How's your Hot Water Heater pumbed?

[vesper]

hi,  I saw a Westerbeek bulletin with a schematic, and made a drawing that's easier to read of how we piped in our replacement hot water heater, (for the next time).   email me at greg4706@yahoo.com and I'll send it to you, 

gp

[Bev & Billy on Sta-sea-dawn]

OK- these backward mounted engines make explanations difficult. So we're going to call the transmission end the rear of the engine. The port behind the thermostat housing on the left should be where you have a sending unit. The other port is located a little further forward and on the right. Should probably just be a plug there. I pulled the sending unit, installed a 1/2 X 2" nipple, then a tee. The sending unit is in the side of the tee. The wire is long enough to reach. On top, another nipple, a ninety and a hose fitting. In the other port, just a nipple (6"?) with a ninety and hose fitting. This gets the water heater in the cooling system shunt, or bypass and out of the main loop. The main loop between the engine and heat exchanger needs to be bigger hose (1.25 sounds right) in order to move enough volume. It is important to keep the sending unit on the original port. That port will be the outlet going to the water heater. If the sending unit gets moved to the other side, it won't sense engine temp like it needs to. Say you are chugging along under power, somebody else is showering or washing dishes, the sending unit will be seeing coolant temp returning from the water heater, which is not the engine temp. So keep the sending unit on the left side. The 2" nipple below it won't affect the operation of it because there will be flow past it.

I think I mistook this sender to be my oil sender ...where is the oil and temperature sender located on your motor?