Thanks Steve
have been working on my daily as I can and think the coil pack to 2 &6 has packed up, hard to work out with limited tools and dark whan I get home and no shed to work in and no noise after 7 or 8 pm oh and it been raining and cold, on the + side oneof the guys at waork has the same engine being worked on so Hope to borrow a coil pack off hime to test it