i know is probs an old topic, but i work on the engines at mytravel aircraft engineering at manchester. And wen we fit new parts we spray them with a white developer, then if there is any air leaking from certain valves or clamps etc it turns the devoloper to like a white dust cloud, so u can quickly see where its coming from. I will check the item tonight in work and then post it up
it may not be handy to use on this occasion, but its handy for others who might be experiencing similar faults
