Install Pistons And Connecting Rods; General Assembly - Briggs & Stratton Vanguard 430000 User Manual

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.
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