quote:Gene, when my e-unit started to hang up, I installed a QSI ACRU electronic reverse unit. No buzzing. On power up, initial movement will be forward. I doubt these are still available---that's the catch.
If you purchase an engine with a working e-unit, it is unlikely you will ever have to replace it. The parts to renew them, with the exception of the special plunger and spring, are readily available. (They are standard e-unit parts) Used horizontal e-units are around too.
They sold lots of Berkshires and turbines in 1946.