Heat exchange raw water pump, pressure unit
Presently having the heat exchange unit on our Marine Trader Europa (In Australia known as Blue Seas 36) overhauled. Boat built in 1981 in Tiawan. Powered by a single Ford Lees 120 hp.
Now fitted with a raw water pressure unit gauge that detects if the raw water pump is not operating. Unit has seen much better days and gives no indication of make. Pressure unit connects to warning light on dash.
Now need to replace the pressure unit fitted to the hose.
Would anyone know where such a unit would be available or even what pressure would dis-alarm the dash light, as several pressure units are available in auto shops.
I imagine our present unit was retro fitted as it does not appear in the Ford Lees manual.