2015 sundancer 510 coolant loss

[john z]

am losing about 18 oz an hour of coolant in the reservoir,no fluid in the bilge.
qsc 550 cummings with approx 1000 hours.recent heat exchanger and aftercooler service done by seller.boat is new to me.any ideas where coolant might going?

 

[Strecker25]

am losing about 18 oz an hour of coolant in the reservoir,no fluid in the bilge.
qsc 550 cummings with approx 1000 hours.recent heat exchanger and aftercooler service done by seller.boat is new to me.any ideas where coolant might going?

Any exhaust smoke? Fluid samples of coolant and oil should be done to see if you have any contamination of oil or coolant

 

[Mark.60]

If the heat exchangers were serviced and now a problem thats where I would start. Pressure test. After coolers only have sea water in them