Broken timing belt on an interference engine… now what? Quick breakdown of what an interference engine actually means and why timing is EVERYTHING. Pistons and valves share the same space so when timing is lost, internal damage is always a real possibility. In this video I walk through: • Why a compression test is NOT possible with a broken timing belt • Using spark plugs as an early indicator (and why they don’t always tell the full story) • Why a borescope can miss damage • Safely positioning