System Monitor Exhaust Temp Alarm Beeped

[scottinsydney]

Last week we took the boat for a long runs over two days to clear out the engines. About 1600rps on 12v71TIs. We don't often get the chance to spool up the turbos due to harbour environment. There was more blue smoke than Beijing on a clear day. After 15 minutes or so it all cleared.

Twice during the trip the port exhaust temp alarm beeped. To be truthful, I never even knew there was such an alarm on the panel.

Where on the engine is the sensor/switch for this? Engines were at normal temp and there was good water flow out the exhaust. Is there anything I should check?

[kingsley_oasis]

My 12v71ti's have switch mounted on shower head. If I remember correctly it is normally closed and opens on over temp.

[rwetherington]

the shower head of the exhaust is correct place to look. the senders look like terminal disk. try sliding a knife blade under and pick it up a little. sometime they need to be just off the exhaust a little