J
jk higgins
Guest
"I have 3116 TC's (fre
"I have 3116 TC's (fresh water cooled)in my Tollycraft. I noticed unusual steam coming out the back of the boat while at cruise power. The temp indicator indicated 220 so we shut it down to investigate. The coolant was gone. There was no coolant water in the bilge. The oil does not show any signs of water. The heat exchanger has been removed and pressure tests ok. The sea water pump checks OK. The coolant level was checked before operation the day of the event and was full. The engine was operated for less than 30 minutes before the incident occured. Where else can the fresh water coolant be injected into the exhaust system to cause the steam and to lose the coolant? By the way I have two over-temp warning systems, one on the fresh water coolant system and one on the exhaust water discharge system, neither one went off. Seems like a weak link in the warning system. If there is no coolant, then what does the probe measure? The one on the exhaust side is measuring the coolant flow (temperature)of the sea water discharge. Since the sea water pump was ok it did not go off."
"I have 3116 TC's (fresh water cooled)in my Tollycraft. I noticed unusual steam coming out the back of the boat while at cruise power. The temp indicator indicated 220 so we shut it down to investigate. The coolant was gone. There was no coolant water in the bilge. The oil does not show any signs of water. The heat exchanger has been removed and pressure tests ok. The sea water pump checks OK. The coolant level was checked before operation the day of the event and was full. The engine was operated for less than 30 minutes before the incident occured. Where else can the fresh water coolant be injected into the exhaust system to cause the steam and to lose the coolant? By the way I have two over-temp warning systems, one on the fresh water coolant system and one on the exhaust water discharge system, neither one went off. Seems like a weak link in the warning system. If there is no coolant, then what does the probe measure? The one on the exhaust side is measuring the coolant flow (temperature)of the sea water discharge. Since the sea water pump was ok it did not go off."