How to Replace a Bad Camshaft on a Briggs & Stratton Intek Engine | Single Cylinder Rebuild

Video Summary In this DIY repair tutorial, Ralf diagnoses and fixes a Briggs & Stratton Intek single-cylinder engine that starts but severely lacks power and won't reach full operating speed. The culprit is revealed to be a busted camshaft with a completely worn-down intake lobe. The video walks through the complete process of tearing down the engine case, removing the damaged components, and installing a new aftermarket camshaft kit. Crucial steps are covered in detail, including aligning the camshaft and crankshaft timing marks, properly reinstalling the governor, finding Top Dead Center (TDC), inserting the push rods in their proper locations, and precisely setting the cold valve lash. The project wraps up with a quick inspection of the carburetor bowl before buttoning up the engine block for a future project. Indexed Video Chapters [00:00] Diagnosing the Engine: Low Power & Bad Camshaft [01:17] Inspecting the Worn Camshaft vs. New Replacement Kit [03:32] Aligning the Crankshaft and Camshaft Timing Marks [05:04] Installing the Governor and Crankcase Gasket [07:42] Reassembling the Lower Engine Block & Oil Pump [11:34] Tightening the Case Bolts in a Crisscross Pattern [16:42] Quick Tip: How to Find Top Dead Center (TDC) [18:33] Installing the Push Rods (Aluminum vs. Steel) [23:49] Setting the Cold Valve Lash Clearance [29:08] Inspecting the Carburetor Bowl & Final Assembly Key Project Highlights If you want to jump straight to the most critical mechanical steps of the repair, here are the key moments: [01:17](   • How to Replace a Bad Camshaft on a Briggs ...  ) Identifying the Problem: A side-by-side look at the busted camshaft where the intake lobe is completely flattened out, explaining exactly why the engine lacked power. [03:32](   • How to Replace a Bad Camshaft on a Briggs ...  ) Timing Mark Alignment: A critical step demonstrating how to correctly line up the dot on the crankshaft gear with the timing mark on the new camshaft to ensure proper engine timing. [11:34](   • How to Replace a Bad Camshaft on a Briggs ...  ) Case Reassembly: Bolting the bottom end of the engine back together using a proper crisscross pattern to ensure a tight, even seal on the new gasket. [16:42](   • How to Replace a Bad Camshaft on a Briggs ...  ) Finding Top Dead Center: A helpful tip on how to manually locate Top Dead Center (TDC) using a slim screwdriver in the spark plug hole to prepare for valve adjustments. [18:33](   • How to Replace a Bad Camshaft on a Briggs ...  ) Push Rod Placement: An important reminder and correction highlighting the necessity of putting the aluminum and steel push rods in their correct respective intake and exhaust positions. [23:49](   • How to Replace a Bad Camshaft on a Briggs ...  ) Setting Valve Lash: The exact process of using feeler gauges to adjust the intake and exhaust valve clearances (.10mm and .15mm) on the cold engine.