Re: O\D sounds..TR4

["Peter Gillis" <pgillis@cosmedia.ie>]

Bob wrote 
> I took my TR4 to Charlotte this weekend.  It was the first time to
> really try out the O\D on a long trip since I installed it.  It seemed
> to make a deep hollow sound(rhythmical) when engaged.  I thought maybe
> it was the exhaust touching frame or something, but without O\D engaged
> the deep roar is gone.  For all I know this is a normal sound, since
> I've not been lucky enough to have an O\D before.  Is it?
>                               Bob Mc

Can't help you identify what it is, but normal its not.

Cheers
Peter Gillis
'69 2000 Mk1
'63 TR4