Hi again
Johny looked at that and seems fine-pete thought of that but wasn't sure it could happen-looking at how things have panned out the coil looks to have been the original problem-your idea looks to have then occurred-car is now running on new coil-checked tappets and they are spot on and got new rotor arm and cap to go on - when warmed up this morning still a small backfire on revving up but haven't been out yet as roads still wet-hopefully any other problems will be sorted-thanks again for all your help