14-01-2018, 07:47 PM
Ian
A crude sketch of my arrangement.
I built it to suit a Cozette blown car with the water pump on the front of the mag timing case, driven by the mag drive shaft. I replaced the whole mag drive shaft with a new one made in stainless.
The core element is the use of a modern ceramic seal, sourced from Chenderit in the UK. Once I'd found that and had the seal design drawing (below as well) the rest more or less designed itself. The impeller came from James Gunn who has a pattern. Housing parts were cast from scratch.
The seals and bearing need to be scrapped when you remove the outer timing cover which is the major downside. If I was a better engineer I'd work out a different approach but you do what you can......
Charles