Michael,
I don't think I will be of much help but I will blabber along anyway. My 5411 runs at about 175 no matter what the water temperature. For the first 5 years I owned the boat, the low oil pressure/ high temperature alarm did not work. In 07, the engine would not start. I took the alternator and starter to an Auto Electric shop to have both of them checked. They found nothing wrong with either one but I had them replace the starter solenoid. To date, everything is wonderful, no problems. The oil pressure/high temperature sensor is very conveniently located behind the starter and since I had both the starter and alternator out, I was pretty easy to replace the sensor. So, as I said before, everything works great as of today. We haul tomorrow so everything should be great until May. I don't know if you have a fresh or sea water cooling system The first thing I would check is the water pump to see if all the vanes on the impeller are there. After that, I don't know. John Emmerich C27 TR Louisville, KY From: [email protected] [mailto:[email protected]] On Behalf Of mlong9876 Sent: Saturday, November 21, 2009 6:01 PM To: [email protected] Subject: [IC27A] New Question--Engine Oil Alarm It looked like the board needed new questions but more importantly, I need answers, so here goes.... :-) There wasn't much wind today so we came back to the marina under power for the last 30 minutes or so. The engine (5411) was reading a little hot (220 - 230) but not a big deal. As we came closer to the marina, I powered down a lot, went into neutral and then heard the engine oil alarm. I heard it every half second (not a consistent sound like when I prime it) and then I put it in gear. The sound was still present and still inconsistent. I made it into my slip without a problem. I checked the oil, but it wasn't low. After cleaning up, I started the engine to try to replicate what I heard but could not. I had it tied securely and put it into gear and kept it there for several minutes at around 2200 RPMs, then revved it in neutral for a while, put it back under load but could not make it happen again. Any ideas? Also, unrelated (or related...I don't know); when moving forward under power, is everyone's exhaust under water and if so, is it white because of the outside temperature (low to mid 50's), is something wrong or is that normal? Thanks in advance, Michael [Non-text portions of this message have been removed]
