Briggs & Stratton — Install Crankshaft
Repair & overhaul · Crankshaft and main bearings
From a Briggs & Stratton service manual — check it applies to your exact model before use.
Browse Briggs & Stratton generators & specs →
Procedure
- Install upper main bearings in their respective saddles with tang aligned with notch; lubricate with engine oil.
- Install lower main bearings in bearing caps; lubricate with engine oil.
- Install crankshaft with gear facing front of cylinder block; install crankshaft shims on #3 main bearing web with grooves facing out.
- Install main bearing caps with arrows facing front; lubricate screw threads.
- Starting with #3 bearing cap, torque caps one at a time in sequence shown to 61.0 Nm (45 ft. lbs.).
- Recheck crankshaft end play: 0.025 — 0.23 mm (0.001 — 0.009 in).
Specs & values
- Make sure crankshaft rotates freely after each bearing cap
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.