I am just in the process of (maybe) purchasing a 1977 F337G and found out it definitely has the non VAR crankshafts. From what I see in this Critical Service Bulletin it would appear that I need to change them to VAR cranks when the crankcase is opened up.
http://www.tcmlink.com/pdf2/csb96-8.pdf
What about TBO? Some say this Critical Service Bulletin limits me from flying the engines "on condition". These engines are at 1440 hours and counting... Can someone please confirm? I have a call into Continental as well but so far nothing back from them.
Thanks!
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