Briggs & Stratton — Disassembling the Engine
Repair & overhaul
From a Briggs & Stratton service manual — check it applies to your exact model before use.
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Before you start
- Check each item as removed to determine its condition
Procedure
- Drain oil and fuel
- Remove air cleaner, brace and elbow; remove muffler
- Disconnect fuel line at carburetor; remove fuel tank and filter
- Remove spark plug using wrench supplied with engine
- Remove cotter pin which holds link attached to governor arm
- Remove screws (2) which hold carburetor to elbow and remove carburetor
- Remove carburetor elbow and baffle plate
- Remove cylinder head; remove valve cover plate and gasket
- Remove valves, springs and retainer
- Unhook governor spring from arm; remove blower case
- Remove rope starter pulley; remove flywheel
- Remove engine base; remove oil pump
- Remove piston and connecting rod; remove piston pin and rings
- Remove magneto plate; slide crankshaft out through magneto side
- Drive out cam shaft and remove gear and tappets; remove governor lever from crankcase and remove governor assembly
Tools required
- Spark plug wrench supplied with engine Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Briggs & Stratton service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.