Hi guys,
Just to let you know that after an hour or two with a big hammer I've got my engine stripped

Hardest part was the spark-plug - real tight! [:@]
I just need the new parts now, oh, and a plane to put it in lol
Thanks to all you kind folks for getting me this far - you're the best! I think I might have a couple more questions before The R-31 runs so I'll probably be back! But for now I'll leave you in peace.
All the best,
Steve