| | Re: Diesel trolling valve
Most of the newer boats have electronic controls. The trolling valves work much the same way as the older ones- allowing the transmissions to slip on purpose to allow slower trolling speeds without having to drop engine RPMs. On older boats, you had to remember to disngage the trolling valves before running the boat at speed, otherwise you would damage the trannies. Now, the electronic controls automatically turn off the trolling mode when the throttles are pushed up to a certain point, allowing you to run. Also, the new system allows how MUCH slippage is in the trannies, which gives you the ability to troll super slow, or you can advance the throttles a little to create less slippage and more speed. Pretty amazing technology. ZF has a very good system.