![]() ![]() Navigator wrote:Thanks guys, I'm going to give it a shot. I wasn't worried about leaks due to pressure.Īnyway Nav, I hope this helps you somewhat, and you get the situation under control. I didn't bother, as the Intruder only has a couple of very short external hoses/connections. The Evans product simply doesn't vaporize anywhere close to a typical engine's operating temperature, so you could even run a 0 PSI rad cap, if you wanted. If the coolant remains liquid, and doesn't vaporize, it will transfer as much heat as it can to the radiator. This hot spot/vaporizing situation is what additives like Water Wetter try to deal with, by attempting to making the coolant slipperier, so steam bubbles won't have a chance to form in the engine's coolant passages in the first place. Air is an insulator, so heat transfer is further reduced. Are you making more heat than it can shed? Why is that? Is the rad too small? What about the expansion tank? Boil over happens because there's a hot spot somewhere in there which allows the coolant to vaporize, and that vapor contains air. If it were me, I'd want to know what was going on with that V8 setup. The engine produces heat, and that heat must be shed somehow. in my case, I knew I was significantly reducing the surface area/heat transfer ability of the system. With the Evans in there, I don't even think about the cooling system anymore. Before switching to the Evans product, I tried Water Wetter, but that wasn't enough and the thing would purge as soon as I shut down after a ride. I think it likes the new, hotter temperature. ![]() The system runs quite hot, probably close to the operating temp of the air-oil cooled VS1400, but performs very well. I knew I was creating an overheat situation, so I also added an external oil cooler at the same time. I've been using Evans for years, ever since I replaced my Intruder's radiator with a much smaller unit. ![]()
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