272144 Vanguard Twin Cylinder OHV BRIGGS & STRATTON.pdf

Fig. 13
2. Install valve covers with new gaskets and valve
cover seals (6), Fig. 14. Torque nuts (7) to 25 in.
lbs. (3 Nm).
NOTE: Models 540000, 610000 – 70 in. lbs. (8 Nm)
3. Repeat for No. 2 cylinder.
4. Adjust valve clearance. See Section 1.
Install Flywheel
Fig. 15
All models except Engines with POWERLINK
CAUTION: Clean flywheel and crankshaft taper.
Remove ALL oil, dirt and grease.
1. Assemble flywheel to crankshaft and align keyways.
2. Insert flywheel key into crankshaft.
Torque Flywheel Nut
Models 290000, 303000, 540000, 610000
1. Install starter hub (if equipped), washer and flywheel
nut.
Fig. 14
Install Starter Motor, Breather, Alternator
2. Place Flywheel Strap Wrench #19433 (1)
around outer rim of flywheel, Fig. 16.
3. Use torque wrench (2) to torque flywheel nut to
125 ft. lbs. (175 Nm). Models 290000, 303000
and 150 ft. lbs. (203 Nm). Models 540000 and
610000.
1. Install back plate (1), Fig. 15. Torque screws to
65 in. lbs. (7 Nm).
2. Install alternator (2). Torque screws to 20 in. lbs.
(2 Nm).
CAUTION: Route alternator wire(s) behind starter
motor. DO NOT pinch wires.
3. Install starter motor (3). Torque screws to 140 in.
lbs. (16 Nm).
4. Install breather, Models 290000 – 350000.
Torque screws to 30 in. lbs. (3 Nm).
Fig. 16
167