1. If your coolant cap is higher than the water heater it bleeds automatically. Just keep the coolant topped off.
2. Sure, why not.
3. Propeller might matter here. I need 2300 rpms to get to top speed, about 7 knots in flat water, with my fixed three-bladed prop. WOT is 2600-2700, makes more noise but the stern squats and no speed increase. How fast do you go at 2000 rpms? That sounds like not using allt he diesel has to offer.
I'm not an expert on this stuff.
By the way, no coolant ever shows in my overflow tank. It is "supposed to", or at least that's why the tank is there--so expanded coolant can boil off and then return to the manifold automatically as the engine cools. I guess the point is, individual symptoms don;t always mean the same thing.
2. Sure, why not.
3. Propeller might matter here. I need 2300 rpms to get to top speed, about 7 knots in flat water, with my fixed three-bladed prop. WOT is 2600-2700, makes more noise but the stern squats and no speed increase. How fast do you go at 2000 rpms? That sounds like not using allt he diesel has to offer.
I'm not an expert on this stuff.
By the way, no coolant ever shows in my overflow tank. It is "supposed to", or at least that's why the tank is there--so expanded coolant can boil off and then return to the manifold automatically as the engine cools. I guess the point is, individual symptoms don;t always mean the same thing.