I need advice regarding my car. I sent my car to a friends garage for a new clutch and fly wheel, car came back making a awful noise and smelt hot. Car was taken back and now they are saying there's something else wrong with it ( nothing to do with the clutch ), the car was fine when I sent it in, no noise just a clutch that was starting to slip. My local garage had looked the car over a couple weeks before and there was nothing else wrong with it. My local garage was too busy to fit the clutch so I let a friend do it (they are apparently a machanic).
After the clutch was done the car was making an awful noise when I put my foot on the excelerator after changing gear, making a whizzing sound and vibrating through the floor. There was also a burning smell. I have been told that this is being caused by a faulty bush arm 
. They are lying? They had fitted a fixed flywheel to the car to cut costs, I was not asked if I would like a cheaper fly wheel and was willing to pay for the correct parts to be fitted.
There's no way the noises are caused by a bush arm?
Obviously they think I know nothing about cars and are trying to cover up the fact they have messed up?