Martin, Take out the main relay and hook it up to a bench power supply, and while it's hooked up turn the power supply off. The coil will let go but sometimes the contacts won't for a second or two. And it's not because they are burn't. I'm not an engineer, but this has puzzled me for a while. There is so much capacity in the circuit, I think it's whats holding the contacts together till it can bleed of.??? What do you or someone else thinks. John hervey http://www.specialtauto.com/engine.shtml << On #2727 we're having a really bizarre problem. The ignition relay will not turn off when the key is removed. If you un-plug the switched feed to the relay, it of course turns the relay off, but plugging it back in does not turn it back on. From this I assume the relay must be powering itself somehow (turn it on and the supply it's switching is somehow fed back to the coil). >>