Pop bumper could be a bad solder joint or even just dirt and grease on the rings preventing it moving clean and free.
Sound board issue sounds like faulty capacitors to me.. any "noise" is taken away by those little ceramic caps tied to each IC.

Thanks for the tips Gavin.
I'm pretty sure you nailed them both. The lazy pop bumper was a bit dirty so I did a little you tube home work and pulled it apart from the underside cleaned it all up and re-assembled and all nice and snappy again.
With the Gorgar sound issues defiantly something going on with the sound/speech boards I know longer have any speech instead every time I am meant to get speech a get an electronic sound effect instead so the boards will be sent off for service and repair shortly.