Carburation

[peterg]

Not sure what you meant by holding the priming lever in position Geoff as the position of the diaphragm in relation to the operating lever is fixed.

Replaced a valve that didn't appear to be working and refitted. The car started in a cloud of smoke and settled down. But after about 5 minutes of driving around, just as I was about to back it into the garage it cut out and once again would only restart if on full choke and primed. Then in runs for about 8 seconds and cuts out.

I am beginning to wonder whether the diaphragm spade is locating securely in the operating arm as the petrol level is only at the level of the gauze filter. Is this a common point of wear in AC pumps?