Ive got a series 2 erst when i rev the engine it sounds fine when standing over the engine but when u sit inside and rev it or drive it u can hear a highish pitched whine which gets louder the more its revved which sounds similar to electrical whine that u hear when ur stereo is on(btw i havent got a stereo in the car) and u get interferance, its the only way i can describe it, the water temp is fine, it starts and idles perfect the alternator belt was a little loose and i was hoping it was that but i tightened it up this afternoon and its still like it ,
could this sound be caused by a split pipe? or any other ideas what it could be...cheers pp

 

Has the cam belt been changed recently ? If so check its not been done up too tight, that can cause a whine noise. Also have you over tightened the alternator belt ?

Does the whine increase as the engine revs increase ?

 

yeah sort of ,

and how difficult a job is it to adust the cambelt??
is this whining noise a known thing??, cheers

 

anymore ideas peeps, would like to have a look at it today as im off work

 

take the alternator belt off altogether,that way you would be sure that its not the belt or the alternator,obviousley put it back on after

 

good idea mate ill do that , is the overtightening of the cambelt common then??

 

Not common, but i have heard a RST with a cam belt too tight and it made a whine noise