Forwarded from the bounce bin. Message is from
'Dave' on twex1160@londonweb.net
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Martin,
Nigel Beale, who sells the Rotax engines here in th UK, has shown me a head
and valves from a 912 which used 100LL. Both were heavily contaminated with
yellow lead deposites to the extent that the valves could not operate
properly. I forget how many hours the engine had done but it is something
you should be aware of. The engine was designed to operated on unleaded
Mogas.
If you e mail him at skydrive@avnet.co.uk he could probably enlarge upon
this.
Dave
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