Thanks all, He knew there were some already on the market, but the one my dad has tried was not substantial enough and as you said, this was virtually free![]()
The great thing is with that one that you don't have to take the head off. All the shop bought ones I've seen need the head to be off so as to clamp around it.
Is there any likelihood of losing the valve down inside the cylinder if the piston's at the bottom of its travel?