Briggs & Stratton Twin Cylinder L-Head Repair Manual page 3

COMMON SPECIFICATIONS FOR OPPOSED TWIN CYLINDER ENGINES
Sleeve Bore Models: 400400, 400700, 402400, 402700, 404400, 404700, 422400, 422700, 462700
Aluminum Bore Models: 401400, 401700, 421400, 421700
Armature Air Gap
Crankshaft End Play
**Governed Idle Speed (all models)
Spark Plug Gap
Valve Clearance (Cold)
** Top Governed Speed: See Briggs & Stratton Service Engine Sales Manual Microfiche MS-6255 or
Sales Manual MS-4052
Alternator (to cylinder)
Air Cleaner Base (to carb.)
Armature
Back Plate
Blower Housing
Breather
Carburetor (to manifold)
Carburetor Plug/Solenoid
Connecting Rod
Crankcase Cover/Sump
Horizontal Crankshaft
Vertical Crankshaft
Cylinder Head
Fan Retainer
Flywheel
Governor Control Bracket
Governor Lever Nut
Intake Manifold
Spark Plug
Starter Motor
Starter Motor Thru Bolts
II
Common Specifications – All Model Series
 Ignition
Magnetron
Breaker Point Ignition
Vertical Shaft Engines
Horizontal Shaft Engines
Springs Installed
Intake
Exhaust
Without Springs
Intake
Exhaust
Torque Specifications – All Model Series
Crankcase Cover
Base
Steel Cover Plate
Aluminum Cover Plate
Sump
.008" – .012" (0.20 – 0.30 mm)
.010" – .014" (0.25 – 0.35 mm)
.002" – .026" (0.05 – 0.66 mm)
.004" – .012" (0.10 – 0.30 mm)
1200 – 1400 RPM
.030" (0.76 mm)
.004" – .006" (0.10 – 0.15 mm)
.007" – .009" (0.17 – 0.22 mm)
.006" – .008" (0.15 – 0.20 mm)
.009" – .011" (0.22 – 0.28 mm)
20 in. lbs. (2.0 Nm)
25 in. lbs. (3.0 Nm)
25 in. lbs. (3.0 Nm)
150 in. lbs. (17.0 Nm)
90 in. lbs. (10.0 Nm)
25 in. lbs. (3.0 Nm)
100 in. lbs. (11.0 Nm)
100 in. lbs. (11.0 Nm)
190 in. lbs. (22.0 Nm)
225 in. lbs. (25.0 Nm)
27 ft. lbs. (37.0 Nm)
250 in. lbs. (28.0 Nm)
27 ft. lbs. (37.0 Nm)
225 in. lbs. (25.0 Nm)
160 in. lbs. (18.0 Nm)
150 in. lbs. (17.0 Nm)
150 ft. lbs. (203.0 Nm)
35 in. lbs. (4.0 Nm)
100 in. lbs. (11.0 Nm)
90 in. lbs. (10.0 Nm)
200 in. lbs. (22.0 Nm)
160 in. lbs. (18.0 Nm)
50 in. lbs. (6.0 Nm)