
Posted: Wed May 18, 2016 6:09pm
Post Subject: Calorifier sitingHello, Having discovered that my 20 year old Eberspacher D4WSC is beyond economic repair, I have decided instead to use the inlet/outlet from my Thornycroft 80D to feed the (small) calorifier on my narrow boat. However due to space constraints (the engine bay is quite short and the engine sited forward) and previous position of the Eberspacher the calorifier is sited quite high up. This means that the top of the calorifier is approximately two feet above the top of the engine block. I understand that it is possible to fit a flat sealing cap on to the engine header tank and connect a pressure hose from the overflow outlet to an expansion tank which can be sited above the level of the calorifier, but is this height difference asking a lot of the engine water pump? The engine is currently cooled by two skin tanks of approx. 9cu ft of cooling space.