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Hi guys, i own 2008 270cr with a westerbeke 60hz, 3.0 bpmg generator raw water cooled, the issue i'm having is that it runs for 20 min (cold start, and with or without load) then shuts down, afterwards it maybe runs from 30 sec - 1 min. i can put my hand on the top of it and leave it there comfortably for about 15 sec. The troubleshooting i've tried so far from the techical manual are:I have changed the oil pressure switch, exhaust temp switch, raw water pump impelle (although when the gen is on it is picking up water and throwing it overboard as normal), fuel filter, sparkplugs, oil filter and oil. I also checked the thermostat (it opens), and the oil pressure readings. The boat fuel tank is 3/4 full (i only use non-ethanol gas with valvetech in it). Could not check the fuel pressure (not sure how on this gen, but I do have a fuel pressure test gauge) and the overspeed switch also because I don’t know how as well. One thing I did notice when I was changing the impeller was the magnetic pick up was loose, i tightned back in but i know that is finely adjusted. A little about the boat i bought it used the generator had ~50 hrs in it, now it has 71 hrs. i use it in brackish/salt water. if anyone has any ideas that can help me i would appreciate it. thanks everyone Sincerely Francesco