Hi Grumpy. Many thanks for the welcome and for the suggestions. The problem may be with the pump. With both hoses off, I tried to see if there was any vacuum at all on either of the brass inlets/outlets. Zilch! I took the bulb off again and checked that. Visually ok and it sticks to a glass plate like a limpet on steriods when squeezed and released. Soooooo do I assume that the problem could be with the valve assy. dooferiser thingy that lurks below the bulb? I'm a little wary of poking at it too much to see what moves and what doesn't. Would soaking it in neat petrol for a while to dissolve any crud that may be in its guts be advisable or is it easily stripable for closer examination?
Thanks again.
Mike.
