fitted new cam belt, balance belt, car runs very very well but with lots more noise, cant see it being the cam belt as that the tension is set by the hydraulic tensioner,
i remember the same thing with my 944 when belts were changed.
any ideas? don
If the balance shaft belt is too tight, it will make a whirring noise. I noticed this when I did mine. Just loosen it up some, and if the B/S belt is the prob. then it will quiet down.
the B/S belt should br just tight enough to not flop around.