RE: V7 - It Works (worked!)
Thanks for your comments and advice guys. It's all appreciated
It's raining here today, so I won't be making any more progress right now. But what I have done is mix-up sone 25% fuel, ready to try when the weather improves. I also washed the needle valve out (again) and replaced the fuel pipe with some new stuff
Alan, I had to laugh at what you said about the LMH's engines: "you get a lot of engine tuning experience" - you certainly do that . . . . but I could really get-by without having to experience all the hassle!
I was just thinking that my LMH was just fine on its old V-6. It would fly just fine - except that I thought it was showing signs of age. It's only since trying to get this V-7 to work that I've been totally frustrated by my LMH. So if I really can't get this thing to work I'll re-fit the old engine. It seems a retrograde step, but it did at least run reliably