Interference Engine: The Honda CRX si from that era typically has an interference engine design. In an interference engine, the pistons and valves share the same space in the combustion chamber. When the timing belt breaks, the synchronization between the crankshaft and camshaft is lost. This means the valves can stay open or partially open when the pistons are moving up, resulting in a collision between the valves and pistons. This collision can cause severe damage to the valves, pistons, and other engine components.
Bent Valves: The impact between the valves and pistons usually bends or breaks the valves. The bent or broken valves can no longer seal the combustion chamber properly, leading to loss of compression, misfiring, and poor engine performance.
Piston Damage: The pistons can also suffer damage from the collision with the valves. The impact can crack, chip, or even break the pistons, causing further internal engine damage.
Cylinder Head Damage: The cylinder head, which houses the valves and other critical components, may also get damaged. The impact between the valves and pistons can put stress on the cylinder head, leading to cracks or warps, which can compromise its integrity and cause coolant or oil leaks.
Overall, a broken timing belt in your 1988 Honda CRX si can have catastrophic consequences for the engine. It is essential to have the timing belt inspected and replaced at the recommended intervals specified in the vehicle's maintenance schedule to prevent such failures.
