Black & Decker 11/16" super-service valve refacer

[campbell62]

Hi, I have a Black & Decker 11/16" super-service valve refacer that I want to replace the valve grinding wheel but the wheel keeps turning as I try to loosen the center allen bolt (which is tight!!). Is there a way to lock the wheel to get the bolt loose? thanks

 

[cannuck]

wrap a rubber strap wrench around the stone if you have access. If not you should be able to get the center bolt loose with an impact driver.

 

[jimhelp]

Mine, I can grab the opposite wheel for the valve stem side and then lose or tighten the nut on the valve surface side

 

[Provincial]

Be aware that the center Allen bolt could have a left-hand thread if the rotation of the wheel would tend loosen it.