Briggs & Stratton Vanguard 430000, User Manual

Page: 62 / 159

59
9
Install Pistons and Connecting Rods
1. Install connecting rod bearings. Be sure tang
on bearing is seated in notch ( A , Figure 5) in
connecting rod and cap.
2. Install a piece of vinyl tubing ( B ) over each
connecting rod screw to prevent damage to
screw threads or crankpin when installing
piston and connecting rod.
Figure 5
3. Rotate crankshaft so that crankpin is at
bottom of stroke. Lubricate cylinder walls,
pistons and rings, bearings, and crankpins.
4. Using Tool Ring Compressor #19070, install
piston and connecting rod assemblies with
arrow on piston facing front.
5. Install connecting rod cap with ID mark
( A , Figure 6) facing front. Lubricate threads
and torque nuts to values listed in Section 14
- Engine Specifications.
Figure 6
NOTE: After torquing rod cap, make sure
crankshaft rotates freely before proceeding to next
cylinder.
General Assembly
1. Install gasket, oil pick-up tube and strainer
(Figure 7). Torque screws to values listed in
Section 14 - Engine Specifications.
Figure 7
2. Install gasket and rear seal retainer
( A , Figure 8). Torque screws to values listed
in Section 14 - Engine Specifications.
3. Install starter motor ( B ) and torque screws to
values listed in Section 14 - Engine
Specifications.
Figure 8
4. Install flywheel and flywheel holder
( A , Figure 9).
5. Apply sealant to flywheel screws and torque
to values listed in Section 14 - Engine
Specifications.