do not recommend using provided information for engines repairing engines or spare parts ordering, use only official service manuals and spare-parts catalogs.

Be the first to comment

Leave a Reply

Your email address will not be published.


*