hutch1nson`
New member
Hi all, I need some help.
I get hot water off electric but not from engine power. It is a 2006 Mercruiser 5.0mpi, feed to the calorifier comes from the inlet manifold (top of engine) and returns to the side of the water pump on front of engine. When I take the return hose off the water pump (and plug the water pump) hot water flows through the calorifier and all hoses get hot, when I reconnect the return to the water pump water stops flowing and the pipes aren’t hot. It seems like both engine take off points are positive pressure and cancelling out each other so no flow. Does anyone have any advice or an alternative negative pressure connection point.
I get hot water off electric but not from engine power. It is a 2006 Mercruiser 5.0mpi, feed to the calorifier comes from the inlet manifold (top of engine) and returns to the side of the water pump on front of engine. When I take the return hose off the water pump (and plug the water pump) hot water flows through the calorifier and all hoses get hot, when I reconnect the return to the water pump water stops flowing and the pipes aren’t hot. It seems like both engine take off points are positive pressure and cancelling out each other so no flow. Does anyone have any advice or an alternative negative pressure connection point.