Hello Gentlemen
Thanks for the kind comments. You are right, I lost timing on the left bank on Friday (after running well for 30 hours) and it took me several hours to find the problem. Mike Tull who exhibited the superb radial engine helped trace the problem to a slipped distributor rotor button.
On Saturday it ran well until the evening when it really blew its guts. I think that the crank cracked when it was running on 6 cylinders. I won't find out what the exact problem is until February when the Tiger arrives back in Australia. I will be as interested as you to find out what broke.
Thanks
Gerard Dean, Glen Iris, Australia