KR-1S.co.uk Forum

Hi Guys !

What dictates a stuffed power valve ?

Is it the grove around the shaft caused by the rubber seal or is there other things that happen to them ?

I have just pulled down the top end and apart from the linkages and pully's, the only thing i can see is the groves around the shaft's .

cheers Holma ..

I'm not sure I understand what you mean by groove on the shaft.

Do you want to take a photo?

The seals wear two grooves into the shafts.

To avoid this use shafts made from solid and get them coated. See RGV forum there is a coating you get get on alloy that makes the surface stronger than steel.