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FJR Motorcycle Forums
Technical & Mechanical Problems
Old timer's engine question
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<blockquote data-quote="Redfish Hunter" data-source="post: 1109747" data-attributes="member: 28773"><p>FJRay, go to Google, start typing in Detroit Diesel and you will see plenty of examples of them running backwards. My Dad saw this himself back in the '60s with Detroits that were already old then. The ones he described were in old drag lines and cherry pickers of that era. I have no idea what series they were at that time.</p><p></p><p>Regarding Detroits in boat bilges, I have some experience crawling around 53, 71, and 92 series Detroits. Nothing like being the smallest and youngest one and therefore the best suited to pulling wires in tight, oily, greasy, hot bilges. I have never personally experienced them running backwards.</p><p></p><p>I have talked to some old captains who described the process of "Reversing the Engine" in old shrimp and oyster boats. I do not recall the bygone brand of engines they used. These early engines had no reverse gears in the transmission. The fuel flow was shut off to each individual cylinder to slow the engine and <em>With Perfect Timing! </em>the fuel was turned back on to cause the motor to turn backwards. This effectively allowed "reverse" for docking maneuvers. I cannot even imagine the crashes I would have caused had I been either the skipper or the deckhand.</p></blockquote><p></p>
[QUOTE="Redfish Hunter, post: 1109747, member: 28773"] FJRay, go to Google, start typing in Detroit Diesel and you will see plenty of examples of them running backwards. My Dad saw this himself back in the '60s with Detroits that were already old then. The ones he described were in old drag lines and cherry pickers of that era. I have no idea what series they were at that time. Regarding Detroits in boat bilges, I have some experience crawling around 53, 71, and 92 series Detroits. Nothing like being the smallest and youngest one and therefore the best suited to pulling wires in tight, oily, greasy, hot bilges. I have never personally experienced them running backwards. I have talked to some old captains who described the process of "Reversing the Engine" in old shrimp and oyster boats. I do not recall the bygone brand of engines they used. These early engines had no reverse gears in the transmission. The fuel flow was shut off to each individual cylinder to slow the engine and [I]With Perfect Timing! [/I]the fuel was turned back on to cause the motor to turn backwards. This effectively allowed "reverse" for docking maneuvers. I cannot even imagine the crashes I would have caused had I been either the skipper or the deckhand. [/QUOTE]
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Technical & Mechanical Problems
Old timer's engine question
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