by N3322G » Mon May 09, 2011 2:31 pm
Nick,
I had the Twin's coolers overhauled at the same time of the engine overhaul. The engine overhaul replaced the vernitherm and all has run well before and after. You might check on these two items and when they were last done on your aircraft. I didn't know so I just had them done without regard to past maintenance as described above.
Hope this helps.
Pat
Patricia Jayne (Pat) Keefer ICS 08899
PA-39 #10 Texas