These are called 'swirl flaps' designed to improve combustion by 'swirling' the gasses in the combustion chamber. I can't imagine what happened during a clutch change to cause this, unless the engine ...

When I first start my 2001 Ford Mondeo in the morning it is great, however when the engine warms up I start having problems. It doesn't matter what gear I'm in, whilst trying to accelerate it jumps ...