Ahhh, you know I was thinking about this, although I was wondering if it was the diaphragm cover that had maybe warped, I put an edge across it and it looked to be ok. I hadn't thought of the body, thanks for the tip.
Just saw your edit, yes horizontal shaft, will still have a look at it because I think there is some sort of mating issue / hole at the diaphragm allowing fuel to get behind it, if the body is warped it might be getting sucked in a bit by the vacuum and letting fuel past..maybe. There's only the one diaphragm for this model, but they are all after market so could be a tolerance issue maybe.
Thanks all the same, appreciate the input.
Last edited by Andy E; 08/03/21 03:55 PM.
