Hi, I have a new to me boat, the previous owner removed the faulty mercruiser 4.3 and bolted in a used OMC 4.3 and that is as far as they got when I purchased it. The OMC has a San Juan closed cooling system that has a seperate header tank mounted beside the fuel pump, the main heat exchanger didn't come with any brackets so I have no idea where it should go and in what orientation (i.e vertical or horizontal), if anyone has some advise so I can get some brackets made accordingly it would be greatly appreciated, some images are attached.
Thanks in advance.
Thanks in advance.