m15

Hi all, I am the proud new owner of a e28+ and have been enjoying the forensic science of trying to understand previous owners repairs and additions for the last month. Question: I am pretty sure the temp sensor is bad since the wiring is good and the gauge responds to being direct grounded. Is...

Is anyone familiar with a cast aluminum housing for an M-15 cooling system that is Universal part number 299943? I think this mixes a coolant system (antifreeze, etc.) with the raw seawater cooling. This riser (it really looks like a manifold to me) has cracked beyond what I think would be...

I have a 1983 E28+ equipped with a Universal M-15 diesel that insists on running hotter than spec (which is 150 degrees). The engine is set up with a closed coolant system rather than use raw seawater for direct cooling. Would this "modification" cause the engine to run hotter (say 175...

My 1984 E-28 has an M-15 engine, (old model no 5411). My owners manual for the engine clearly shows that it is a salt water cooled engine. However, my engine definitely has a cooling circuit with an externally mounted heat exhanger. Did Westerbeke ever make a closed coolant circuit version...