I can confirm that the RV-26 I have gets warm to the touch even with cooling water running through it. I assume that it is because the new engine I have puts out a lot more power and therefore runs the V-drive harder. Walter’s specs say that 75hp (diesel) is close to the limit that an RV-26 will handle. When asked about running the RV-20 dry in the past, they have claimed that it can’t be done, but experience has shown that with care it is possible with some engine configurations. If you run it dry, I suggest a temperature alarm on the V-drive to warn you before it goes up in smoke.
When my RV-26 eventually has problems, I plan to send it back to Walter to have the cases replaced and a rebuild done. I rebuilt my old RV-20 once and don’t want to do it again. It was a bear to get the torque settings correct.
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Rich Carter
Original message
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