Hi Tony,
I recently had a similar oil leak from the dizzy of my R20. I too pulled it down and replaced the oil seal at the bottom. The original seal is 12.5 X 22 X 4.5 (or 5). I could not get either of those but got a 12.5 X 22 X 6 and fitted that. So far no oil leaks. I got the seal from CBC in Adelaide.
Keep up the good work
Cheers
John
I recently had a similar oil leak from the dizzy of my R20. I too pulled it down and replaced the oil seal at the bottom. The original seal is 12.5 X 22 X 4.5 (or 5). I could not get either of those but got a 12.5 X 22 X 6 and fitted that. So far no oil leaks. I got the seal from CBC in Adelaide.
Keep up the good work
Cheers
John