I've surfed the 120/140 site and read some interesting and useful stuff. David, you 120/140 guys might be interested in surfing the supercub.org site, as well as (the National Aeronca Assn site) http://www.joeacom/phpBB2/
Lotsa interesting information about the 4-cylinder Continentals, repair & mod's. The whole O-200 crank STC thing for the C-85 was discussed recently on both sites, as well as converting a C-85 to a C-90 via a Continental service bulletin.
Some of those guys really know their stuff -- not like here!
Eric
Engine Hesitation
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