I look forward to receiving Farm Collector each month.
Something caught my eye on page 17 of the February 2007 issue. In the lower right corner is a picture of a Farmall owned by Rob Bush with an "exhaust-vacuum lift." Wouldn't that be an "intake-vacuum lift"?
- D. Gatzemeyer
Author Oscar H. Will III clarifies: It's actually an exhaust-pressure lift. There was a cut-out valve installed on the exhaust manifold that diverted flow into the pneumatic cylinder to pressurize it and raise the lift. It was even possible to stall the engine if the lift or cylinder got jammed by causing too much back-pressure.